This is interesting. It might be true.
Weight gain is inevitable after a calorie-restricted diet. The initial loss of weight causes the metabolism to slow to greater amounts than the calorie restriction requires.
The body engages in metabolic adaptation. Also, the hunger hormone leptin increases in the blood stream.
So, the lower ability to burn calories, with an increase in hunger, results in weight gain and then some.
According to Dr. Jason Fung, the way to lose weight is to restrict carbohydrates, because insulin is a fat storage hormone. And the way to keep carbohydrates low is by intermittent fasting and no snacking between meals.
Here is his website .