In the traditional concept of China people, "Lycium barbarum" is equivalent to "keeping in good health". Li Shizhen's Compendium of Materia Medica records Lycium barbarum as "Lycium barbarum can strengthen bones and muscles for a long time, keep fit, improve eyesight and soothe nerves, and prolong life". At the same time, when the great poet Lu You was old, because his eyes were dim and his vision was blurred, he often ate Lycium barbarum to cure diseases. Therefore, he wrote the poem "The bell in Maotang, Xue Ji is clear, and Lycium barbarum blooms in the morning". Recently, a research group studied the effect of Lycium barbarum on improving vision.
Some researchers have published research articles about nutrients. Studies have shown that taking 28g dried Lycium barbarum five times a week can significantly increase the density of eye protective pigments and the content of carotenoids in the skin after 90 days, which is helpful to prevent age-related macular degeneration. The effect of taking dried Lycium barbarum directly is better than that of health care products.
A total of 365,438+0 subjects aged 45-65, with an average age of 56, were randomly assigned to the Lycium barbarum group and the supplement group. The Lycium barbarum group took 28g dried Lycium barbarum produced in Ningxia five days a week. The supplement group was replaced by dietary supplements, each of which contained 6 mg lutein and 4 mg zeaxanthin. After 45 days and 90 days, the content of lutein carotenoids in the retina of Lycium barbarum group increased significantly compared with the beginning, but the content of carotenoids in the supplement group did not change significantly. Therefore, long-term consumption of Lycium barbarum is indeed better than health care products in improving eyesight.