Protein is vital to a healthy diet, as it’s one of the essential building blocks for many cellular components in your body. Protein helps satisfy hunger, build muscle tissue, maintain lean muscle mass and give you energy. And when you consume 25 g of soy protein a day, as part of a diet low in saturated fat and cholesterol, you may reduce the risk of heart disease. One serving of Formula 1 provides 9 g of soy protein. Clinical studies on U.S. Formula 1 (one study) and on similar products show that Formula 1 shakes taken twice a day as part of a reduced-calorie diet along with moderate exercise help people lose weight.