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Coffee is good for you.

Drinking three to four cups of coffee daily is associated with health benefits across a range of diseases and conditions, according to a review published in the British Medical Journal. The study identified 201 meta-analyses of observational research and 17 of interventional research finding that coffee consumption was more beneficial than harmful.

Consumption of three cups a day was associated with a 19% lower risk of mortality from cardiovascular disease, a 16% lower risk of mortality from coronary heart disease and a 30% lower risk of stroke mortality. There was no harm associated with increasing to four cups a day, but the beneficial effects were less pronounced. A meta-analysis of 40 cohort studies suggested that there is a lower incidence of cancer among people who consumed large amounts of coffee than among those who drank little. Coffee drinkers also have a 29% lower risk of non-alcoholic fatty liver disease, a 27% lower risk of liver fibrosis and a 39% lower risk of liver cirrhosis.

The outcomes are mixed for coffee in pregnancy, however, with high consumption associated with a higher risk of low birth weight.

Poole R, Kennedy OJ, Roderick P, Fallowfield JA, Hayes PC, Parkes J. Coffee consumption and health: Umbrella review of meta-analyses of multiple health outcomes. BMJ 2017;359:j5024. https://doi. org/10.1136/bmj.j5024

B Farham

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Title Annotation:30 days in medicine
Author:Farham, B.
Publication:South African Medical Journal
Article Type:Report
Date:Dec 23, 2017
Words:226
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