Adding protein powder to a glass of milk or a smoothie may seem like a simple way to boost your health. After, all, protein is essential for building and maintaining muscle, bone strength, and numerous body functions. And many older adults don't consume enough protein because of a reduced appetite. But be careful: A scoop of chocolate or vanilla protein powder can carry health risks, and you may be better off getting your protein from food sources. What is protein powder? Protein powders are