369: Dr. Jason Fung - Stop Snacking & Start Fasting


You don't get the kidney disease and that's really the only good way to treat the disease yet as a medical profession nobody was interested. In weight loss and to a large extent nobis really interested. We started gave up this entire concept which is so important. So fundamental to human health because this is what we face in North America today, lot of problems of of touchy diabetes and obesity, and we gave it up to like you know weight watchers, Jenny Craig and all those sorts of things it's like that's fine but it's really an important subject. So that's when I started to look at the question of weight loss and When I looked at it was clear that there wasn't a lot of really good thinking in the area. The entire field was dominated by sort of calories in calories out theory that is you know we've all heard this before you know it's just a matter of eating fewer calories and exercising more like if you actually think about it for a little bit, it actually makes very little sense that is you know it's a very sort of simplistic argument because the question is not whether people are eating more calories or burning less calories. The question is sort of wire the eating mark how And why are they not burn as many calories and it turns out that the real answer to why we're gaining weight is more likely related to our hormones. Then the number of calories were eating as an example, you can eat two different foods of the same. The same number calories. So you could eat broccoli or you could drink Soda Strictly Soda. Well, it's very easy to gain weight if you're drinking soda. But almost nobody gained weight eating Broccoli. So the point is that for two foods that are the same calories they're completely different in the minute you put it in your mouth. The hormonal response to those two foods is completely and utterly different. So if the hormones different the hormonal instructions that we deliver to our body or going to be completely different. So a simple example as tidy if you drink sugary soda, there's almost no sitadi signalling. You don't feel full from drinking sugary soda yet if you eat a large number of calories of Broccoli or steak or any sort of real. Natural food you will get full. So that's a simple example of how the body responds to these calories to foods of equal calories but totally different response from our bodies, and therefore what's important is not just the number of calories that this sort of hormonal response and that's you know that's what I talk about. A lot of is this sort of trying to get to the root cause of what causes weight gain rather than this, very, very simplistic sort of calories in calories out model which to be honest hasn't really helped anybody that is it's in the standard sort of advice for. Doctors and Dietitians everybody to count your calories yet it almost helps nobody. So you know here we have a treatment which is counting calories and doing calorie restricted diets, which has a failure rate's probably on the order of ninety nine percent. So it's like why would that be standard treatment if the failure rates like ninety, nine percent I, it's not just my opinion you see it in the numbers like the numbers don't lie there's more and more obesity out there people try to lose weight they count their calories and they don't lose weight. So it's not a very good strategy from all sorts of from all angles or let's Take Your example era of the soda versus the Broccoli and get a little bit deeper into the weeds here, and you mentioned the hormonal differences in the body when those different foods will call them are consumed. So take us through those two examples and talk about the hormonal response in each. So if you eat say any real food. So Broccoli or steak or whatever. These are foods that our bodies have been sort of equipped to handle. We know what these foods are and we've always eaten them. So when you eat that food, so there's usually a combination of carbohydrates, proteins and fats, and it induces certain hormonal responses. So the proteins in the fats, for example, will know stimulate us to produce things like peptide Y Y and closest to kind of tidy hormones in a very powerful. That's why when you go and eat a very big meal, for example, you know the steakhouses that give you a free steak if you could eat a sixty out steak or whatever. They don't give away a lot of free state because when you're trying to eat at your body, won't allow you. So these tidy signals are very powerful if you try to eat Mario throw up. So those are some of the responses when you eat something like cookies or. Or you know soda or something you almost purely carbohydrate sugar and other carbohydrates in which yet is very, very strong insulin fach. So insulin is essentially the hormone that tells our body to store that energy and the way that we store energy is amongst other things audie fast. So when you eat a food like steak or something or Broccoli then or solid what you're GonNa get is sort of this make Sigli, a little bit of insulin, which is going to store some of the energy, but it's also gonNA use a lot of that energy and you're also going to feel full after a while and then you're gonNA stop? Eating.

Coming up next