Kale
A member of the cabbage family, kale is packed with calcium and potassium, which may help slow the decline in bone-mineral density that occurs with aging. The leafy green vegetable is also an excellent source of vitamin K, which may prevent bone fractures. Sauté with a bit of olive oil and roasted garlic for a simple and delicious side dish, or find creative ways to cook with it, such as this Mediterranean-style Parmesan Couscous and Ratatouille entrée.