1. Protein Deficiency

Intermittent fasting often makes it challenging to meet daily protein requirements. Experts recommend consuming about 1 gram of protein per pound of target body weight, which becomes difficult when limiting eating to a short window. Adequate protein intake is crucial for preserving muscle mass, boosting metabolism, and promoting fat loss.

1. Binge Eating Behavior

Restricting food intake to a small window can encourage binge eating when it's time to eat. This behavior can lead to consuming more calories overall and potentially gaining weight. The quality of food choices may also suffer as people try to fit all their daily calories into a shorter period.