As of 2015, Walmart does not sell CB1 Weight Gainer. Walmart does sell weight gain formulas from ABN, MRM, Naturade and Champion Performance, among others.
CB1 Weight Gainer is a health food product designed to promote appetite and good metabolism in people who experience difficulty gaining weight and have a high metabolism or poor appetite. CB1 Weight Gainer is promoted as a safe and natural supplement containing herbs, vitamins, minerals and isobutylamides. It does not contain steroids or any other drugs. CB1 Weight Gainer can be purchased directly from the manufacturer website, along with a variety of other CB1 products.