Reason #3: Yo-yo diets make you put on more weight in the long run.
Yo-yo dieters tend to regain all the weight lost, and then some. The mechanisms behind this involve complex physiological and psychological factors: changes in fatty acid synthesis, increased fat storage, and reduction in energy efficiency all contribute to the yo-yo effect.

Simply put, the resulting effect is exactly the opposite of what the dieter intended to achieve.

When normal eating habits resume, and the body has reduced capacity to burn the excess calories, weight is rapidly regained. What's worse, your new body profile will have a higher proportion of fat, even in cases where the weight has remained the same.

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