Regular strength-building workouts with weights are the best way to keep your muscles strong and fight the natural loss of strength that happens as you age. But it's also important to get enough protein. Unless you're a vegan, most people eat adequate protein without even thinking about it. But a recent study of older men and women found that those who went for a week without getting enough protein started to show early signs of muscle deterioration. You may not have to worry about that now, but by eating a diet rich in vegetable protein, such as sunflower seeds, cashews and other nuts and kidney beans, you?ll get all the protein you need, plus help keep your blood pressure in check. And of course, lean meat, fish, eggs, and dairy are other great sources of protein.