Intended for healthcare professionals

Minerva

Supplementary to requirement . . . and other stories

BMJ 2018; 362 doi: https://doi.org/10.1136/bmj.k3285 (Published 15 August 2018) Cite this as: BMJ 2018;362:k3285

Vitamin supplements

Many people buy and take vitamin and mineral supplements even though they have neither signs nor symptoms of vitamin deficiency. They probably aren’t doing themselves much harm, but a systematic review of cohort studies and randomised trials with more than 18 million person-years of observation finds not the slightest hint of benefit—at least as far as cardiovascular diseases are concerned (Circ Cardiovasc Qual Outcomes doi:10.1161/CIRCOUTCOMES.117.004224). Minerva reckons doctors should encourage their patients to find more interesting ways to spend their money.

Blood pressure in very old people

Nearly half of the …

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