NutriSystem Diet

NutriSystem is a commercial weight loss plan. Dieters follow meal plans which recommend eating at six different points during the day. The company advertises that these meal plans are low in fat and help "control your carbohydrates". The dieter purchases their food directly from NutriSystem. In addition to purchasing their food from NutriSystem, the company also employs weight-loss counselors and personalized exercise instructors. NutriSystem also sells exercise equipment and nutritional supplements.

NutriSystem was founded about 30 years ago. It is now a network marketing company, as well as making direct sales to consumers over the internet.

Medical Studies

A study published in the July 2000 issue of the American Journal of Physiology, Endocrinology and Metabolism reported that 14 obese postmenopausal women followed the Nutri/System meal plan for 16 weeks. During that time they lost approximately 10.7% of their body weight. The study followed up with 11 of the women after about 2 years. The researchers found that these women had retained about 35% of their weight loss.