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 (/ËluËti.É¨n/ or /ËluËtiËn/ ; from Latin luteus meaning yellow) is a xanthophyll and one of 600 known naturally occurring carotenoids.he functional difference between lutein (free form) and lutein esters is not entirely known. It is suggested that the bioavailability is lower for lutein esters, but much debate continues. As a food additive, lutein has the E number E161b (INS number 161b) and is extracted from the petals of marigold (Tagetes erecta).