Protein
As we age, muscle mass begins to decline at around 1 percent per year. This loss becomes a vicious cycle -- loss of muscle means lower metabolism, loss of coordination and balance and the list goes on. Fortunately, combining strength training with a little “magical” by-product of milk (whey protein isolate) can do wonders. Try adding it to a smoothie, mix in some blueberries, and you’ve got a winner! You can find whey protein powder in most grocery stores.