Lean Muscle Weight Gainer. Superior muscle building formula- formulated for "hard gainers", builds lean muscle & accelerates metabolism, perfect for keto dieting, pre-contest prep, & re-feed cycles, satisfies hunger and food cravings with delicious milkshake flavor, low carbohydrates, low sugar, low glycemic index, zero lactose, zero aspartame, zero trans fat, gluten free. MuscLean is changing the game on traditional weight gainers. Metabolic Nutrition recognizes that it is not "weight" that you want to gain, rater, you desire to develop lean, hard muscle... all the while, minimizing the accumulation of fat. While traditional weight gainers simply pack on the calories with empty carbohydrates/sugars, MuscLean takes a better approach by combining proven science with macro+micro nutrient technology to help you maximize lean muscle mass, gain muscle weight, improve metabolic functioning, increase strength, while minimizing body fat with a clean calorically dense formula that has very little carbohydrates. MuscLean stimulates muscle development greater than any other weight gainer, making it a critical must have supplement to all consumers who are looking to preserve or maximize their lean muscle mass.