Comment by gunshai

When I want to lose weight I do this one simple thing ... I stop eating as much.

Fasting really isn't all that difficult once you train your brain around it.

You simply can't gain weight if you are consuming less. You don't need a triple PhD to understand the law of conservation of mass.

If you want to read something fairly extreme I suggest the following.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2495396/

Now this isn't a guide on how to lose weight, but it should give everyone some insight into what the human metabolism is capable of.