Pea protein is a plant-based protein extracted from yellow peas (Pisum sativum), and its use to support the structural system—primarily muscles, bones, and connective tissues—is backed by a moderate amount of scientific evidence. Protein is a well-established macronutrient essential for muscle protein synthesis, tissue repair, and overall structural integrity of the human body. Multiple studies have demonstrated that pea protein is a high-quality protein source, providing all essential amino acids, although it is somewhat lower in methionine compared to animal proteins. Clinical trials in both athletic and general populations have shown that pea protein supplementation can support muscle thickness, strength gains, and recovery similarly to whey protein, especially when combined with resistance training.

However, direct evidence regarding pea protein’s effects on bone health or connective tissue is less robust. Its contribution to the structural system is primarily indirect, through meeting protein requirements necessary for maintaining muscle mass and supporting metabolic processes involved in bone maintenance. For individuals seeking plant-based or hypoallergenic alternatives to common animal-derived proteins, pea protein is a scientifically validated option to help meet daily protein needs crucial for the structural system. Nevertheless, while its efficacy for muscle support is well documented, claims regarding direct benefits for bone or connective tissue health from pea protein alone are less substantiated.