Diet Plan for Obesity Obesity is a condition resulting from accumulation of excess body fat and this is becoming a major health concern which increases the risk of several other Health issues.It is evaluated by body mass Index and If BMI is 30 or higher than thirty then the person is obese .Low fat, low carbohydrates and moderate protein diet is very helpful in loss of excess fat. The diseases caused by obesity include Diabetes, Heart disease, Arthritis, Cancer, liver