Protein shakes a generally a safe substitute for athletes and those who exercise rigorously who want to get enough protein. Protein shakes are not at all necessary for weight loss, but they can definitely benefit the body. These formulated shakes are intended for helping the body to recover after intense physical activity by repairing muscle injury and reinstating the body�۪s supply of glycogen. It�۪s best that you use shakes a supplement rather than a meal replacement, being that they often lack vital nutrients. If you drink too many shakes, they might sabotage your weight loss efforts, therefore, use them as a tool in moderation. If you are careful to not consume too many calories, protein shakes can benefit your weight loss journey.