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When weight loss or weight control are being discussed the one thing that rarely gets a mention is hunger or appetite. Animals are designed to survive when food is in short supply and hunger is the mechanism that drives them to seek out food. A constantly satiated animal will reach a steady state body weight that is too high. Perhaps all these guidelines and diets would be more effective if they pointed out that a diet that involves losing weight will almost always require the individual to feel hungry some, or even much, of the time. The best way to ensure weight loss is to go to bed every night feeling hungry enough for a snack, but not so hungry that you cannot sleep.
No competing interests
18 March 2015
Paul D P Pharoah
Professor of Cancer Epidemiology
Department of Public Health and Primary Care, University of Cambridge
Strangeways Research Laboratory, Worts Causeway, Cambridge, CB1 8RN