A study in the journal Menopause found that some older women who take supplements may be getting too much vitamin D and calcium, which could cause health problems such as kidney stones. In a randomized study of 142 women ages 57 to 90, nearly 9% had excess calcium in their blood while 32% had too much calcium in their urine. Checking blood and urine calcium levels before supplements are started and three months afterward could reduce the risk, researchers said.
Many older women may get too much calcium from supplements, study finds
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