Watched enough to know it was about IF, where IF is defined as anything under "normal" calories apparently. IF in general is nonsense, since the body doesn't react that fast -ever-. You are not eating normal for 5 days and then getting magic health benefits for only eating 600 calories on the 6th. That's dumb. This guy's weight loss is directly attributed to caloric deficit and not IF, and his health benefits mirror that. The film conflates it with the powers of fasting. Which are generally nonsense.
I'm glad he interviewed my favorite doctor, Dr. Longo. The leading gerontologist who also sells fasting "kits" from his foundation. All his studies so far basically focus on cancer patients or mice, and long term fasting (not eating for 48+ hours) has a similar effect to chemo therapy on both in his studies. You know, chemo therapy, the shotgun poison blast to kill cancerous cells and makes you feel like complete shit. Not eating for a day every couple of days? Might train you to deal with not consuming lots of extra foods, but unless you're super active you're not burning through your caloric stores during those days and the baseline is still caloric restriction.
Hold the phone; reducing your calories over the course of a week means you don't gain as much weight and in some cases lose weight? Tell me how this magic theory was formulated.
mkopec can probably add something to this conversation, since I think he was the major proponent on the other site. But IF is retarded, and most people who think they are practicing IF in the first place are just practicing caloric restriction but instead dealing with timing to some minor degree. Skipping breakfast is not fasting. It -is- fasting if you skip lunch, dinner, and all food in between, for 24+ hours. And even according to Valter Longo's own studies, his theoretical benefits only kick in after 48+ hours.
