Soya bean is a lean muscle mass builder

A bowl of cooked soybeans contains 14 grams of protein, healthy unsaturated fats, several vitamins and minerals. Soybeans are good source of vitamin K, iron and phosphorus. When you eat soy, your body digests it to form essential amino acids, blood transports them to the muscle, and your muscle uses them up during protein synthesis to create more proteins and provide energy. So, essentially consuming soybeans leads to muscle gain.