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Title: Multivitamin supplementation can effectively prevent cognitive decline in the elderly.
1. With the increase of age, the cognitive function of the elderly gradually declines, which has a serious impact on the quality of life. In recent years, more and more studies have found that reasonable multivitamin supplementation has a positive effect on the prevention of cognitive decline in the elderly. This article will elaborate on the protective effect of multivitamin supplementation on the cognitive function of the elderly and its mechanism from a scientific perspective.
2. The relationship between vitamins and cognitive function in the elderly.
1.Vitamin B complex.
Vitamin B complex includes B1, B2, B6, B12, folic acid, etc., which play an important role in maintaining the normal function of the nervous system. The study found that the protective effect of vitamin B complex on the cognitive function of the elderly is mainly reflected in the following aspects:
1) Reduce homocysteine levels: Homocysteine is an amino acid closely related to cognitive dysfunction, and vitamin B complex can promote homocysteine metabolism and reduce its blood concentration, thereby reducing the risk of cognitive dysfunction.
2) Antioxidant effect: Vitamin B complex has an antioxidant effect, which can remove free radicals in the body and protect the nervous system from oxidative damage.
3) Improve cerebral blood circulation: Vitamin B complex can reduce the aggregation of platelets, improve cerebral blood circulation, increase brain oxygen**, and is conducive to the maintenance of cognitive function.
2.Vitamin C
Vitamin C is a strong antioxidant that scavenges free radicals in the body and protects the nervous system from oxidative damage. The study found that the protective effect of vitamin C on the cognitive function of the elderly is mainly reflected in the following aspects:
1) Improve the antioxidant capacity of the brain: Vitamin C can improve the activity of antioxidant enzymes in the brain, reduce oxidative stress, and protect nerve cells.
2) Promote the synthesis of nerve growth factor: Vitamin C can promote the synthesis of nerve growth factor, which is conducive to the growth and repair of nerve cells.
3.Vitamin D
In recent years, studies have found that vitamin D is closely related to cognitive function in older adults. The protective effect of vitamin D on the cognitive function of the elderly is mainly reflected in the following aspects:
1) Regulate calcium and phosphorus metabolism: Vitamin D can regulate calcium and phosphorus metabolism, maintain the stability of calcium ions in nerve cells, and avoid nerve cell damage caused by calcium overload.
2) Anti-inflammatory effect: Vitamin D has an anti-inflammatory effect and can reduce the damage to the nervous system caused by chronic inflammation.
3) Promote nerve cell differentiation: vitamin D can promote the differentiation of neural stem cells, which is conducive to the repair and regeneration of nerve cells.
3. Recommended intake and food for vitamin supplementation**.
1.Vitamin B complex.
Recommended intake: According to the standard of the Chinese Nutrition Society, the daily intake of vitamin B complex for the elderly is: B1 12-1.4 mg, B2 12-1.4 mg, B6 15-2.0 mg, b12 24-2.8 mcg, folic acid 400-800 mcg.
Foods**: Lean meats, eggs, whole grains, legumes, leafy greens, etc.
2.Vitamin C
Recommended intake: The daily intake of vitamin C for the elderly is 100-200 mg.
Food**: Fresh vegetables and fruits such as citrus, strawberries, kiwi, tomatoes, etc.
3.Vitamin D
Recommended intake: The daily intake of vitamin D for the elderly is 10-20 mcg.
Food**: Fish, cod liver oil, egg yolks, dairy products, etc.
IV. Conclusion. Multivitamin supplementation plays an important role in preventing cognitive decline in the elderly. Older people should pay attention to the intake of vitamin-rich foods in their daily diet, and vitamin supplements can be used appropriately if necessary. However, it is important to note that excessive intake of vitamins can also have adverse effects on the body, therefore, the principle of moderation should be followed when supplementing vitamins and under the guidance of a medical professional.
References: 1 morris, m. c., evans, d. a., tangney, c. c., bienias, j. l., wilson, r. s., he, k. (2002). associations of vitamin b12, folate, and indicators of folate metabolism with cognitive performance in the elderly. american journal of clinical nutrition, 75(5), 821-828.
2. seshadri, s., beiser, a., selhub, j., jacques, p. f., rosenberg, i. h., d'agostino, r. b., wolf, p. a. (2002). plasma homocysteine as a risk factor for dementia and alzheimer's disease. the new england journal of medicine, 346(7), 476-483.
3. lobo, v., patil, a., phatak, a., chandra, n. (2010). free radicals and antiox
4. moriguchi, s., furukawa, s. (2010). vitamin d and brain development. neuroscience research, 68(4), 289-296.
5. annweiler, c., schott, a. m., berrut, g., allali, g., br
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