There may not be a fountain of youth, but the food we eat and how we treat ourselves can prevent or even reverse aging. Your body needs the right nutrients to fight off damage, and your skin is no different. Nutrients help the cells replicate and have more energy. Processed foods, stress, toxins and low-nutrient diets will accelerate aging. Protecting yourself from harmful chemicals while getting enough sleep, relaxation and exercise will all help you maintain a healthy glow.
1. Drink plenty of water.
Even with a small amount of dehydration, your body functions in a less optimal way. The instant you're dehydrated, it will take a toll on your skin, causing it to look dull, flaky, saggy and loose.
2. Eat foods with antioxidants.
Antioxidants are the best resources your body has to fight disease and aging by reducing damage and inflammation. Inflammation is a leading cause of wrinkle formation. Some of the best sources of antioxidants include:

Blueberries
Pomegranates
Acai berries
Goji berries
Spinach
Raspberries
Nuts
Seeds
Purple grapes
Dark chocolate (70% or higher of cocoa content)
Organic green tea

http://9jahealth.com.ng/15-natural-ways-maintain-beautiful-youthful-skin/