Medifast, Inc., through its subsidiaries, manufactures and distributes weight loss, weight management, healthy living products, and other consumable health and nutritional products in the United States and the Asia-Pacific.

The company offers bars, bites, pretzels, puffs, cereal crunch, drinks, hearty choices, oatmeal, pancakes, pudding, soft serves, shakes, smoothies, soft bakes, and soups under the OPTAVIA, Optimal Health by Take Shape for Life, and Flavors of Home brands.

It markets its products through point-of-sale transactions over ecommerce platform. The company was founded in 1980 and is based in Baltimore, Maryland.