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Hello and welcome to The Food Chain 00:00
from the BBC World Service with 00:01
me, Ruth Alexander. 00:03
In this episode we're asking should 00:05
you eat breakfast, and if so, 00:07
what? 00:09
Joining me is Courtney Peterson, a 00:11
researcher in intermittent fasting 00:14
and Associate Professor of Nutrition 00:15
at the Harvard TH Chan School 00:17
of Public Health in the US. 00:19
It's great to be here thanks for 00:21
having me. Also Professor Alexandra 00:22
Johnstone nutrition scientist 00:24
based at the Rowett Institute at 00:26
the University of Aberdeen in 00:28
Scotland. Hi Ruth, thank you for 00:29
inviting me to join you today. 00:31
And Marianella Herrera an 00:33
associate professor at Central 00:35
University of Venezuela and 00:36
visiting lecturer at Framingham 00:39
State University in the US. 00:41
Thank you for having me this is 00:43
a great opportunity. 00:44
Thank you. 00:46
So I have to of course start 00:47
by asking you each what 00:49
did you have for breakfast today? 00:51
I had a 00:54
very standard breakfast. 00:56
I had 00:59
a mini croissant, 01:01
some jelly, 01:04
a piece of turkey and 01:06
a coffee. 01:09
That sounds very nice and 01:10
a step up from my wholewheat 01:12
cereal with milk and a coffee. 01:14
Alex, what did you have? 01:18
Oh Ruth so I'm not actually in the 01:19
UK just now I'm in Paris 01:20
so I had 01:22
and I had to have, I was really 01:24
looking forward to it, a 01:26
coffee and a croissant and 01:28
I had a banana that I took in my 01:31
handbag that traveled with me so 01:32
and I've been looking forward it 01:34
all weekend to 01:37
to enjoy that it was lovely. 01:39
Wonderful. 01:41
I had a giant fruit smoothie 01:43
with bananas a 01:45
little bit of almond milk and orange 01:47
strawberries and some protein 01:50
powder. 01:51
Is breakfast the most important 01:54
meal of the day or is that a myth? 01:56
So we've had a lot of exciting 01:58
research over the 02:00
past 20 years and I'd say 02:02
we've learned the important finding 02:04
that not only what 02:06
you eat and how much you eat, but 02:08
when you eat matters. And we 02:09
sort of learned that there are three 02:11
core principles that really matter. 02:12
So the first is, how long 02:14
do you fast each day? And 02:16
the idea is that we need a longer 02:18
fasting period each night just like 02:20
we need a period to sleep to rest 02:22
and repair, we need a longer fasting 02:24
period to rest and repair. 02:26
And through my and others' research, 02:28
we found that typically fasting for 02:29
16 hours in the day can improve 02:31
health. Does that mean it could be a 02:33
good idea to skip 02:35
breakfast then? 02:36
Not necessarily. 02:37
But skipping breakfast may not be as 02:39
bad as you think. It sort of depends 02:41
what you do with dinner. And 02:43
I can come back to that. 02:45
So the second principle we've 02:46
learned is the time of day that 02:47
you eat matters. Where it's 02:49
better to eat earlier in the day. 02:51
So again this suggests that 02:53
breakfast actually is really 02:55
important because we find your 02:56
metabolism is higher earlier 02:58
in a day and that's due the 03:00
circadian system or your body's 03:01
internal biological clock. 03:02
And the sort of third principle 03:04
we've learned is having meals at 03:06
consistent times of the day really 03:07
matters, because your body adapts to 03:09
what you do on a habitual 03:11
basis. 03:13
So eating at consistent times your 03:13
body's not confused and it can start 03:15
timing its internal metabolism to 03:17
match that. So you can kind of mix 03:20
and match these principles. 03:21
So if you eat earlier in the day and 03:23
do intermittent fasting that's sort 03:25
of the best but you can potentially 03:26
skip breakfast and get some benefits, 03:29
but it's probably better 03:31
to 03:33
eat breakfast earlier in the day if 03:35
you can. 03:36
What are the benefits of 03:36
having an early breakfast, 03:40
and like how 03:42
early? 03:44
So your body has this internal 03:45
biological clock known as the 03:47
circadian system that makes you 03:48
better at doing different things at 03:50
different times of the day. 03:52
So for instance, in most people, they 03:53
have their best blood sugar control 03:55
in the mid- to late-morning. 03:57
So that's going to be around sort of 03:59
between maybe about 10 am 04:00
to noon time. 04:03
And so if you can eat a 04:04
large breakfast in the morning and/or 04:06
I would even say a large lunch 04:08
in the morning, your body's going be 04:10
better at metabolising that food. 04:12
And what that means is, your body's 04:14
going to actually, your blood sugar 04:16
levels won't spike as high. 04:17
You might burn slightly more 04:20
fat. You might burn 04:21
slightly more calories from eating 04:22
earlier in the day. 04:23
Whereas if you had, if you eat most 04:25
of your food later in the day, your 04:27
metabolism is actually slower later 04:28
in the day. So for instance, if you 04:30
ate the same, I don't know, 04:31
bowl of ice cream in the morning, the 04:33
afternoon, in the evening, your blood 04:35
sugar levels will spike 04:37
significantly higher in the 04:38
afternoon and the evening. 04:40
So as much as possible it is 04:41
better to eat earlier in the day. 04:43
And one last tidbit in that area 04:45
which is when it really 04:47
starts getting dark outside and your 04:49
body starts releasing the sleep 04:50
hormone melatonin, that actually 04:52
quite dramatically raises blood 04:54
sugar levels. 04:56
I have something to add to that. 04:57
Marianella. 04:59
Because because it's very 05:00
interesting. 05:01
Courtney is recommending in fact 05:03
that we eat as early as 05:04
possible. 05:07
And I'm just, but think 05:08
how important it 05:10
has been historically eating 05:12
an early breakfast for 05:15
the workers in 05:17
ancient times. 05:19
Breakfast was developed, 05:21
in fact, 05:22
to nurture those agricultural workers 05:26
that had to start very 05:29
early in the morning so they 05:31
felt that with breakfast 05:33
that would be better and 05:36
they could have a 05:39
better and 05:41
improved jobs 05:43
across the day, more effective, 05:45
more even more alert 05:47
across the 05:49
journey. 05:51
So that is very interesting, 05:52
I find. 05:54
So, people's... 05:56
even before scientists came along 06:00
and studied what was going on inside 06:02
our bodies, people just knew 06:04
that they needed a hearty meal 06:05
in the morning to set them up for a 06:07
day's work. 06:09
And if you skip 06:10
breakfast, what 06:12
health problems can arise? Alex? 06:14
I think it's first of all I want to 06:17
say that there is no 06:19
universal definition 06:21
of what is considered to be 06:23
a nutritional breakfast. 06:25
So to summarise that, 06:27
this is the working definition that 06:29
I use. It's the first meal of the 06:31
day that breaks the fast after 06:33
the longest period of sleep and 06:35
consumed within two to three hours 06:37
of waking. 06:40
So that gives quite a large 06:41
scope, doesn't it, for people to 06:43
achieve that. 06:45
Now, breakfast skipping is interesting 06:46
because my 06:48
own work would tend to suggest and 06:50
that sort of observational large 06:52
scale epidemiological 06:54
studies would also support this. 06:56
That people who 06:59
have a regular breakfast 07:01
are actually leaner. 07:03
And my own 07:06
work would tend to suggest that 07:08
having your largest 07:10
meal of the day in 07:12
the morning period 07:14
gives you a much better 07:16
appetite control, which 07:18
then means it's much easier 07:20
to control food intake 07:22
later in the day. 07:24
So really I am supporting 07:26
the meme breakfast like a 07:28
king and dine like a pauper. 07:30
So for you, then, breakfast 07:32
is the most important meal of the 07:35
day? So it's really important 07:36
particularly for people who 07:38
are trying to maintain a healthy 07:40
weight and people who were 07:42
trying to lose weight. 07:44
And I think one positive 07:47
message from the work that I've done 07:49
is that the time of 07:51
day does not, from 07:53
our own work, published on cell 07:55
metabolism, tend to influence 07:56
energy metabolism. 07:58
We looked at large 08:00
morning eaters and 08:02
large evening eaters. 08:04
And tried to look at whether it 08:06
impacted on metabolism 08:08
and energy balance and 08:10
we found that weight loss was 08:12
identical between 08:14
the groups. Now that is a really 08:15
important message, because 08:17
we see that around 30 08:19
to 40 per cent, depending on which 08:21
country you're based, of 08:22
the population are going to be 08:24
involved in shift work, who 08:26
are not able to comply 08:28
to that advice that Courtney just 08:31
shared about when to eat 08:32
during the light cycle and to sleep 08:34
when it's a dark cycle. 08:36
So that's actually a really positive 08:38
message to share, that it doesn't 08:40
matter what time of day 08:42
for losing weight. 08:43
That flies in the face, doesn't it, of 08:45
some of the 08:47
evidence you were talking about, 08:49
Courtney, that 08:51
actually eating earlier 08:53
tends to be better for 08:55
your health? 08:57
Not necessarily. 08:58
So I wouldn't 08:59
I wouldn't quite agree with that. 09:01
So I actually agree with almost 09:02
everything Alex says, perhaps 09:04
everything. 09:06
So she's done really phenomenal 09:06
research in this 09:09
work, and there's actually been some 09:10
fantastic studies out of Israel 09:12
testing the old adage of eating 09:13
breakfast like a king lunch like 09:15
a prince and dinner like a pauper. 09:17
And those studies do report 09:18
that when people eat most their 09:20
calories for breakfast, they 09:22
do lose more weight. 09:25
It lowers their blood sugar levels 09:26
it lowers their blood pressure 09:28
and the fascinating thing is, in 09:30
women, it even improves fertility, 09:32
which I think is absolutely amazing. 09:34
And what we've learned now is some 09:36
of these same genes and proteins in 09:37
our body that produce these 09:39
circadian rhythms are also involved 09:41
in rhythms that are longer and 09:43
shorter than 24 hours. 09:45
And one example of that is 09:46
actually the menstrual cycle. 09:48
So by optimising our circadian 09:50
rhythms, we may also be improving 09:51
the menstrual cycle, 09:53
men and women's hormones and so 09:55
forth. 09:57
So we definitely, I think there is, 09:58
you know, by and large there 09:59
have been meta-analyses finding that 10:01
eating early in the day does help 10:03
for weight loss. 10:04
Now, in the field of intermittent 10:06
fasting, interestingly, we find 10:07
that if people eat in an eight-hour 10:10
period, regardless of what 10:11
time of day that eight-hour period 10:13
is, they lose weight too. 10:14
And you might say, but didn't you 10:16
just say you need to eat earlier in 10:18
the day? But the interesting thing is, 10:20
this is where you go back to those 10:21
three core principles. 10:23
So if you also have a longer fasting 10:24
duration, you can still get benefits 10:26
for weight loss. 10:28
And so there are a lot of people who 10:29
like to do intermittent fasting by 10:31
skipping breakfast and they still 10:32
eat dinner at a relatively early 10:34
time. 10:35
So if your doing that, say if you're 10:36
skipping breakfast, starting to eat 10:38
at, you know, 12pm, and then 10:39
stopping eating at 8pm. 10:41
Or I guess you'd call it 10:43
is that 20 hundred hours 10:45
military time, that 10:46
you can still lose weight. 10:48
And it's about the same, roughly the same 10:50
size and effect. 10:52
So we're not talking about, you know, 10:53
dramatic you're going to, you know, 10:55
smash all your weight-loss goals. 10:56
But we're talking about losing maybe 10:58
an extra two pounds a month, or about 11:00
one kilogram a month, or one percent 11:01
of your body weight a month. 11:03
So both of these things are true. 11:04
Now the interesting thing is with 11:06
intermittent fasting we don't 11:07
really see big blood sugar benefits 11:09
or improvements in blood pressure 11:12
unless those eating windows are 11:13
earlier in the day. 11:15
And so it looks like they are for 11:16
some aspects of your health. 11:18
You really need to eat earlier in 11:19
the day to get those benefits. 11:21
And that seems to be particularly 11:22
true for blood sugar and blood 11:23
pressure. 11:25
But for weight loss, it looks 11:26
to be a little, you know, yes 11:28
eating earlier in a day you can get 11:30
weight loss benefits, at least from 11:31
my read of the literature. 11:33
But you can also skip breakfast and 11:34
lose weight as long as dinner is not 11:36
too late. 11:38
There's a really interesting study 11:38
out of Japan that showed this. They 11:40
found that among people who skip 11:41
breakfast, about half skip breakfast 11:43
and eat dinner late. 11:45
And in those individuals, they had a 11:46
much higher risk of cardiovascular 11:48
disease and having obesity. 11:50
But there's a second group of people, 11:53
roughly half the population, who skip 11:55
breakfast and eat dinner at a normal 11:56
time. And those individuals didn't 11:58
have much higher risk 11:59
of obesity and cardiovascular 12:01
disease. 12:03
So what that suggests to me is I 12:04
like to look at both breakfast and 12:06
dinner as very important. 12:07
They're both important. 12:08
Because dinner time is sort of, you 12:10
know, the time later in the night your 12:12
body's metabolism is slower. 12:13
So I think it's also very important 12:15
that we're mindful of what we do at 12:16
dinner time and either we make 12:18
dinner a relatively healthy meal or 12:20
we move it to earlier in the day. 12:22
So those are sort of my suggestions. 12:24
Then of course there is the question 12:26
of what we should be eating. 12:27
And we asked people who follow the 12:29
BBC World Service Facebook page, 12:31
what did you have for breakfast? 12:33
Hi I'm Andrea from New York City and 12:35
I'm here to talk about my breakfast 12:37
routine. 12:38
Almost every morning, I have a 12:39
smoothie. Frozen blueberries, 12:41
frozen spinach, protein 12:43
powder, chia seeds, 12:45
ground flax seeds, and almond milk. 12:47
And I put it all in this blender. 12:50
Sometimes I also add a banana to 12:52
it and I put in a big cup 12:54
and I drink it all morning long. 12:56
It's delicious. 12:57
It gets your fruits and veggies in 12:58
has lots of fibre and 13:00
I love it. It's so good. 13:02
My name is Joy. 13:03
I'm from Trinidad and 13:05
my breakfast consists of 13:07
local foods 13:09
mainly. 13:11
So right now avocados, or as we 13:12
call them zabocas are in season. 13:14
So zaboca on toast 13:17
with pawpaw, 13:19
that's papaya, or 13:21
pomeracks or five 13:24
fingers or whatever fruit is 13:26
in season, as well 13:28
as a nice big cup of coffee. 13:30
It's my breakfast of choice. 13:33
Good morning The Food Chain. 13:35
My name is Catherine and I'm from 13:36
south-east London in the 13:38
United Kingdom. 13:40
It's about 11 o'clock in the morning 13:41
here and I am just about to have my 13:43
breakfast my first meal of the day. 13:45
I have had some coffee I always have 13:47
a coffee first thing in the morning. 13:49
So this is what I'd like to call 13:51
my lush and healthy homegrown 13:53
breakfast. 13:55
There are two parts to it. 13:56
The first is an 13:58
apple. It's a huge pink lady apple 14:00
that a friend of mine 14:02
and I bought a big bag and split 14:04
between us. It's one tablespoon 14:05
of whole Greek 14:07
yogurt and those two little 14:09
raspberries are from my garden. 14:11
That's about all I've got left. 14:13
Earlier in the year I was using a 14:15
lot more Kent strawberries, which 14:17
were cheap in the supermarket and I 14:18
also had some tayberries that came 14:20
early in the year. 14:21
If I have nothing else this is what 14:23
I have in the morning at the 14:25
moment. 14:27
Following up from that and this is 14:28
what makes it lush is I 14:29
have a slice of wholemeal toast. 14:31
With a tablespoon of cream 14:33
cheese I've mixed in there 14:35
a mashed anchovy and some 14:37
chives and some small spring onions 14:39
again that I've grown in my garden. 14:41
I won't have many of those left. 14:43
This might be the last set that I 14:45
have of the small onions. 14:47
The cherry tomatoes also are 14:49
homegrown. So I'm very proud of 14:51
that. I've had a really good harvest 14:53
this year. 14:55
And on top of that is a boiled egg 14:56
and a little splash of 14:57
Worcestershire sauce. 14:59
Talk about 15:00
breakfasting like royalty. 15:00
What an absolute feast, Cath. 15:02
I would love to come to your house 15:04
for breakfast. 15:06
Alex, what does a healthy 15:08
breakfast look like? 15:10
What do we know about that? 15:11
The type of breakfast that we eat is 15:12
really incredibly important. 15:14
So I know from my own research 15:17
that appetite and 15:18
satiety are very 15:20
much influenced by the 15:22
macronutrient composition of the 15:24
food that we're eating and that 15:27
higher protein meals are more 15:28
satiating in the morning and that 15:31
allows you to feel fuller 15:32
for longer and 15:34
are perhaps more rewarding. 15:37
Which means you're much less likely 15:39
to give in to those food cravings 15:41
later in the day where you might 15:43
grab ready to eat 15:45
high salt, high sugar, 15:47
high calorie food 15:49
products. 15:51
So in the examples 15:53
you gave, they sounded very 15:54
appetising. 15:56
They also included 15:57
fruits, vegetables and 16:00
whole grains. 16:02
That's all really important 16:03
aspects of a healthy 16:05
diet. 16:06
Marianella, what do people typically 16:08
eat for breakfast in Venezuela 16:10
and Colombia, the Latin American 16:12
countries you study? 16:13
Well, the typical things 16:15
are one thing and the traditional 16:17
culinary dishes for breakfast. 16:19
So one thing you may have heard 16:21
about arepas, which is 16:23
the cornbread of 16:25
both countries. 16:27
And there is a controversial 16:28
issue like whether the arepa 16:30
is from Colombia or Venezuela. 16:32
It happens to be both 16:34
in the origin. 16:36
And they, you know, we 16:38
take it with cheese or 16:40
filled with shredded 16:42
beef or shredded 16:44
pork or shredded chicken. 16:46
And avocado. 16:48
The use of avocado and black beans 16:50
is important. 16:52
So that is how it looks 16:54
like. 16:56
The reality is very different for 16:57
the many poor people experiencing 16:59
hunger and food insecurity 17:02
across Latin America in 17:04
general. So we 17:06
definitely 17:08
will not hear as much. 17:09
And if we can see also, 17:11
as stated by the latest 17:13
FAO report, the Global 17:15
Food Security Report, one of 17:18
the main concerns across the globe 17:19
is food inflation, 17:21
which is reflected pretty 17:24
much everywhere. 17:27
We said we would love 17:28
to have healthy meals. 17:30
However, can we afford 17:32
those healthy meals? 17:34
And you can see pretty much across 17:36
Latin America, 17:38
South East Asia and 17:40
Africa, people cannot afford 17:42
buying healthier foods or 17:45
even their traditional foods. 17:47
So it's not only 17:50
an issue for 17:52
the health. 17:54
If we can see, I mean, avocados are 17:56
healthy, but they are expensive. 17:58
Black beans, even black beans and 18:01
rice, which is a very traditional 18:03
Latin American food. 18:05
They might be 18:08
not only 18:09
costly, 18:11
but it's the utilisation 18:13
is compromised, as there 18:16
might not be gas 18:18
or electricity available for cooking 18:20
those. 18:22
So we have a problem here 18:23
in terms of food security, in 18:25
terms of access to foods and 18:27
the utilisation of food. 18:29
So people neglect 18:31
those eating 18:33
patterns, not because they 18:35
want, because they, 18:37
they've been forced to 18:38
leave those behind. 18:40
Skipping breakfast because they have to? 18:42
They have to, and it's 18:43
mainly a coping strategy 18:46
during emergency. Mothers, 18:47
and this is really not a 18:50
nice thing, mothers will leave the 18:52
children sleeping until 18:54
pretty much the lunch hour. 18:57
So they skip breakfast and then go 18:59
directly into lunch. 19:01
And therefore we are saving 19:03
money for, of one 19:05
meal. 19:07
And the evidence says that 19:07
children need a good breakfast, 19:10
particularly if they are attending 19:13
school and therefore 19:14
eating at school becomes 19:16
an attraction 19:19
for keeping and 19:21
maintaining the scholar 19:23
activities 19:25
of the kids. 19:27
So because the kids are not only 19:28
going to school to learn, 19:31
but they're going to eat 19:33
at school. Courtney, where 19:34
you are in the US, people will 19:36
also have been feeling the 19:37
effect of rising food prices. 19:40
People also have 19:42
very busy lives. 19:44
And, you know, I 19:46
could imagine someone watching 19:49
this, listening to this and 19:51
thinking, well, how 19:52
can I fit in a really well-cooked, 19:54
wholesome breakfast early 19:57
in the morning? 19:59
I've, you know, I've 20:00
got to get up, get ready for work. 20:03
I've got to get my kids ready for 20:04
school. What practical advice 20:06
do you have for people who 20:08
are time-poor and 20:10
maybe short on cash as well? 20:12
Yeah, absolutely. 20:13
So I think one of the biggest thing 20:15
is to plan in advance. 20:16
So we find actually what's called 20:18
meal prepping or kind of 20:19
planning your meals in advance and 20:21
making multiple at a time is just a 20:22
huge strategy that helps people lose 20:24
weight and just sort of eating a 20:26
healthy diet. 20:28
So I'll give you an example. 20:29
You know, so for instance, you might 20:30
say every day I'm going to have a 20:31
smoothie. 20:33
Now what you eat every day might 20:34
vary. Maybe some days you'll throw 20:35
in banana. 20:37
Some days you might throw in, you 20:37
know, I don't know, pineapple 20:39
or something like that. 20:41
Berries tend to be more expensive, 20:44
but there are cheaper fruits. 20:45
You know, melon actually is a really 20:48
cheap fruit and extremely 20:50
nutritious. That's sort of related 20:51
to squashes in some sense. 20:53
And so the mineral content is 20:55
actually quite high and you can buy 20:56
watermelon relatively cheap, for 20:58
instance, and that can feed you for 20:59
several meals. 21:01
You could probably blend watermelon 21:02
with a little bit of berries or 21:04
something like that and bring some 21:05
of the cost down. 21:07
Blending in things like chia seeds 21:08
or flax seeds can work. 21:10
You can also blend in some yogurt, 21:12
obviously avoid the yogurts with 21:14
sugar. 21:15
You can blend in dairy. 21:17
You could make, you know, a 21:18
breakfast. 21:19
You know, eggs are now really 21:20
expensive in the US, but they used 21:21
to not be. 21:23
You know people get really creative. 21:25
They have these fantastic recipes 21:27
with slow cooked oats, which you 21:29
could just mash with some banana and 21:31
make into a pancake. 21:32
You could add a little bit of 21:34
protein power to that too, to get 21:35
some of the benefits that Alex has 21:37
talked about. 21:39
We've talked about the cognitive 21:40
benefits 21:41
and the health benefits. 21:41
Is there also a general 21:43
wellbeing benefit to taking the 21:45
time to sit down and have your 21:47
breakfast? 21:49
We have a wonderful study 21:49
that we did several years ago 21:51
in Venezuela when we 21:53
implemented 21:55
in a couple of family, low-income 21:57
setting families. 22:00
We implemented 22:02
the benefits of 22:04
sharing family meals at 22:06
the time of breakfast. 22:09
And we saw 22:11
an extended benefit, 22:13
not only in terms of nutrition, 22:15
the kids were 22:17
more alert while they 22:18
arrive at school and so on. 22:21
We have all these parameters being 22:23
measured, but the 22:26
interaction within the 22:28
family was 22:30
way better. 22:32
Communication with 22:33
parents were very, 22:35
very way much better 22:38
compared to the group that 22:40
didn't implement the breakfast 22:42
as such at 22:44
the time. 22:46
And therefore we can 22:47
see all the benefits 22:49
of family meals. 22:52
We have seen that in 22:53
for adolescents and we 22:55
can see how 22:57
even two or three family 22:59
meals per week will 23:01
lower the risk of engaging in 23:03
drugs for adolescents. 23:05
So that is fabulous. 23:07
That it's something that we 23:10
wouldn't want to miss. 23:12
If we have the opportunity as 23:15
parents to plan ahead. 23:17
I have to confess, I am one 23:18
generally for eating breakfast on 23:20
the fly. 23:21
But you have all convinced me to 23:22
make more time for it, which I think 23:24
is actually going to have to involve 23:26
a lifestyle change. 23:27
Going to bed earlier so that I can 23:29
get up earlier and take my time over 23:31
it. 23:33
But thank you to each of our 23:34
guests, Dr Marianella Herrera. 23:36
Thank you very much for having me. 23:38
I learned a lot in this fantastic 23:41
discussion. 23:43
Dr Courtney Peterson. 23:44
Thank you so much. 23:46
This was great. 23:46
And Professor Alexandra Johnstone. 23:47
Thank you for having me. 23:50
Some fantastic discussion today. 23:51
That's it for this episode of The 23:53
Food Chain from the BBC World 23:55
Service. Do please like and 23:56
subscribe and why not give the 23:59
BBC World Service a follow. 24:00
Happy breakfasting. 24:03

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[English]
Hello and welcome to The Food Chain
from the BBC World Service with
me, Ruth Alexander.
In this episode we're asking should
you eat breakfast, and if so,
what?
Joining me is Courtney Peterson, a
researcher in intermittent fasting
and Associate Professor of Nutrition
at the Harvard TH Chan School
of Public Health in the US.
It's great to be here thanks for
having me. Also Professor Alexandra
Johnstone nutrition scientist
based at the Rowett Institute at
the University of Aberdeen in
Scotland. Hi Ruth, thank you for
inviting me to join you today.
And Marianella Herrera an
associate professor at Central
University of Venezuela and
visiting lecturer at Framingham
State University in the US.
Thank you for having me this is
a great opportunity.
Thank you.
So I have to of course start
by asking you each what
did you have for breakfast today?
I had a
very standard breakfast.
I had
a mini croissant,
some jelly,
a piece of turkey and
a coffee.
That sounds very nice and
a step up from my wholewheat
cereal with milk and a coffee.
Alex, what did you have?
Oh Ruth so I'm not actually in the
UK just now I'm in Paris
so I had
and I had to have, I was really
looking forward to it, a
coffee and a croissant and
I had a banana that I took in my
handbag that traveled with me so
and I've been looking forward it
all weekend to
to enjoy that it was lovely.
Wonderful.
I had a giant fruit smoothie
with bananas a
little bit of almond milk and orange
strawberries and some protein
powder.
Is breakfast the most important
meal of the day or is that a myth?
So we've had a lot of exciting
research over the
past 20 years and I'd say
we've learned the important finding
that not only what
you eat and how much you eat, but
when you eat matters. And we
sort of learned that there are three
core principles that really matter.
So the first is, how long
do you fast each day? And
the idea is that we need a longer
fasting period each night just like
we need a period to sleep to rest
and repair, we need a longer fasting
period to rest and repair.
And through my and others' research,
we found that typically fasting for
16 hours in the day can improve
health. Does that mean it could be a
good idea to skip
breakfast then?
Not necessarily.
But skipping breakfast may not be as
bad as you think. It sort of depends
what you do with dinner. And
I can come back to that.
So the second principle we've
learned is the time of day that
you eat matters. Where it's
better to eat earlier in the day.
So again this suggests that
breakfast actually is really
important because we find your
metabolism is higher earlier
in a day and that's due the
circadian system or your body's
internal biological clock.
And the sort of third principle
we've learned is having meals at
consistent times of the day really
matters, because your body adapts to
what you do on a habitual
basis.
So eating at consistent times your
body's not confused and it can start
timing its internal metabolism to
match that. So you can kind of mix
and match these principles.
So if you eat earlier in the day and
do intermittent fasting that's sort
of the best but you can potentially
skip breakfast and get some benefits,
but it's probably better
to
eat breakfast earlier in the day if
you can.
What are the benefits of
having an early breakfast,
and like how
early?
So your body has this internal
biological clock known as the
circadian system that makes you
better at doing different things at
different times of the day.
So for instance, in most people, they
have their best blood sugar control
in the mid- to late-morning.
So that's going to be around sort of
between maybe about 10 am
to noon time.
And so if you can eat a
large breakfast in the morning and/or
I would even say a large lunch
in the morning, your body's going be
better at metabolising that food.
And what that means is, your body's
going to actually, your blood sugar
levels won't spike as high.
You might burn slightly more
fat. You might burn
slightly more calories from eating
earlier in the day.
Whereas if you had, if you eat most
of your food later in the day, your
metabolism is actually slower later
in the day. So for instance, if you
ate the same, I don't know,
bowl of ice cream in the morning, the
afternoon, in the evening, your blood
sugar levels will spike
significantly higher in the
afternoon and the evening.
So as much as possible it is
better to eat earlier in the day.
And one last tidbit in that area
which is when it really
starts getting dark outside and your
body starts releasing the sleep
hormone melatonin, that actually
quite dramatically raises blood
sugar levels.
I have something to add to that.
Marianella.
Because because it's very
interesting.
Courtney is recommending in fact
that we eat as early as
possible.
And I'm just, but think
how important it
has been historically eating
an early breakfast for
the workers in
ancient times.
Breakfast was developed,
in fact,
to nurture those agricultural workers
that had to start very
early in the morning so they
felt that with breakfast
that would be better and
they could have a
better and
improved jobs
across the day, more effective,
more even more alert
across the
journey.
So that is very interesting,
I find.
So, people's...
even before scientists came along
and studied what was going on inside
our bodies, people just knew
that they needed a hearty meal
in the morning to set them up for a
day's work.
And if you skip
breakfast, what
health problems can arise? Alex?
I think it's first of all I want to
say that there is no
universal definition
of what is considered to be
a nutritional breakfast.
So to summarise that,
this is the working definition that
I use. It's the first meal of the
day that breaks the fast after
the longest period of sleep and
consumed within two to three hours
of waking.
So that gives quite a large
scope, doesn't it, for people to
achieve that.
Now, breakfast skipping is interesting
because my
own work would tend to suggest and
that sort of observational large
scale epidemiological
studies would also support this.
That people who
have a regular breakfast
are actually leaner.
And my own
work would tend to suggest that
having your largest
meal of the day in
the morning period
gives you a much better
appetite control, which
then means it's much easier
to control food intake
later in the day.
So really I am supporting
the meme breakfast like a
king and dine like a pauper.
So for you, then, breakfast
is the most important meal of the
day? So it's really important
particularly for people who
are trying to maintain a healthy
weight and people who were
trying to lose weight.
And I think one positive
message from the work that I've done
is that the time of
day does not, from
our own work, published on cell
metabolism, tend to influence
energy metabolism.
We looked at large
morning eaters and
large evening eaters.
And tried to look at whether it
impacted on metabolism
and energy balance and
we found that weight loss was
identical between
the groups. Now that is a really
important message, because
we see that around 30
to 40 per cent, depending on which
country you're based, of
the population are going to be
involved in shift work, who
are not able to comply
to that advice that Courtney just
shared about when to eat
during the light cycle and to sleep
when it's a dark cycle.
So that's actually a really positive
message to share, that it doesn't
matter what time of day
for losing weight.
That flies in the face, doesn't it, of
some of the
evidence you were talking about,
Courtney, that
actually eating earlier
tends to be better for
your health?
Not necessarily.
So I wouldn't
I wouldn't quite agree with that.
So I actually agree with almost
everything Alex says, perhaps
everything.
So she's done really phenomenal
research in this
work, and there's actually been some
fantastic studies out of Israel
testing the old adage of eating
breakfast like a king lunch like
a prince and dinner like a pauper.
And those studies do report
that when people eat most their
calories for breakfast, they
do lose more weight.
It lowers their blood sugar levels
it lowers their blood pressure
and the fascinating thing is, in
women, it even improves fertility,
which I think is absolutely amazing.
And what we've learned now is some
of these same genes and proteins in
our body that produce these
circadian rhythms are also involved
in rhythms that are longer and
shorter than 24 hours.
And one example of that is
actually the menstrual cycle.
So by optimising our circadian
rhythms, we may also be improving
the menstrual cycle,
men and women's hormones and so
forth.
So we definitely, I think there is,
you know, by and large there
have been meta-analyses finding that
eating early in the day does help
for weight loss.
Now, in the field of intermittent
fasting, interestingly, we find
that if people eat in an eight-hour
period, regardless of what
time of day that eight-hour period
is, they lose weight too.
And you might say, but didn't you
just say you need to eat earlier in
the day? But the interesting thing is,
this is where you go back to those
three core principles.
So if you also have a longer fasting
duration, you can still get benefits
for weight loss.
And so there are a lot of people who
like to do intermittent fasting by
skipping breakfast and they still
eat dinner at a relatively early
time.
So if your doing that, say if you're
skipping breakfast, starting to eat
at, you know, 12pm, and then
stopping eating at 8pm.
Or I guess you'd call it
is that 20 hundred hours
military time, that
you can still lose weight.
And it's about the same, roughly the same
size and effect.
So we're not talking about, you know,
dramatic you're going to, you know,
smash all your weight-loss goals.
But we're talking about losing maybe
an extra two pounds a month, or about
one kilogram a month, or one percent
of your body weight a month.
So both of these things are true.
Now the interesting thing is with
intermittent fasting we don't
really see big blood sugar benefits
or improvements in blood pressure
unless those eating windows are
earlier in the day.
And so it looks like they are for
some aspects of your health.
You really need to eat earlier in
the day to get those benefits.
And that seems to be particularly
true for blood sugar and blood
pressure.
But for weight loss, it looks
to be a little, you know, yes
eating earlier in a day you can get
weight loss benefits, at least from
my read of the literature.
But you can also skip breakfast and
lose weight as long as dinner is not
too late.
There's a really interesting study
out of Japan that showed this. They
found that among people who skip
breakfast, about half skip breakfast
and eat dinner late.
And in those individuals, they had a
much higher risk of cardiovascular
disease and having obesity.
But there's a second group of people,
roughly half the population, who skip
breakfast and eat dinner at a normal
time. And those individuals didn't
have much higher risk
of obesity and cardiovascular
disease.
So what that suggests to me is I
like to look at both breakfast and
dinner as very important.
They're both important.
Because dinner time is sort of, you
know, the time later in the night your
body's metabolism is slower.
So I think it's also very important
that we're mindful of what we do at
dinner time and either we make
dinner a relatively healthy meal or
we move it to earlier in the day.
So those are sort of my suggestions.
Then of course there is the question
of what we should be eating.
And we asked people who follow the
BBC World Service Facebook page,
what did you have for breakfast?
Hi I'm Andrea from New York City and
I'm here to talk about my breakfast
routine.
Almost every morning, I have a
smoothie. Frozen blueberries,
frozen spinach, protein
powder, chia seeds,
ground flax seeds, and almond milk.
And I put it all in this blender.
Sometimes I also add a banana to
it and I put in a big cup
and I drink it all morning long.
It's delicious.
It gets your fruits and veggies in
has lots of fibre and
I love it. It's so good.
My name is Joy.
I'm from Trinidad and
my breakfast consists of
local foods
mainly.
So right now avocados, or as we
call them zabocas are in season.
So zaboca on toast
with pawpaw,
that's papaya, or
pomeracks or five
fingers or whatever fruit is
in season, as well
as a nice big cup of coffee.
It's my breakfast of choice.
Good morning The Food Chain.
My name is Catherine and I'm from
south-east London in the
United Kingdom.
It's about 11 o'clock in the morning
here and I am just about to have my
breakfast my first meal of the day.
I have had some coffee I always have
a coffee first thing in the morning.
So this is what I'd like to call
my lush and healthy homegrown
breakfast.
There are two parts to it.
The first is an
apple. It's a huge pink lady apple
that a friend of mine
and I bought a big bag and split
between us. It's one tablespoon
of whole Greek
yogurt and those two little
raspberries are from my garden.
That's about all I've got left.
Earlier in the year I was using a
lot more Kent strawberries, which
were cheap in the supermarket and I
also had some tayberries that came
early in the year.
If I have nothing else this is what
I have in the morning at the
moment.
Following up from that and this is
what makes it lush is I
have a slice of wholemeal toast.
With a tablespoon of cream
cheese I've mixed in there
a mashed anchovy and some
chives and some small spring onions
again that I've grown in my garden.
I won't have many of those left.
This might be the last set that I
have of the small onions.
The cherry tomatoes also are
homegrown. So I'm very proud of
that. I've had a really good harvest
this year.
And on top of that is a boiled egg
and a little splash of
Worcestershire sauce.
Talk about
breakfasting like royalty.
What an absolute feast, Cath.
I would love to come to your house
for breakfast.
Alex, what does a healthy
breakfast look like?
What do we know about that?
The type of breakfast that we eat is
really incredibly important.
So I know from my own research
that appetite and
satiety are very
much influenced by the
macronutrient composition of the
food that we're eating and that
higher protein meals are more
satiating in the morning and that
allows you to feel fuller
for longer and
are perhaps more rewarding.
Which means you're much less likely
to give in to those food cravings
later in the day where you might
grab ready to eat
high salt, high sugar,
high calorie food
products.
So in the examples
you gave, they sounded very
appetising.
They also included
fruits, vegetables and
whole grains.
That's all really important
aspects of a healthy
diet.
Marianella, what do people typically
eat for breakfast in Venezuela
and Colombia, the Latin American
countries you study?
Well, the typical things
are one thing and the traditional
culinary dishes for breakfast.
So one thing you may have heard
about arepas, which is
the cornbread of
both countries.
And there is a controversial
issue like whether the arepa
is from Colombia or Venezuela.
It happens to be both
in the origin.
And they, you know, we
take it with cheese or
filled with shredded
beef or shredded
pork or shredded chicken.
And avocado.
The use of avocado and black beans
is important.
So that is how it looks
like.
The reality is very different for
the many poor people experiencing
hunger and food insecurity
across Latin America in
general. So we
definitely
will not hear as much.
And if we can see also,
as stated by the latest
FAO report, the Global
Food Security Report, one of
the main concerns across the globe
is food inflation,
which is reflected pretty
much everywhere.
We said we would love
to have healthy meals.
However, can we afford
those healthy meals?
And you can see pretty much across
Latin America,
South East Asia and
Africa, people cannot afford
buying healthier foods or
even their traditional foods.
So it's not only
an issue for
the health.
If we can see, I mean, avocados are
healthy, but they are expensive.
Black beans, even black beans and
rice, which is a very traditional
Latin American food.
They might be
not only
costly,
but it's the utilisation
is compromised, as there
might not be gas
or electricity available for cooking
those.
So we have a problem here
in terms of food security, in
terms of access to foods and
the utilisation of food.
So people neglect
those eating
patterns, not because they
want, because they,
they've been forced to
leave those behind.
Skipping breakfast because they have to?
They have to, and it's
mainly a coping strategy
during emergency. Mothers,
and this is really not a
nice thing, mothers will leave the
children sleeping until
pretty much the lunch hour.
So they skip breakfast and then go
directly into lunch.
And therefore we are saving
money for, of one
meal.
And the evidence says that
children need a good breakfast,
particularly if they are attending
school and therefore
eating at school becomes
an attraction
for keeping and
maintaining the scholar
activities
of the kids.
So because the kids are not only
going to school to learn,
but they're going to eat
at school. Courtney, where
you are in the US, people will
also have been feeling the
effect of rising food prices.
People also have
very busy lives.
And, you know, I
could imagine someone watching
this, listening to this and
thinking, well, how
can I fit in a really well-cooked,
wholesome breakfast early
in the morning?
I've, you know, I've
got to get up, get ready for work.
I've got to get my kids ready for
school. What practical advice
do you have for people who
are time-poor and
maybe short on cash as well?
Yeah, absolutely.
So I think one of the biggest thing
is to plan in advance.
So we find actually what's called
meal prepping or kind of
planning your meals in advance and
making multiple at a time is just a
huge strategy that helps people lose
weight and just sort of eating a
healthy diet.
So I'll give you an example.
You know, so for instance, you might
say every day I'm going to have a
smoothie.
Now what you eat every day might
vary. Maybe some days you'll throw
in banana.
Some days you might throw in, you
know, I don't know, pineapple
or something like that.
Berries tend to be more expensive,
but there are cheaper fruits.
You know, melon actually is a really
cheap fruit and extremely
nutritious. That's sort of related
to squashes in some sense.
And so the mineral content is
actually quite high and you can buy
watermelon relatively cheap, for
instance, and that can feed you for
several meals.
You could probably blend watermelon
with a little bit of berries or
something like that and bring some
of the cost down.
Blending in things like chia seeds
or flax seeds can work.
You can also blend in some yogurt,
obviously avoid the yogurts with
sugar.
You can blend in dairy.
You could make, you know, a
breakfast.
You know, eggs are now really
expensive in the US, but they used
to not be.
You know people get really creative.
They have these fantastic recipes
with slow cooked oats, which you
could just mash with some banana and
make into a pancake.
You could add a little bit of
protein power to that too, to get
some of the benefits that Alex has
talked about.
We've talked about the cognitive
benefits
and the health benefits.
Is there also a general
wellbeing benefit to taking the
time to sit down and have your
breakfast?
We have a wonderful study
that we did several years ago
in Venezuela when we
implemented
in a couple of family, low-income
setting families.
We implemented
the benefits of
sharing family meals at
the time of breakfast.
And we saw
an extended benefit,
not only in terms of nutrition,
the kids were
more alert while they
arrive at school and so on.
We have all these parameters being
measured, but the
interaction within the
family was
way better.
Communication with
parents were very,
very way much better
compared to the group that
didn't implement the breakfast
as such at
the time.
And therefore we can
see all the benefits
of family meals.
We have seen that in
for adolescents and we
can see how
even two or three family
meals per week will
lower the risk of engaging in
drugs for adolescents.
So that is fabulous.
That it's something that we
wouldn't want to miss.
If we have the opportunity as
parents to plan ahead.
I have to confess, I am one
generally for eating breakfast on
the fly.
But you have all convinced me to
make more time for it, which I think
is actually going to have to involve
a lifestyle change.
Going to bed earlier so that I can
get up earlier and take my time over
it.
But thank you to each of our
guests, Dr Marianella Herrera.
Thank you very much for having me.
I learned a lot in this fantastic
discussion.
Dr Courtney Peterson.
Thank you so much.
This was great.
And Professor Alexandra Johnstone.
Thank you for having me.
Some fantastic discussion today.
That's it for this episode of The
Food Chain from the BBC World
Service. Do please like and
subscribe and why not give the
BBC World Service a follow.
Happy breakfasting.

Key Vocabulary

Start Practicing
Vocabulary Meanings

breakfast

/ˈbrekfəst/

A1
  • noun
  • - the first meal of the day

research

/rɪˈsɜːrtʃ/

B2
  • noun
  • - systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions.
  • verb
  • - to make careful investigation in order to discover new information.

health

/helθ/

A2
  • noun
  • - the state of being free from illness or injury

eat

/iːt/

A1
  • verb
  • - put (food) into the mouth and chew and swallow it.

important

/ɪmˈpɔːrtənt/

B1
  • adjective
  • - of great significance or value

principle

/ˈprɪnsɪpl/

B2
  • noun
  • - a fundamental truth or proposition that serves as the foundation for a system of belief or behavior or for a chain of reasoning.

fasting

/ˈfɑːstɪŋ/

B2
  • noun
  • - the act of abstaining from all or some kinds of food or drink, especially for religious purposes.

period

/ˈpɪəriəd/

A2
  • noun
  • - a length of time

repair

/rɪˈpeər/

B1
  • verb
  • - restore (something damaged or broken) to good condition.

benefit

/ˈbenɪfɪt/

B1
  • noun
  • - an advantage or profit gained from something.

metabolism

/məˈtæbəlɪzəm/

C1
  • noun
  • - the chemical processes that occur within a living organism in order to maintain life.

consistent

/kənˈsɪstənt/

B2
  • adjective
  • - acting or done in the same way over time, especially so as to be fair or accurate.

internal

/ɪnˈtɜːnl/

B1
  • adjective
  • - relating to or occurring inside a person's body or mind.

clock

/klɒk/

A1
  • noun
  • - an instrument used to measure and show time.

blood

/blʌd/

A2
  • noun
  • - the red fluid that circulates in the arteries and veins of humans and other vertebrate animals, carrying oxygen and nutrients to and removing waste from the body's tissues.

sugar

/ˈʃʊɡər/

A2
  • noun
  • - a sweet crystalline substance obtained from various plants, especially sugarcane and sugar beets, and used as a sweetener and preservative.

fat

/fæt/

A2
  • noun
  • - a natural oily or waxy substance occurring in animal bodies, especially when deposited as a layer under the skin or around the organs.

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