Story by Delia A. Hammock, M.S., R.D. We're going to say this right up front — sticking to a 1,300-calorie diet nutrition plan for a week is not going to be easy, but if you truly feel you want ...

Since most people need to consume between 1,600 and 3,000 calories to maintain their weight, trying a 1,200-calorie diet plan creates a significant calorie deficit that can promote rapid weight loss.

Reverse dieting involves slowly increasing your calorie intake after stopping a calorie-restrictive diet. This method allows you to add more calories to your diet while boosting your metabolism ...