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Original title: Why eat fresh fruits and vegetables can fight tumors, strong immunity...? Because there's "it"!
science article, he often mentions that eating foods rich in carotenoids is good for your health. So what exactly is carotenoids? What good does it do to the human body? Carotenoids are a kind of yellow, orange or red fat-soluble pigment widely found in microorganisms, plants, animals and human body, which are mainly found in fresh fruits and vegetables in plants, and have a variety of biological effects such as antioxidant, anti-tumor, enhanced immunity and protective vision.
carotenoid structure and category
carotenoids can be divided into two categories, one is carotene and the other is loculin. The main carotenoids include α-carotene, β-carotene, γ-carotene, serotonin, zecotin, β-recessive kerin, lycoprotein, etc. Of the three isomer of carotene, β-carotene was γ-carotene. α, β, γ-carotene and β-reclusive can break down into vitamin A, while serotonin, zebin and lycoprotein do not have the activity of vitamin A, so they cannot be broken down into vitamin A.
food source of carotenoids
carotenoids can only be synthesized in plants and microorganisms, animals themselves can not biosynthetic carotenoids, so the human body is mainly obtained from plant-based foods. Carotenoids are found mainly in plants in fresh fruits and vegetables, of which α-carotene and β β-carotene come mainly from yellow-orange vegetables and fruits; The body consumes about 6 milligrams of carotenoids per day.
the efficacy of carotenoids
carotenoids have a variety of biological effects. Regular consumption of foods rich in carotenoids is good for your health.
1, antioxidant effect: carotenoids have significant antioxidant activity, can prevent aging, cardiovascular diseases, tumors and cataracts. Epidemiological studies have shown that lycoprotein, β-carotene and litein can reduce the risk of cardiovascular disease and some cancers, and can prevent atherosclerosis.
2, anti-tumor effect: dark green fruits and vegetables rich in carotenoids can reduce the incidence of cancer. Lycope, which mainly functions, has obvious anti-cancer effect and can effectively prevent the occurrence of many kinds of cancer.
3, enhance immune function: carotenoids can enhance the body's immune function. Lycoprotein and β-carotene reduce oxidative damage to immune cells and promote the production of certain lecirtins for immunomodulation.
4, protection of visual function: serotonin is the main functional factor to protect vision, increasing the intake of flaucin has a significant role in preventing and improving degenerative lesions in the elderly eye, such as retinal pigmentation, macular degeneration and cataracts. Because the lutein absorption peak corresponds to the blue light absorption spectrum, it can absorb a large amount of blue light close to ultraviolet light, thus protecting the retina from light damage.
5, maintaining the health of endocrine tissue cells: β-carotene, as a prelude to vitamin A, can be converted into vitamin A in the human body, and vitamin A is important for the normal formation, development and maintenance of the endocrine. When vitamin A is insufficient or deficient, the supersethic tissue thickens, cell division accelerates, and changes such as cell flattening, irregular and drying occur in the surface layer. It manifests it as endometrial carotsis in the nasal, pharynx, throat and other respiratory, gastrointestinal and genitourinary systems, weakening the natural barrier against bacterial attacks and making it vulnerable to infection.
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