Smart for Life, Inc. acquires, develops, manufactures, operates, markets, and sells nutraceutical and related products in the United States and internationally. It offers natural health and wellness meal replacement products, including nutrition bars, cookies, soups and shakes, vitamins, and supplements under the Smart for Life brand; dietary supplements; and nutritional products, including whey protein isolate powder, tablet supplements for joint health, nitric oxide, post workout blends, Omega-3 supplements, and pre-workout supplements under the Sports Illustrated Nutrition brand for athletes and active lifestyle consumers. The company also provides various nutritional products, including antioxidant rich supplements, plant-based proteins, alkalizing nutrients, and weight management products. It sells its products through online market platforms.