Thank you, for at least reading the sources:) At this moment you'll be aware that are other ideas out there. To explain the link with biggest loser, the show used CICO model for the contestants to lose weight. And they did lose weight, So that would suggest CICO is working. But there was follow up and almost all contestants got their original weight back, and others could only eat 1200 calories in a day, that's unsustainable.