Is it necessary to have a cheat day during diet ?

Not necessary: While it is not necessary, occasionally allowing yourself to have controlled portions of foods that you are not eating can be helpful. However, the best "diet" is to change your lifestyle because most diets tend to fail after you go back to your old habits. Eat a diet rich in vegetables, fruits, lean protein and healthy fats to lose weight and keep it off. Exercise regularly.Talk to a nutritionist.