Selenium: "This helps safeguard the skin from sun damage and delays aging by protecting skin quality and elasticity," says Bauer. Food sources include Brazil nuts, tuna (canned light in water), crab and wheat germ.
Glucosamine: Available as a dietary supplement, it increases hyaluronic acid levels, which helps skin hold onto water and gives it plumpness, says Baumann. Results can be seen in four to six weeks.
What can actually damage your skin?Sugar: Sugar can be very detrimental to your skin. It increases acne and may speed aging by causing glycation--the result of sugar breaking down and bonding with protein molecules. This reduces the elasticity of the collagen and leads to tougher, wrinkled skin, says Baumann. "Sugar is very bad for the same reason that poorly controlled diabetics have more heart disease and blood vessel damage (due to glycation of these tissues)," adds Talbott. The same effects can occur to the skin due to excessive blood sugar fluctuations." A recent study shows that refined sugary foods that promote inflammation may also negatively affect the skin, says Bauer.
Spicy foods: "If you are prone to facial flushing, hot (temperature) or spicy foods will increase flushing, leading to dilated visible blood vessels on the face," says Baumann.
Caffeine: It can dehydrate you, but it also has an anti-inflammatory and anti-aging effect. It is the most popular ingredient in cellulite creams and is a hot new ingredient in many skin-care products, adds Baumann.
Chocolate and greasy foods: Most of the research says that chocolate doesn't specifically affect your skin; however, foods that are high in saturated and trans fats have been shown to do so. Plus, chocolate has sugar.
Stress: "This can increase oil production in the skin (via cortisol overexposure), leading to clogged pores and an environment suitable for bacteria-overgrowth," says Talbott. "In addition, cortisol overexposure can increase inflammation."race near you.