Seattle-based registered dietitian nutritionist and National Media Spokesperson for the Academy of Nutrition & Dietetics. "So if you have IBS
"Intraocular pressure increased for those with glaucoma when consuming coffee, so it's encouraged to limit/avoid intake, but more research is warranted,"
"We all know it is best to avoid a large cup of coffee before a long trip, especially if restroom breaks are limited. Caffeine intake can increase urgency
"As the caffeine from coffee can cause temporary increases in blood pressure and heart rate, it's important for anyone with pre-existing heart conditions
"The American College of Obstetrics and Gynecology recommends pregnant women limit caffeine to 200 milligrams daily in order to minimize the risk of miscarriage
"As caffeine is a stimulant and diuretic, the concern is that a breastfeeding mother may be at risk for dehydration,
"It is understandable to reach for a cup of coffee (or more) after a poor night's sleep, yet your coffee habit may perpetuate a cycle of poor sleep and fatigue
"Caffeine is a stimulant, which may worsen anxiety in some individuals," says McGrane. "If you regularly experience anxiety or panic attacks
"Some people swear by their morning cup of coffee to 'get their bowels moving,' but this effect is not desirable if you are struggling with diarrhea
"While a limited study, [recent findings showed that] heavy coffee consumption was associated with increased seizure frequency.