After the country’s health officials released new guidance that having over two drinks a week can be a health detriment, now research from the University of Toronto says heavy coffee consumption is cause for concern as well. “These findings suggest that heavy coffee intake is associated with increases in the risk of kidney dysfunction among slow metabolizers of caffeine, who genetically comprise approximately half of the population,” an excerpt from the data read, adding that illnesses like hypertension could emerge. “We made a discovery back in 2006 with a case control study, where we showed that coffee increases the risk...