A Calorie Deficit cannot EVER exist – here’s why!
Published: October 24, 2026
Duration: 13:46
Most people are told that “weight loss = calorie deficit.” But the truth is, a calorie
deficit is a myth. Your body is not a simple calculator where you just subtract
calories and lose fat. In this video, Dr. Jason Fung explains the science behind
why focusing only on calories fails, and why hormones, insulin, and fat
metabolism are the real keys to healthy and lasting weight loss.
When people try extreme dieting or drug-induced appetite suppression, they
often experience side effects like the dreaded “Ozempic face” — hollow cheeks,
sagging skin, and an unhealthy...