Do you really need these vitamin supplements?

According to data from the consumer survey of 2016, 71% of adult Americans take some type of food supplement. And the lure of food supplements is clear. We know that vitamins are needed for health, so why not be sure that we cover our bases?The darker side of food supplements is that many of the alleged health benefits come directly from people who earn money by selling vitamins, and research does not always meet the requirements of manufacturers and retailers vitamins. Here is a review of four vitamins you think twice.

MUSIC: whether that is what the doctor has prescribed1. Vitamin EAccording to the National Institutes of Health, the recommended daily dose (RDA) of vitamin E for adults is 15 mg (or 22.4 IU). RDA are based on what the nutrient requirement of 97 to 98% of healthy people meet, but supplements are 200-1000 IU per pill widely used. As with vitamin E, research is clear that you can have too much of a good thing.A thorough review of research from Johns Hopkins University found that people who took more than 400 IU per day have an increased risk of 4 to 6% of deaths. Another large study found that despite adverse claims to health, vitamin E did not reduce the risk of prostate cancer among the study participants. In fact, men who completed vitamin E were somewhat more likely to develop prostate cancer than men who have not used the supplement.Breathe yourself with this very TREATMENT ASTHMA2. Vitamin CExpensive vitamin C preparations for the prevention and treatment of colds and flu are marketed in all groceries and pharmacies. They come in the form of pills, pellets and beverage powders and usually contain 500 to 1000 mg of vitamin C, at least 5 to 10 times the RDA of vitamin C for adults. Some people use supplements daily to prevent colds and others use high doses at the beginning of a cold to shorten their duration. But a review of the evidence show that vitamin C affects only the cold in a manner - if you take vitamin C daily, your cold can be a little shorter. Despite the allegations of manufacturers who complete daily those do not get less cold, and begin early in a cold preparation do not affect cold symptoms. If you take a daily supplement of vitamin C choose to shorten your cold, keep in mind that mega doses can contribute to kidney stones.3. Vitamin AVitamin A can be toxic in high doses, causing symptoms such as nausea, vomiting and stomach pain. Most cases of toxicity vitamin A occur in adults with high doses of vitamins disease or in children who treat by accidental ingredient supplements, but the researchers now wonder whether smaller additional doses of vitamin A can also cause health problems. The RDA for vitamin A for adults is 700 to 900 mcg, and an article published in the American Journal for Clinical Nutrition indicates that only twice this amount has been linked to osteoporosis and hip fractures in humans, no other symptoms of toxicity.PARALISÉE DAD in the month ACCIDENT POOL before the marriage4. MultivitaminsSeventy-five percent of Americans who take supplements take a multivitamin, it is the most popular food supplement in the United States. Multivitamins are all different but most contain a long list of vitamins and minerals that sometimes exceed in amounts of their recommended daily dose. In recent years, a study has questioned the alleged health benefits of multivitamins, but there have also been some that have health benefits. In a large study of older women, the use of multivitamins was associated with an increased mortality.An eight-year study showed no protective effect against cardiovascular disease or mental deterioration, but a slight protective effect against cataract and cancer. And more recently, a 2016 study contradicts the previous research shows a slight benefit to the health of the heart. Research multivitamin preparations is not clear, and it is possible that all adults do not benefit.It is important to consult your doctor before adding a new supplement and know that adding more fruits and vegetables to your diet is the sustainable intervention you can do for your own health. Fruits and vegetables can reduce the risk of cardiovascular disease, cancer, diabetes and hypertension without dangerous side effects. And a basket full of products is much cheaper than a full closet ....