How to Treat a Fever Blister. Fever blisters, also known as cold sores, are caused by the type 1 herpes simplex virus. You wake up one morning with a tingling or burning sensation on your lip and know immediately what's coming within the next day or two: a painful cold sore, also known as a fever blister. Cold sores are caused by the type 1 herpes simplex virus (HSV-1).
Lutein is called a carotenoid vitamin. It is related to beta-carotene and vitamin A. Foods rich in lutein include broccoli, spinach, kale, corn, orange pepper, kiwi fruit, grapes, orange juice, zucchini, and squash. Lutein is absorbed best when it is taken with a high-fat meal.
Lutein (from the Latin luteus meaning yellow) is one of over 600 known naturally occurring carotenoids. Found in green leafy vegetables such as spinach and kale, lutein is employed by organisms as an antioxidant and for blue light absorption.Lutein is also found in egg yolks, animal fats and the corpus luteum.utein is a xanthophyll, like its sister compound zeaxanthin. It has primarily been used as a natural colorant due to its orange-red color. Lutein absorbs blue light and therefore appears yellow at low concentrations and orange-red at high concentrations.