Ensure is a liquid nutritional drink created by Abbott Nutrition in 1973. It aims to change its image from a drink for the elderly to one for people of all ages. Ensure comes in various flavors and types, providing a source of balanced nutrition. It competes with brands like Boost, Carnation Instant Breakfast, Special K Protein Shakes, Atkins Shakes, and Glucerna. Ensure's target audience is women ages 25-34 who are looking for an easy way to meet their nutritional goals.