Diet not only plays a role on what goes on inside your body, but also how it appears on the outside. While genetics and skin type play a large role in wrinkles, diet also makes an impact. To help maintain the luminous skin of youth, the following are items to include in your diet. Not only do they help stave off wrinkles and sagging skin, they also enhance your overall health.

The Omegas: 3, 6, 9. Omegas are "good fats, " or essential fatty acids that help your skin at the cellular level, keep it moist and hydrated. As we age, we tend to have drier skin and eating a diet rich in omegas can save dry skin. Foods that are rich in omegas include fish like salmon, mackerel and sardines, eggs (organic are preferred), and nuts like pecans, almonds and walnuts. Be wary of rancid nuts however, as they may actually increase free radicals.

Antioxidants in fruits help fight free radicals that cause signs of aging. Buy local to ensure that your fruit has the maximum amount. If you don't like whole fruit, smoothies and juices can be a good alternative, but watch your sugar intake as sugar can cause skin problems.

Green leafy vegetables contain not only antioxidants but chlorophyll as well. Chlorophyll helps oxygenate the blood and keeps it flowing, helping your skin to continually renew and look young.

Avocado contains vitamin E, which helps to maintain healthy skin and prevent signs of aging.

Cruciferous vegetables including cabbage, cauliflower, broccoli, kale, turnip, brussels sprouts, radish and watercress help to fight toxins and cancers.

Berries contain large amounts of antioxidants that fight free radicals and signs of aging.

Watermelon is full of good skin nutrients. The flesh contains vitamin A, B and C, while the seeds contain selenium, essential fats, zinc and vitamin E, all of which help against free radical damage and aging.

To get all the nutrients, blend both seeds and flesh together in a blender and enjoy as a juice.

Water may seem like a no-brainer, but many people forget about. Drinking water helps flush toxins and waste materials out of the body. The sensation of thirst may lessen with age, so it's important to remember to drink plenty of water throughout the day.

Many foods can be combined in recipes. Look for cookbooks and recipes online, or come up with interesting meals yourself. For instance, use citrus vinaigrette to complete a green salad with chopped egg and avocado.