Dr. Jason Fung

Why would you expect any different?

So neurotransmitters are a type of hormone that they're specific to the brain.

So you see that antipsychotics, antidepressants, very commonly cause weight gain.

they don't restrict or enhance calories.

They affect the hormonal systems, the neurotransmitter, or it's called the neurohormonal systems.

And that's pushing you up or down, right?

It's not just that you ate more or more food was available, right?

That's simplistic sort of,

Thinking, there's this body fat thermostat.

So you need to control that in order to lose weight on a long-term basis.

And the important part about it, of course, is that different foods are going to stimulate different hormones, right?

You can use it as a drug, right?

And that's very nice from an experimental standpoint, but obviously not something that we would highly recommend, although Ozempic is a good example.

But the foods are going to change, right?

Some foods stimulate a lot of insulin, especially the ultra processed foods, and some foods don't.

And the only thing that means is that some foods are more fattening than other foods, right?

So cookies are more fattening than broccoli.

Why is that controversial, right?

For the same number of calories, why would you think that 200 calories of cookies is the same as 200 calories of broccoli?

The hormonal changes are different and therefore whether your body stores it versus burns it, that whole shift, the partitioning is completely different.