This is such a well done presentation, you can tell that he put a lot of effort into delivering a complete and coherent message.

Clear presentation regarding the American diet which is exported and unfortunately well adapted all over the world with disastrous consequences for the health of human beings.

Amazing presentation! This guy is awesome

Very impressive to be so young and is a Dr.

Go STEPHAN, you're onto something huge with food reward. not everyone will understand what you're getting at right away but eventually the RIGHT ideas will catch on with the right, informed people.

Exposure to Guyenet has been a recent fascination of mine. It has started to influence what goes on my plate, though I was on that track anyway. However, the area that I think he skips probably because it's harder to find reliable data on is the increased frequency of eating events with the rise of snacking, especially of manufactured foods. In long-lived and slim cultures, in addition to a lack modern engineered foods, adults at least do not depend on snacking, but on discrete and mostly shared food. Slim INDIVIDUALS may snack, but slim cultures don't, which is likely another major reason why such a large percentage of them remain slim. Some French interviewees said there's no mystery in why Americans are fatter: they eat all day long and they eat frequent sweets, which is often part of snacking, though not as much as of salty, fatty foods. Slim cultures end up culturally negating the instinct of opportunistic eating. A colleague who retired to Italy on a visit to the States said he has lost 15 pounds without aiming at it just because it's so rare to find opportunities to buy food everywhere he went. It's virtually impossible for the average human to gauge how much s/he's eating without tedious accounting of any eating between meals. I lost 40 lbs. over the course of a few years by greatly reducing eating frequency and limiting meals to one plate.

I'm really glad he mentioned that people used to get most of their fats from animals. It'd be a shame for someone to misinterpret what he said and think that they gotta switch to low-fat foods.

Thank you Stephan, very nice summary of what's happening to our society. I keep thinking of that old movie Soylent Green. The things we are consuming need to be public knowledge, not buried in "hidden" lists of ingredients to "protect" company secrets. These company secrets are killing us.

This was wonderful. I have recently read the book The Calorie Myth by Jonathan Bailor and am now making my foods at home and NOT eating out. As a personal trainer, this is vital information. Thank you.

@swdw973 It's healthier to use lard than an extracted oil. There is nothing unhealthy about lard as a fat for cooking or baking.

Excellent presentation!!!

Brilliant presentation.

I'm not sure how they can accurately predict that the average caloric increase is 425 calories a day, but I personally think that is underestimated - big time. I've lived through that time, and I would say most people eating out (which is most people) consume 400 extra calories per meal- portion sizes have increased year by year. Snacking in the cubicle, no exercise - daily increases must be over 1000 calories, easy.

great presentation!

Eliminate processed foods, cook on your own, use simple and fresh ingredients, and stay away from starches and sugars. I have been on a ketogenic lifestyle for the past year, and I feel great. Dropped a lot of weight, and reversed my type two diabetes. For me Keto did wonders. Hope more people look into it!

Very interesting. So how do we teach kids to each healthily when we're up against a big advertising machine? We need to teach them to really understand an advertisement - to ask the questions.. what's the real message behind what I think I'm seeing.

Fantastic!

Great talk.

nice talk! could have shown a pie chart with mortality causes from disease then and now to top things off :)

Awesome talk, but I wanna buy him a new tie SO badly.

Great presentation, thank you very much. May I buy you a new necktie? :)

Go to his blog and read up. IT would take a few hours to go over the Biochemistry. Its easier to just give a general overview than bore us with the details.

No mention of the pharmaceutical industrial complex and their contribution to condition branding and engineering "incurable" diseases that require medication for life?

What was NOT included and should be an integral part of this is the change in the amount of calories BURNED. During his time frame, we went from a low technology, agrarian society requiring a lot of manual labor at home and work, to a technological society where work requires little manual effort, whether at home or on the job. And in the 80's is also when computers and entertainment variety (cable, etc) became widely available.

I liked it! Reminds me of the movie 'Fed Up' which is a great documentary on the food industry..fats, sugar etc... what may be missing is that in the 60's the genetically modified foods came out...(Monsanto) ... along with many food alergies, cancers etc.

Just boring statistics and stating of the obvious while being boring. Why didn't he give us any ideas on how to prevent those statistics from worsening...?

I think it is pretty clear that the rise in obesity is an emergent phenomena. It cannot be blamed on any one ingredient, company, or food. Trying to put all of the blame on one element in the diet is futile. Stephan opens up exciting new approaches to treating obesity.

Basically- research and study food and the diet.. Learn how to cook at home and do not go out to fast food.

Baby's First Public Speaking.

Education about how harmful the engineering of our foods and marketing unhealthy foods is long over due. It is time that the MDs, DOs, and RDs recognize this and educate their patients about it. I think Ensure and the like fall into the poor ingredient category. Let's get our geriatric patients off of engineered shakes.

Man, that was how not to deliver a TED talk. I'm all about the information that Stephan was presenting, but that was the driest delivery I've seen in a TED.

@empyreanbeing Or at least stop subsidizing the corn syrup. Corn gets $8 billion in subsidies a year, driving the excessive use of high fructose corn syrup.

After watching this, I'm surprised that we are still alive. It seems as if we're trying to poison ourselves out of existence.

Stephen looks like Ethan Hawke.

@empyreanbeing Because it's not the governments job to police consumer stupidity. Plus there are healthy uses of both- oil instead of lard in bread for example.

uhh, he’s kinda cute... ;)

Flawed graphs. 1 can coke contains 39g sugar, thus 1820 intake figures to be 7.8g per day based on 1 can/5days. Today's intake (@1can/7hrs) = 133g per day. This is 17x more per day. NO WAY did carb intake drop from 57% to 49% from 1909 to 1999. Moreover, this doesn't take in account the increased carb density from processed flour products. Guyenet provides lessons in applied nonsense in his blog articles (which brought me here.) He and Taubes do not understand the 2nd law of thermodynamics.

Why are you people complaining about his tie? He could wear a potato sack and look amazing. Not the best design choice of tie, but it does match the set and clothing