A study has evaluated the effects of alternating fasting days and ‘feasting’ days (researched by the American Journal of Clinic Nutrition). Over the 3 week period, the men and women participating in the study lost an average 5 pounds (some of it fat).
…every other day for 3 weeks the men and women subsisted on calorie-free beverages and sugarless gum. On the days in between, they ate whatever they wanted.
However, proving what we already know:
…”most people were not happy” — a major problem being the crankiness that erupted on the fasting days and did not abate over the 3 weeks.
It is common for starvation diets to bring about irritability and fatigue. There must also be the risk of catabolism (loss of muscle).
See more about the Every Other Day Diet here.