references
  
      American Journal of Clinical Nutrition: "Leucine Supplementation of a Low-Protein Mixed Macronutrient Beverage Enhances Myofibrillar Protein Synthesis in Young Men: A Double-Blind, Randomized Trial"
    
      University of Rochester Medical Center: "Leucine"
    
      American College of Sports Medicine: "Protein Intake for Optimal Muscle Maintenance"
    
      Journal of the International Society of Sports Nutrition: "International Society of Sports Nutrition Position Stand: protein and exercise"
    




For optimum muscle growth, experts recommend taking a 2.5 gram dose of leucine after exercise.

Image Credit: Dziggyfoto/iStock/GettyImages

Image Credit: Dziggyfoto/iStock/GettyImages

  • What Is L-Leucine?
  • How It Works
  • How Much You Need
  • Should You Take Supplements?
  • How and When to Take Leucine

10 Foods High in Leucine for Strong Muscles

If you’re not sure whether you’re meeting your leucine — or overall protein needs — working with a registered dietitian can help you take a closer look at your diet and make any adjustments needed to reach your health, fitness and muscle goals.

      American Journal of Clinical Nutrition: "Leucine Supplementation of a Low-Protein Mixed Macronutrient Beverage Enhances Myofibrillar Protein Synthesis in Young Men: A Double-Blind, Randomized Trial"
    
      University of Rochester Medical Center: "Leucine"
    
      American College of Sports Medicine: "Protein Intake for Optimal Muscle Maintenance"
    
      Journal of the International Society of Sports Nutrition: "International Society of Sports Nutrition Position Stand: protein and exercise"