The essence of the Optifast diet is to replace your daily meals for liquid diet. It is targeted at people who strive to lose a considerable weight during quite a short period of time. Optifast treatment is high quality meal replacement formulas developed by best physicians. This diet is based on strict control of portion sizes, precise amount of calories, high nutritional value, and has been shown to help people stick to their diet plan. Try these delicious Optifast 800 Meals!