In the world of nutrition, the concept of “calories in, calories out” (CICO) has long been touted as the fundamental principle of weight management. The idea is simple: if you consume more calories than you burn, you gain weight; if you burn more calories than you consume, you lose weight. Read this article for free: Already have an account? To continue reading, please subscribe: * In the world of nutrition, the concept of “calories in, calories out” (CICO) has long been touted as the fundamental principle of weight management.

The idea is simple: if you consume more calories than you burn, you gain weight; if you burn more calories than you consume, you lose weight. Read unlimited articles for free today: Already have an account? In the world of nutrition, the concept of “calories in, calories out” (CICO) has long been touted as the fundamental principle of weight management. The idea is simple: if you consume more calories than you burn, you gain weight; if you burn more calories than you consume, you lose weight.

All diets work by abiding by this rule, despite claims made by charlatans promoting other schemes not relevant to the context of this column. Despite being a big believer in controlling calories for weight loss — I have roughly 1,600 client case studies to lean on to this point — the concept is an oversimplification. Pickled Stardust / Unsplash Consume more calories than you burn, and you’ll gain weight.

The truth is, the human body is complex, a.