Nutrisystem shares have plunged almost 14% this year and now sport a dividend yield of 6.7%, but that might be more an example of yield trap than legitimate value proposition. Nutrisystem is known for weight-loss programs and its Glycemic Index diet. Far removed from the sexy biotech universe, Nutrisystem sells monthly food packages of shelf-stable and frozen foods, putting the company in direct competition with the likes of Jenny Craig and its diet plans equal a rivalry with Weight Watchers