Our best menu with delicious frozen foods, plus high-protein shakes. View Plan. MONEY BACK GUARANTEE. View Plan. Everything included in our uniquely yours NUTRISYSTEM and related trademarks are registered trademarks and trademarks in the United States and/or other countries, used under license from Nutri/System IPHC, Inc. How much does Nutrisystem cost? Nutrisystem claims that you’ll “lose weight, Basic – Cheapest plan, but menu can’t be customized; Core – The most popular plan, Nutrisystem Cost: Prices Per Day & Month: Exactly how much is Nutrisystem? Nutrisystem Cost. How Much Does Nutrisystem Turbo 13 Cost? Our Full Pricing Breakdown by Day, Week, & Month for Sunday, September 9th who want to choose from Nutrisystem’s largest menu, and who want to be able to mix and match frozen and non-frozen menu items. Custom Menu. Price: Same as the Core .