Comment by audunw

I won’t defend Robert Lustvigs position entirely. It’s rather extreme. But I think you need to watch his stuff before trying to criticise it. Glucose is the body’s primary energy source. Yes. But not fructose. (And sucrose, which is what’s commonly referred to as sugar, breaks down to fructose and glucose as you may know). His argument is that fructose is processed by the liver. Hence the idea that it is a kind of toxin (not a “poison” if I understand the terms correctly). Everything can kill you with a certain dose. But some substances are not safe - and will damage your body - with any dose. Alcohol is definitely one of those. Fructose? Maybe. I don’t know enough about biology to tell if Lustvig is wrong or not. I’m on the skeptical side still