Lutein has a strong oxidative effect, which can inhibit the activity of reactive oxygen free radicals and prevent them from damaging normal cells. Relevant experiments have shown that reactive oxygen free radicals can react with DNA, proteins, and lipids, weakening their physiological functions, and then causing chronic diseases such as cancer, arteriosclerosis, and age-related chalazion. Lutein can inactivate singlet oxygen through physical or chemical quenching, thereby protecting the body from damage and enhancing the body’s immune capacity. Reduce the incidence of cataracts Cataracts are the main eye disease causing blindness worldwide. The latest research shows that increasing the intake of lutein (marigold extract) can achieve the purpose of reducing the incidence. It is currently believed that the mechanism is that lower macular pigment density is closely related to higher lens visual density in middle-aged and elderly people, and higher lens visual density is considered to be a significant feature of cataract onset.
Recent research results show that lutein has a delaying effect on the early stage of arteriosclerosis. It is mainly the relationship between the change in the thickness of the endothelium of the main artery and the lutein content in the blood. The low lutein content in the blood can easily cause the thickening of the arterial wall. As the lutein content gradually increases, the thickening trend of the arterial wall decreases, and arterial embolism also decreases significantly. At the same time, the lutein in the arterial wall cells can also reduce the oxidation of LDL cholesterol.
Many studies have shown that lutein has an inhibitory effect on many cancers, such as breast cancer, prostate cancer, colorectal cancer, skin cancer, etc. According to a recent study by the School of Pharmacy of New York University, there is a close relationship between reducing the incidence of breast cancer and lutein intake. The survey found that the incidence of breast cancer in the experimental group with low lutein intake was (2.08-2.21) times that of the group with high intake. This effect may involve indirect immune regulation in coordination with other organs and tissues. The study concluded that the intake of lutein in the diet can not only inhibit cancer but also prevent tumor occurrence. Relevant institutions recommend that the average daily intake of 400g to 600g of fruits and vegetables per person can reduce the relative risk of cancer by 50%.