Antioxidant supplements improve the health of arteries, according to review of 20 clinical studies in which supplements with a total of 1909 participants. The review, published in the Journal of Nutrition, examined studies in which vitamin C, vitamin E, vitamin A and /or beta-carotene were compared with either a placebo or no supplements. Researchers found that taking the antioxidants reduced stiffness in arteries, which helps to prevent heart disease. This was true for people of all ages, but benefits were greatest among young people and those with low levels of the antioxidants.
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