What are the benefits of vitamin E for a few dollars? You may gain 3 benefits, but be careful not to eat too much
Recently, Xiao Jiu received a private message from a netizen, she asked:
"I am only 35 years old this year, but I have already started to develop chloasma on my face! Xiaojiu, I heard that vitamin E can remove freckles. I would like to ask the pharmacy to buy vitamin E tablets, is it useful? Taking too much vitamin E is harmful to the body. Will there be any impact?"
In fact, fans often ask Xiao Jiu about taking vitamin E. Many people think that vitamin E can resist aging. So what are the effects of vitamin E? What should I pay attention to when taking vitamin E? This time, Xiao Jiu will tell you in detail.
1. The study found that vitamin E supplementation may enhance the effect of immunotherapy
In April of this year, a study published in the top oncology journal "Cancer Discovery" found that vitamin E can enhance the response of immunotherapy in cancer patients.
Combining regression analysis of clinical records with in-depth laboratory studies, the researchers found that vitamin E can directly target the DC intrinsic checkpoint SHP1, thereby revitalizing DC antigen presentation and initiating T cells for anti-tumor immune responses.
In other words, vitamin E can improve the effect of immune checkpoint therapy in cancer patients.
In addition, there are claims that vitamin E helps prevent cancer, true or false?
A study in the Journal of the National Cancer Institute found that vitamin E supplementation may reduce cancer risk, but only in individuals who carry a specific allele of the catechol-O-methyltransferase (COMT) gene .
The researchers found that after taking vitamin E, the total cancer incidence of met/met individuals was significantly reduced, and the total cancer incidence of val/val individuals, including lung cancer, breast cancer, uterine cancer, and lymphoma leukemia, was significantly reduced. increased, while it had no effect in val-met individuals.
In addition, another study published in the "Journal of the American Medical Association" pointed out that taking too much vitamin E (400 international units per day) will increase the chances of men suffering from prostate cancer .
Therefore, vitamin E cannot be supplemented casually or in excess, as random supplementation may increase the risk of disease.
It should be noted that the following three types of people are not suitable for vitamin E supplementation:
Cancer radiotherapy patients : Because vitamin E supplementation may lead to weakening of radiotherapy efficacy.
Breast cancer patients : Because vitamin E is mostly found in some edible oils, eggs, meat and nuts, excessive intake of fat will increase the risk of breast cancer recurrence.
General healthy population : Vitamin E supplementation for disease prevention is not recommended.
2. Vitamin E can be taken orally for anti-aging, and can it be used externally to lighten spots?
Vitamin E has always been hailed as a beauty ingredient. Many people believe that oral vitamin E supplements can delay aging, and applying vitamin E to the face can lighten spots and improve skin quality. Can Vitamin E Really Anti-Aging and Blemishes?
In daily life, air pollution, water pollution, ultraviolet radiation and excessive stress may all accelerate aging and cause illness, and human skin will also deteriorate as a result, such as wrinkles, sagging of the face, and sagging skin.
Vitamin E can inhibit and eliminate free radicals and protect cell tissues from free radical damage . Therefore, vitamin E has antioxidant and anti-aging effects.
However, people who are not deficient in vitamin E do not need additional supplements. Generally, as long as they eat a healthy diet, they can get enough vitamin E.
As for the effect of "external use can lighten spots", vitamin E does not have it.
External use of vitamin E can effectively prevent skin photoaging caused by ultraviolet radiation, and can also reduce acute inflammatory reactions such as erythema and edema caused by sun exposure.
However, the effect of vitamin E on freckle removal and whitening is not clear at present. In addition, the stability of vitamin E is extremely low and it is easily oxidized . It often needs to be used together with other reducing substances such as vitamin C.
It should be noted that you should never use oral vitamin E to apply to your face , because oral vitamin E capsules contain more than 90% of the ingredients as excipients for the convenience of taking and gastrointestinal absorption, and these oily substances cannot be absorbed by the skin of.
Applying vitamin E to oily skin and acne-prone skin will make the skin oily, clog pores, and induce more acne.
If vitamin E can be taken correctly, it may be possible to reap the following benefits:
1. Anti-aging
Vitamin E can protect the fatty acids on the cell membrane from being oxidized, thereby keeping the cell membrane active and the metabolism normal, slowing down the aging of cells, and the aging of people will naturally be delayed.
2. Improve immunity
Vitamin E can regulate and enhance immune function. For example, patients with rheumatoid arthritis who regularly supplement vitamin E can effectively improve the symptoms of joint stiffness and pain.
3. Help hormone secretion
Before going to bed at night, taking an appropriate amount of vitamin E can promote the secretion of sex hormones in the body. For men, it can increase the number of sperm and their survival rate. For women, it can increase the concentration of estrogen, thereby improving fertility.
3. Do not abuse vitamin E, the harm is not small
Although vitamin E has many benefits, if it is not used properly, it may also bring many harms to the body.
If you take 400-800 mg/day of vitamin E per day for a long time, it may cause symptoms such as headache, dizziness, blurred vision, nausea, abdominal pain, diarrhea and breast enlargement;
Long-term use of vitamin E > 800 mg/day may cause bleeding tendency for patients lacking vitamin K, and it will also change endocrine metabolism and immune mechanism, and increase thrombophlebitis, thromboembolism and heart failure risk of other diseases.
People who may really need to supplement vitamin E are those who have severe partial eclipse habits, eating disorders, or people who suffer from certain vitamin deficiency diseases .
In addition to oral supplements, vitamin E can also be obtained through diet.
Vitamin E is found in vegetable oils, nuts, seeds, fruits, and vegetables such as wheat germ oil, soybean oil, flax oil, sunflower seeds, almonds, peanuts, beets, kale, spinach, pumpkin, lamb liver, yuba, mulberries, walnuts, cereal products etc.
Vitamin E is not only an essential vitamin, but also a major antioxidant, important for vision, reproduction, blood, brain and skin health.
When there is a lack or excess of vitamin E in the body, it will have a series of adverse effects on the body. But before supplementing vitamin E, you should consult a professional doctor first, and take it according to the dosage under the doctor's guidance.
References:
[1]Yuan X， Duan Y， Xiao Y， Sun K， Qi Y， Zhang Y et al. Vitamin E Enhances Cancer Immunotherapy by Reinvigorating Dendritic Cells via Targeting Checkpoint SHP1. Cancer Discovery. 2022;12(7)：1742-1759.
[2]Hall K， Buring J， Mukamal K， Vinayaga Moorthy M， Wayne P， Kaptchuk T et al. COMT and Alpha-Tocopherol Effects in Cancer Prevention： Gene-Supplement Interactions in Two Randomized Clinical Trials. JNCI： Journal of the National Cancer Institute. 2019;111(7)：684-694.
[3] " Vitamins can't be supplemented indiscriminately or vitamin E can be overdose or get cancer ". Life Times. 2019-08-11
Reprinting is prohibited without the author's permission