NutraBio Mass Gainer XL

NutraBio Mass Gainer XL is a high calorie, premium mass- building supplement designed for muscle growth and recovery, providing over 1,100 calories, 50g of protein, and a 4:1 carb-to-protein ratio per serving. It is designed to support, not just mass, but lean muscle growth, containing fast-and-slow digesting proteins and MCTs for sustained energy.