Four Cups of Coffee Pose No Health Risk, Study Claims

There’s welcome news for coffee lovers! Drinking up to four cups of coffee everyday has no health risks, suggests a new study by researchers with the International Life Sciences Institute (ILSI).

Multiple studies have assessed the impact of caffeine on human health, with conflicting results, with some calling coffee a super healthy beverage while others marking it out as an incredibly harmful drink.

Scientists from ILSI’s North America branch now add to the growing notion that drinking many cups of coffee a day is safe for health. The scientists came up with fresh evidence in support of daily coffee consumption after reviewing more than 740 studies that looked into the effects of caffeine on humans and were conducted between 2001 and 2015.

“This Systematic Review provides evidence that furthers our understanding of caffeine on human health,” said Dr. Eric Hentges, the executive director of ILSI North America.

The review showed that approximately 400 mg of caffeine, equivalent to around four cups of coffee a day, have no adverse effects on healthy adults. But for pregnant women, 300 mg, around three cups, a day is safe. For children and adolescents, 2.5 mg of caffeine per kilo is deemed safe in the review.

While reviewing the caffeine-related studies, the researchers looked at five negative effects of caffeine on human health- acute toxicity, bone (calcium), heart, brain and reproductive & development.

They concluded that there was no need to worry about caffeine consumption as long as you have less than 400 mg a day.

“We concluded that the previously-defined levels of caffeine intake in a healthy caffeine consumer (400mg) were not associated with overt, adverse effects.”

The Systematic Review was carried out by a panel of experts including eight scientists from a private firm ToxStrategies and seven independent Scientific Advisory Board (SAB) members.

The researchers said they perceived that in spite of availability of all the literature on the effects of caffeine on health, nobody so far has actually conducted a review of the published papers, so they undertook the systematic review.

“Also, this review provides the research community with data and valuable evidence to support the development and execution of future research on caffeine safety that will impact public health. The complete transparency with which the data has been shared will encourage other researchers to build upon this work,” Hentges concluded.

The study part-funded by the ILSI appeared Friday in the journal Food and Chemical Toxicology.