Multiple clinical trials and modeling studies demonstrate that a well-planned vegan diet can provide sufficient protein and essential amino acids to support normal health, muscle protein synthesis, and athletic performance just as effectively as an omnivorous diet.
Evidence for · 7
Vegan and Omnivorous High Protein Diets Support Comparable Daily Myofibrillar Protein Synthesis Rates and Skeletal Muscle Hypertrophy in Young Adults
2023 · cited by 46
Demonstrated that a high-protein vegan diet supports comparable daily myofibrillar protein synthesis rates and muscle hypertrophy as an omnivorous diet.
Evidence against · 1
Perspective: Vegan Diets for Older Adults? A Perspective On the Potential Impact On Muscle Mass and Strength
2022 · cited by 29
Highlighted that plant proteins' lower bioavailability, essential amino acid content, and whole-food matrix may increase the risk of inadequate protein intake in older adults.
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More for · 6
Shifting towards optimized healthy and sustainable Dutch diets: impact on protein quality
2023 · cited by 29
Found that optimized sustainable diets substituting meat with plant-based sources maintain sufficient protein adequacy.
A well-balanced vegan diet does not compromise daily mixed muscle protein synthesis rates when compared to an omnivorous diet in active older adults: a randomized controlled cross-over trial.
2024 · cited by 17
Showed that a well-balanced vegan diet does not compromise daily muscle protein synthesis rates compared to an omnivorous diet in active older adults.
Replacing Animal Meat with Plant-Based Meat Alternatives: The Impact of Protein Quality on Protein Adequacy in the Dutch Diet
2025 · cited by 13
Indicated that replacing animal meat with plant-based alternatives leaves total and utilizable protein intake adequate for the majority of the population.
Impact of Vegan Diets on Resistance Exercise-Mediated Myofibrillar Protein Synthesis in Healthy Young Males and Females: A Randomized Controlled Trial.
2025 · cited by 8
Found that the anabolic action of animal versus vegan dietary patterns on muscle protein synthesis is similar in young adults.
Protein Requirements for Maximal Muscle Mass and Athletic Performance Are Achieved with Completely Plant-Based Diets Scaled to Meet Energy Needs: A Modeling Study in Professional American Football Players
2024 · cited by 7
Demonstrated that completely plant-based diets scaled to high energy needs satisfy protein and leucine requirements for elite athletes.
Completely Plant-Based Diets That Meet Energy Requirements for Resistance Training Can Supply Enough Protein and Leucine to Maximize Hypertrophy and Strength in Male Bodybuilders: A Modeling Study
2024 · cited by 7
Showed that plant-based diets scaled to caloric demands can supply enough protein and leucine to maximize hypertrophy and strength in bodybuilders.