Renastep, Vanilla, 6.7 oz. (200 mL) Bottles. Ready-to-drink formula of protein, carbohydrate, fat (including docosahexaenoic acid — DHA), vitamins and minerals for a diet restricted in potassium, chloride, phosphorus, calcium, and vitamin A for the dietary management of pediatric kidney disease. FOR USE UNDER MEDICAL SUPERVISION. 400 calories in one 200 mL bottle. 6000 calories in a box of 15 bottles.