With a little resourcefulness, you can double the healthy benefits of some of your favorite foods. Olive oil is indispensable in the kitchen, but when you're not stir-frying chicken and snow peas with it, you can use it as a natural moisturizer. Olive oil contains antioxidants that help battle skin aging and skin cancer, so mix in your bathwater, or rub directly onto your body to keep your skin strong and supple.