Medifast is
a physician-supervised very low-calorie diet program of fortified meal
replacements providing 450-500 calories per day. Medifast also provides a
low-calorie diet of approximately 860 calories/day for those not on the very
low-calorie diet. Medifast also offers Take Shape, a product line that can
be used as part of a weight-loss (1200–1500 kcal per day) or weight
maintenance program. The Take Shape program does not require medical
supervision.