Vegetables and fruits rich in lutein, such as: corn, carrots, tomatoes, spinach, cabbage, broccoli, pumpkin, yams, adzuki beans, black fungus, kelp, walnuts, sweet potatoes, black sesame seeds, Kiwi, citrus, hawthorn, red dates, mango, grapes, etc.

Lutein, also known as plant lutein, is a carotenoid with the chemical formula C40H56O2. It is widely found in vegetables, fruits, flowers and other plants. Its chemical formula contains two ketone rings and is present in humans. The main pigment in the macular area of ??the retina of the eye.

The stability of lutein is poor and is mainly affected by factors such as oxygen, light, heat, metal ions, pH, etc. For example, the heat treatment process can cause the isomerization reaction of lutein to produce 9-cis and 13-cis-lutein. Therefore, when storing, pure lutein crystals or lutein-containing materials should be sealed in a vacuum or filled with inert gas, protected from light and stored at low temperatures.

The origin of corn:

Corn originated from the central or southern plateau of Mexico and spread to China in the 16th century. It has the most common names or synonyms and is also one of the most widely distributed crops in the world. one. Corn is mainly concentrated in the central United States, the plains of China, and the plains of southern Europe; maize does not have high soil requirements and can grow on sandy soil, loam, and clay; maize likes temperature, light, and humidity, and thrives in high temperature, high humidity, and high light Under such conditions, products accumulate quickly, and offspring can only be obtained through sexual reproduction.

Corn can be cooked and eaten, popped into rice balls, or ground into flour to make cakes, cakes, and spoons. It is one of the staple foods for people in some parts of China. Corn grains are rich in nutrients and are mainly used for food and feeding. They can also be used to make high-quality edible oil and corn starch. After deep processing, beer can be made; the bracts can be used to make daily handicrafts.

Reference for the above content? People's Daily Online - Lutein can "replenish the eyes" but should not be overdosed