Question: what are the risks of a low calorie diet?
Answer: By Lana Bandoim. Extreme diets that drastically reduce calories can be dangerous. ... 
Not Enough Nutrients. When you limit your diet and eat fewer than 1200 calories per day, you usually do not get enough nutrients. ... 
Gallstones. ... 
Extreme Fatigue. ... 
Muscle Loss. ... 
Heart Problems. ... 
Memory Problems.