10 Foods that Beautify from the Inside Out!
Citrus fruits hold the skin cells together by forming collagen. Collagen cannot be added to the skin topically, which is why fruits and fruit juices are such an important part of your daily diet. Sweet potatoes are an absolute must for many models. Christie Brinkley even cooks several at a time, and keeps them in her refrigerator for when she gets a sweet craving. You can also cook them ahead and quickly microwave them with a bit of cinnamon when your urge to eat something sweet comes up. Sweet potatoes are full of vitamin A, which is known to be a remarkable anti-wrinkling agent. If you suffer from sallow skin, add a bit of lemon to your diet. Spritz it on your salads, add it to each glass of water, and flavor up your fish and vegetables. Try some unusual foods for variety. Figs are rich in niacin and magnesium. Experiment with mushrooms. They're great by themselves and can be added to antipasto and other vegetables. Nutmeg is a natural sweetener and sunflower seeds are a great source of phosphorous. These are great foods that will directly contribute to even better looks. Source iVillage Total Health
There are many foods that have direct beauty benefits working from the inside out. Carrots maintain the outer layer of the skin, and thus prevent premature aging. What is found in carrots is similar to what you can get from Retin-A. 
Add leafy green vegetables and fresh fruits like peaches and apricots to your diet. These foods help prevent aging and repair the outer layer of your skin.
Celery is a dieter's dream! Because it takes up so much space in your stomach, celery is one of the choice foods of the world's most beautiful bodies. It's a great source of fiber and a natural cure for constipation. It also contains both calcium and magnesium.
Parsley has almost no calories and gives you the best breath! It's rich in chlorophyll.
