It takes guts and determination to reduce your weight and manage it for good. But, just like the Biggest Loser contestants and thousands of other Biggest Loser customers have proven, success is within your reach. Meal replacements are used to kick-start your weight change or help break unhelpful habits that lead to weight gain. Each meal, be it a shake, soup or bar, is specially formulated to be rich in nutrients and vitamins so you feel satisfied and get the nutritional balance you need.