For years now, Lutein has been a popular supplement. Most people take Lutein in order to maintain the health of their eyes. This carotenoid has been shown to help prevent various diseases and conditions of the eye. In fact, it's been shown to fight against non-eye diseases and conditions, too. Consumers will find Lutein in various multivitamins and supplements today. Such products are commonly sold in vitamin shops, grocers, and drug stores these days. On the Web, popular retailers like Amazon and GNC carry Lutein, too. Interested consumers need to know where to buy Lutein from quality sources. The best Lutein products promote eye health and general body health after all. Plus, a multivitamin with Lutein can increase this effect. Any store or online retailer that carries vitamins or supplements should also stock Lutein supplements. Lutein is often taken daily and doesn't come with major side effects for the average person.