Lutein is generally eaten after breakfast is relatively good, but there is no clear stipulation of lutein need to be taken at what time period, patients can choose a reasonable time to take according to their own situation. Lutein is a carotenoid, mainly with antioxidant, vision protection, prevention of diabetes and other health effects. Generally speaking, patients can take it after breakfast to promote the absorption of its active ingredients, and it is relatively good to take it at that time. However, patients try to avoid taking it before bedtime, as lutein needs to be metabolized by the liver, which may lead to increased burden on the liver. At present, the clinical does not specify the time to take lutein, patients can according to their own needs, choose a reasonable time to take, generally will not affect its effect. However, the active ingredient in the drug is limited, can only play a health care role, and can not be used directly for the treatment and prevention of disease, patients need to be based on their own situation, reasonable use. It is recommended that patients take lutein properly under the guidance of a doctor and understand the relevant precautions before taking it.