Dr Fung is 100% right about insulin and hormonal factors in weight loss.

I had never been committed to diets or sports before. I once tried the most common way to lose weight: eat less, move more. I dieted, I took up some minor exercise and walking for a few weeks. My weight did not change. Similarly, I tried to diet one summer when I was busy waiting tables 6 hours a day 5 days a week. My weight still did not change. Now with intermittent fasting I'm losing an average of 2 kilos a months by just eating in a 4-hour window and being a couch potato. It's either sorcery or insulin. And my bet is insulin.

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Completely agree with you on this!

I also believe there is a circadian element to understanding hormones and an element revolving around gut microbiome and reducing exposure to lipopolysaccharides . Good on you nonetheless!

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>Now with intermittent fasting I’m losing an average of 2 kilos a months by just eating in a 4-hour window and being a couch potato.

>It’s either sorcery or insulin. And my bet is insulin.

No, you are just eating less in those 4 hours than you were previously eating on your other diets. Lowering insulin could help reduce food cravings but it will not result in a difference in total weight loss. Many studies have shown that weight loss is unaffected by the insulin response to food. This highly-controlled study found similar weight loss between diets that had a 2x difference in insulin responses. I also recommend this recent review covering more research on insulin and weight loss.