Americans spend billions and billions of dollars on vitamin supplements each year. But too many supplements can deliver more harms than benefits, including liver injury, joint, muscle and vision problems, and hair loss. Beware. Vitamin supplements are not magic pills.
Walter Willett, a professor of nutrition at the T.H. Chan School of Public Health advises against taking vitamin supplements; it’s almost never a good idea. Other experts say that you should only take vitamin supplements when you are not able to absorb vitamins appropriately through your diet.
Part of the proper with supplements is that the FDA does not regulate them the same way it does prescription medicines. Consequently, ingredients in supplements might be harmful to you. One analysis of 57 supplements found that 80 percent of supplements do not contain the amount of ingredients they claimed to contain and 40 percent did not contain any of the ingredients they claimed to contain. Twelve percent of these supplements did not list some ingredients, as required by the FDA.
Daryl Austin writes for National Geographic that vitamin A and E supplements can cause bodily harms because our bodies absorb them differently than other vitamins; they are fat soluble rather than water soluble.
Vitamin C and several B vitamins are water soluble; they dissolve easily and our bodies metabolize them quickly. If we have too much of them, we excrete them.
We are best off getting vitamin A from eating sweet potatoes, spinach and carrots, among other vegetables. Vitamin A helps with our health immunities, reproduction and vision. But, it’s important not to have too much vitamin A. Too much vitamin A can actually kill you, in the worst cases, and harm pregnant moms and their fetuses, causing birth defects.
We are best off getting vitamin E from eating fish, avocados, peanuts, hazelnuts and almonds. Vitamin E is an effective anti-oxidant that contributes to skin and vision health. But, excessive and even moderate amounts of vitamin E can cause serious harm, including increased risk of lung and prostate cancer, hemorrhaging and, according to some experts, death.
Vitamin E supplements have also been found to interact poorly with other treatments, including chemotherapy and prescription drugs.
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