Study finds that Omnivorous? Vegan? Makes no difference to muscle building after weight training

A new study, published in Medicine and Science in Sports and Exercise, explored three key questions about muscle protein synthesis: whether the protein source (plant or animal) matters, if protein distribution across meals affects muscle growth, and if a moderate protein intake influences outcomes. Researchers found that the answer to all three questions is "no." Contrary to long-held beliefs favoring animal-based proteins, the study revealed no significant difference between vegan and omnivorous diets regarding muscle protein synthesis. Forty healthy adults followed a controlled nine-day regimen, consuming either a vegan or omnivorous diet with varying protein distribution while engaging in weight training. Participants consumed about 1.1-1.2 grams of protein per kilogram of body weight daily, aligning with typical dietary patterns. Muscle biopsies showed similar muscle-building responses across all groups. Researchers concluded that the best food for muscle building is simply what you consume after exercise, provided it offers sufficient high-quality protein, regardless of the source.

26-05-2025