By Wendy Haaf
Taking a vitamin D supplement won’t help you live longer if you’re an older adult who isn’t deficient in the so-called sunshine vitamin.
In an Australian study, 21,315 adults (average age at enrolment: 69.3) were randomly assigned to take either a placebo or a capsule containing 60,000 IU of vitamin D each month for five years. During a median follow-up period of 5.7 years, the number of deaths was nearly identical in the two groups—5.3 per cent in the vitamin D group and 5.1 per cent among placebo-takers—and there were no significant differences in deaths due to cancer, cardiovascular disease, or other causes.
The researchers noted that their results were consistent with those of other large vitamin D studies.
Source: Lancet Diabetes & Endocrinology
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