MET-Rx Xtreme Size Up is a clean mass gain powder formulated to help build and maintain muscle. Each serving contains 687kcal, 54g of protein, 96g of carbs, 4g of fibre, 3g of Creatine Monohydrate and over 30 vitamins and minerals. The primary carbohydrate source is oat flour and waxy maize, as opposed to maltodextrin/sugar in most other mass gain powders which may lead to increased fat storage. Perfect for anyone looking to increase their daily calorie and macronutrient intake Drink throughout the day or after your workout MET-Rx Xtreme Size Up is a clean mass gain powder formulated to help build and maintain muscle. Each serving contains 687kcal, 54g of protein, 96g of carbs, 4g of fibre, 3g of Creatine Monohydrate and over 30 vitamins and minerals. The primary carbohydrate source is oat flour and waxy maize, as opposed to maltodextrin/sugar in most other mass gain powders which may lead to increased fat storage. Perfect for anyone looking to increase their daily calorie and macronutrient intake Drink throughout the day or after your workout
