Your skin is your body's largest organ, and as you age, the number of pigment-containing cells decreases, causing thinner, paler skin. It can also cause dark spots, also known as age spots, on parts of your skin with the most sun exposure. In addition to the breakdown of collagen, your skin also produces less oil as you make more trips around the sun, so you might notice drier, itchy skin. Fortunately, there are plenty of wrinkle-fighting retinol creams and vitamin C serums to help restore a youthful glow. But that's not all you can do to look decades younger. Eating a healthy, balanced diet can also help turn back the clock. The antioxidants and nutrients in foods can help your skin look its best in your 30s, 40s, and 50s. Check out our dermatologist-recommended food list to eat your way to wrinkle-free, supple skin at every age.