However, they also said that drinking coffee in pregnancy might be associated with harms, and might be linked to a very small increased risk of fractures in women.
The research, which collated evidence from more than 200 previous studies, also found coffee consumption was linked to lower risks of diabetes, liver disease, dementia and some cancers.
People consuming three cups of coffee a day were seen to have a reduction in premature death in comparison to the people who do not take coffee.
Despite years of fears that coffee is detrimental to health, researchers at the British Medical Journal (BMJ) have found that coffee is "more likely to benefit health than to harm it".
The protection was greatest for liver and bowel tumours.
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Among these groups, they said coffee could be harmful. To better understand the effects of coffee consumption on health, a team led by Dr Robin Poole, Specialist Registrar in Public Health at the University of Southampton, with collaborators from the University of Edinburgh, carried out an umbrella review of 201 studies that had aggregated data from observational research and 17 studies that had aggregated data from clinical trials across all countries and all settings. Women seem to benefit more than men with higher levels of consumption if factors like mortality from cardiovascular and coronary heart diseases are considered. They also urge coffee drinkers to stick to "healthy coffees", so your Venti Iced Toffee Nut Latte with Hazelnuts and White Chocolate Mocha Sauce might be off the menu.
"Mothers-to-be need not panic but might want to limit their coffee consumption to two cups per day in line with the recent European guidelines on caffeine".
Finally, coffee is often consumed with products rich in refined sugars and unhealthy fats, "and these may independently contribute to adverse health outcomes", he added.