Pea protein, derived from yellow split peas (Pisum sativum), has been increasingly studied and utilized as a plant-based protein source to support the muscles body system, primarily due to its high protein content and favorable amino acid profile. Several clinical studies have demonstrated that pea protein supplementation can promote muscle protein synthesis and support muscle growth and recovery, particularly in resistance-trained individuals. For example, a double-blind, randomized controlled trial published in 2015 found that pea protein supplementation led to increases in muscle thickness comparable to whey protein in young men participating in resistance training programs (Babault et al., 2015).

Pea protein contains all nine essential amino acids, though it is relatively lower in methionine compared to animal-based proteins. However, it is rich in branched-chain amino acids (BCAAs), especially leucine, which is critical for stimulating muscle protein synthesis. Additionally, pea protein is hypoallergenic and easily digestible for most people, making it a suitable option for those with lactose intolerance or allergies to dairy or soy.

The scientific evidence suggests that pea protein is a legitimate plant-based alternative to traditional animal-derived proteins for supporting muscle health, particularly in the context of resistance exercise. While more long-term studies are needed, current clinical data and its nutritional profile provide a strong foundation for its use in muscle support.