With the development of the times and the enhancement of people's health awareness, many people pay more and more attention to physical examination, and the examination items are becoming more and more refined.
What do vitamins do to the human body?
Vitamins are one of the six major nutrients needed by the human body, and they are also essential substances for maintaining the normal life and health of the body, so their importance is self-evident.
The 13 essential vitamins include 4 fat-soluble vitamins (A, D, E, K) and 9 water-soluble vitamins (including vitamins B1, B2, B3, B5, B6, B7, B9, B12 and vitamin C). Because our human body cannot produce vitamins on its own, except for vitamin D, which is mainly produced by sunlight on the skin, everything else can only be obtained by external food, so as not to cause anemia, scurvy and osteoporosis caused by vitamin D deficiency, so it is very important to eat a reasonable diet.
As the concept of nutrition is deeply rooted in the hearts of the people, people have begun to take the initiative to take vitamins, such as eating some vitamin C tablets, vitamin D soft capsules, etc.
Can vitamin supplementation really prevent cancer and fight cancer?
This issue is still controversial.
Because vitamins can be obtained through food or supplements, the amount of supplementation is different, and the pathogenesis of cancer is very complex. For example, vitamin C can reduce the accumulation of carcinogens nitrosamines in the body, greatly reducing the incidence of esophageal cancer and gastric cancer. However, if you supplement too much, it may increase the risk of cancer or affect the effectiveness of treatment.
Recently, the research results from the research team of the Naval Medical University show that vitamin C can activate the tumor suppressor gene TET2 and induce the normalization of tumor blood vessels, thereby improving the immunotherapy efficacy of anti-PD-L1 alone or in combination with IL-2, but the recommended dose is 100mg, the upper limit is 2000mg, and it cannot be oversupplemented, published in the Journal of Clinical Oncology One article reported that studies showed that taking high doses of vitamin C dietary supplements before or during cancer treatment increased the risk of cancer recurrence.
The results of an article published in the top journal JAMA showed that vitamin D supplementation has a certain effect on improving the survival results of cancer, especially colorectal cancer, and similarly, vitamin D needs to be consumed at least 2000 IUs per day to achieve a serum concentration of more than 30 ng/ml 25(OH)D, and the amount that can be obtained in the diet is difficult to exceed 200 IUs, so additional vitamin D supplements are required.
epilogue
Finally, remind everyone that although there are studies that show that vitamins can fight cancer, due to individual differences and limited research samples, so this conclusion can only be confirmed with the development of science and technology and more research results, of course, whether we need to supplement vitamins in the process of examination, physical examination or treatment or follow the doctor's instructions, if the body is lacking, it is appropriate to supplement, if it is normal, there is no need to overdose, because too much supplementation will also affect physical health!