Starch, Milk and Alcohol: How Have Our Genes Adapted? | Giles Yeo | TEDxCambridgeUniversity
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- Опубликовано: 30 май 2024
- Humans are like cockroaches, we adapt when we have to, including to changing nutritional demands post agriculture.
Giles Yeo has 20 years’ experience studying the genetics of obesity & brain control of food intake. He got his PhD from the University of Cambridge in 1998 and his currently focuses on the influence of genes on our feeding behaviour & body-weight. Giles is also a broadcaster and author, presenting science documentaries for the BBC’s ‘Horizon’ & ‘Trust Me I’m A Doctor’. His first book ‘Gene Eating: The Science of Obesity & the Truth About Diets’ was published in December 2018.
Giles Yeo has 20 years’ experience studying the genetics of obesity & brain control of food intake. He got his PhD from the University of Cambridge in 1998 and his currently focuses on the influence of genes on our feeding behaviour & body-weight. Giles is also a broadcaster and author, presenting science documentaries for the BBC’s ‘Horizon’ & ‘Trust Me I’m A Doctor’. His first book ‘Gene Eating: The Science of Obesity & the Truth About Diets’ was published in December 2018. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at www.ted.com/tedx
How does this only have 12k views? The youtube algorithym is broken.
all of giles yeos talks are great
I agree! This video is amazing. Great content with perfect storytelling.
Love listening to him. Excellent presentation.
and not even to mention the power of cooking. It's basically like pre-digestion.
Outstanding information and delivery
Excellent presentation and a few chuckles along the way
Thanks Dr Giles for excellent presentation👍👍👍💝!
This is just amazing!! I was reading his book gene eating that i borrowed from a friend. Just wanted to look him up. Very informative!
Always love your talks and explanations!
Great lecture!
Just ordered his book. It’s only 2.99 on kindle
It was a good presentation Yeo.
Fascinating! I am so interested in the history of food because I've seen documentaries made by archaeologists. All these fad diets grab a bit of incomplete information and run with it.
Yep, Nice comment 👍.
People ate as much as they could afford then they starve when there was nothing.
All talk about "How much?, What?, When? Blah..." Wasting time people with FULL Stomach.
Lactose intolerance is not present when drinking raw, whole milk. The heat in the process of pasteurizing destroys the enzyme lactase, leaving only lactose, the substance that is at the root of lactose intolerance.
It intrigues me that this is why we use alcohol for hand sanitisers.
A chemical that kills germs pretty much has to be a poison. But as non-arboreal primates we're _more_ resistant to alcohol than most things, so we can use it to poison viruses, etc. relatively safely.
Whereas methanol (for instance) would also kill germs but be too likely to poison us.
Alcohol besides having antiseptic abilities like killing germs, also helps to keep our body warm. Hence in northern countries where it can gets really cold, alcohol is very popular.
alcohol poisons every cell of our body - but yeah, we are extremely adaptable to the stuff, apparently.
As dig person I recommend you to put your dog on diet where you mainly give him/her meat, especially organ meat, and bones with morrow etc. and just observe how it's hair and health improves. Yes dog adopted to starchy food but it's not optimal for them, and prices of some of this stomach fillers are just ridiculous.
This adaptation simply gave dogs better chance of survival.
Similarly bears who are omnivores and can survive on any food, but if have a chance they are mainly predatory creatures.
Humans are the same. We are omnivores and opportunistic beings, and that's why we survived.
No way human adopted to modern wheat which consist like twice the amount of chromosomes compare to it's original form. This is causing wheat to have way more types of proteins which our body can't digest.
I lean towards theory that this is not gluten which is causing gut issues but rather these new proteins made by modern wheat, if you can even call it a wheat.
Not even gonna mention all the flavour enhancers, fillers, preservatives and Round up.
An adaptation might give you easy access to energy, and give you a reproductive advantage, but still reduce your total life span. The ability to handle starch seems to be directly related to someone getting diabetes in later life through the hormonal effects of insulin spikes the starch induces. With regard to the quality of life, it is certainly worth investigating what the effects are of where you get your energy from, adapted or not to starch, milk and/or alcohol.
I wholeheartedly agree with the first part of what you say,
sometimes an adaptation is just a backup system.
Relying on it may shorten your lifespan.
It's the quality of the foods that counts. Plain milk is far better than chocolate milk. Whole grain wheat is better than bleached superfine white flour. Fermented alcohol is better than distilled alcohol.
@@SuzanneU Actually it is better for you to drink vodka than to drink beer (assuming you consume the same amount of ethanol). Vodka has less sugar so it won't cause insulin resistance (and ultimately diabetes) as quickly as beer will.
When we look at the chemicals, additives and preservatives, and antibiotics we can see that the problem isn't food itself but what is Done to it. I refer to the book Metabolical by Dr Lustig. Consider how these diseases are exploding now but they were rare up until the 1900's.
4:06 😅
❤️❤️❤️
paleo fans should spend 4 hours on the treadmill a day
Why 4 hours on a treadmill when only 1 hour suffices? Add intime-restricted and also intermittent fasting and you have the holy grail.
@@grubbetuchus cause all about respecting the old way of life.
Just because you can metabolize something, doesn't mean it's healthy...
True.
You're right but it does mean you can survive when there is no other option.
Very true. Humans can metabolize sugar but high-sugar foods like modern fruit varietals aren't necessarily good for you.
Also I like milk and alcohol...it's awesome! More so when mixed together...the perfect drink...also a whole chicken! A whole roast chicken...a half gallon of milk ..and a lot of alcohol...it's the perfect meal!
ARRESTED DEVELOPMENT? I'd guess 5-years-old...and one with low intellect.
@@elizabethk3238 At least a five year old can write complete sentences...
Perfect candidate for white Russians.
Name another mammal that drinks another mammals’ milk
However there is no such thing as essential carbohydrates, only essential amino and fatty acids, apart from the essential micronutrients like Fe, Mg, K, vitamins etc.
The vital requirement of glucose intake is zero.
@Peter Rabbit - Pianist-Composer ♫ You can argue that dietary fibre is an important auxiliary component which supports the digestive tract.
However the human body has no enzymes to break it down and metabolise it.
The fact that foods high in fibre contain a certain amount of net carbs is true but irrelevant for the fact that their sugars and starches are not essential for the human body. They are more like a byproduct, energy storage for plants.
No human *needs* to eat sucrose, glucose, fructose, starch (which is broken down to glucose) etc, hence all the carbohydrates which *can* be metabolised. Those are non-essential.
They have no vital structural functions in body cells unlike amino and fatty acids from proteins and fats.
The human body can store only about 2000 kcal of glycogen which can be converted to glucose by the liver. However this is only a short-term energy storage and has no other vital function.
A human body can function perfectly without any stored glycogen, hence no glucose (or derivative) intake is required.
Btw, the only cells which do require glucose are red blood cells. However the relatively small amount they require can be generated by the liver through gluconeogenesis from protein intake.
All other cells can run on ketones including the brain.
@Peter Rabbit - Pianist-Composer ♫ Many wise men say that you should always get familiar with scientific facts. Denial of the facts will get you nowhere.
@Peter Rabbit - Pianist-Composer ♫ The mono and oligosaccharides are essential for plants only, not for humans. The human body can generate glucose and other sugars from proteins and fats.
You are putting the cart before the horse.
Sugars and starches could be completely removed from the cellulose part of the plant and it would be enough for the intestinal microbiome to do its job fermenting the fibre, making essential fatty acids for instance.
There is no vital requirement for the human body to absorb sugars and starches, as little as there is a vital requirement to absorb alcohol.
@Peter Rabbit - Pianist-Composer ♫ Yes you are right about the fibre part but keep the sugars and starches out and we have a mutual agreement.
@Peter Rabbit - Pianist-Composer ♫ I'm not trying to make you believe anything. The facts speak for themselves.
This is such a mooooood
Before humans became meat eaters, they were gatherers of wild fruit and berries, before the stone age of weapons to kill game. So if you're looking at the earliest eating habits, they would be plant based rather than animal based. That would have been our first adaptation. Meat based paleo diet doesn't go back far enough
Vegan diet is lacking nutrients essential for survival. It appears we were never made for vegan diet - unless we somehow lost some genes.
thats why our appendix regressed. look at gorillas or cows, the have insanely huge organs for devouring plant matter. humans dont.
He never changed his shirt since that BBC video
I like the idea of owning no more than you need.👍🏽
He says mil drinking isn’t bad for you but that’s a misnomer . Having the ability to digest milk is to be able to eat more calories and utilizing them but biology is worried about reproductive success And that’s it. So even having lactase does not mean it cannot increase your risk of other diseases correlated with dairy intake when you’re 50-90 years old
You are missing the line where he says that the total amount of calories from an animal is increased. In a world when every calory made a difference to survival, it was vital.
In our calory rich first world armchair using aging obese population... yeah maybe not so good.
He has a PhD and has researched this his whole life. He’s been published, written books, and given presentations on his research. But sure it’ll listen to some teenager online
Everyone above me sucks at spelling!
Sir, it is already good visible numerous signs of pre-diabetes with mild obesity on your body, from which I suppose that perhaps you haven't adapted so efficiently to digesting starches and other such things, to eating those "food-like creations" that didn't exist in the Paleolithic...
Also, not all trends in paleo abstain from fatty meats. (Neither do I, in fact...! I specifically follow the Carnivore diet, which I think is a subset of paleo! Oh, and I eat meat and offal raw...) The modern paleo trends specifically recommend the consumption of FATTY meat, because to maximize the benefits of nutritional ketosis...
spot on.