Vitamin D does not reduce cancer or cardiovascular events in healthy adults, trial finds

High dose vitamin D supplementation does not reduce invasive cancer or cardiovascular events in healthy people over 50, a large randomised trial has found.1 Further results showed no benefits from omega 3 fatty acids in primary prevention.2

Supplemental vitamin D is currently used to prevent and treat bone related disorders, but interest has been growing in its use for preventing cancer and cardiovascular disease. This is mainly based on studies showing lower death rates from cancer and cardiovascular disease in regions with greater sun exposure, which is assumed to increase …