PREVIEW

Expert Advice About Daily Caffeine Consumption. NBC reports that while research has shown the positive long-term health effects of coffee, high caffeine consumption also comes with risks. Studies have found that those include increased risk of dementia and stroke, in addition to a higher risk of death from cardiovascular disease . According to experts, people with pre-existing health conditions may experience more of coffee's negative side effects. The Food and Drug Administration suggests people limit daily caffeine intake to 400 milligrams, equal to about four or five 8-ounce cups. According to the FDA, people are unlikely to experience serious side effects unless they consume 1,200 milligrams, or approximately 12 cups daily. Tricia Psota, a dietitian with Nutrition on Demand, warns that even 400 milligrams of caffeine can be associated with side effects like jitteriness, anxiety and difficulty sleeping. According to Psota, some people have a lower tolerance for caffeine and are more likely to experience negative side effects. According to Jessica Sylvester, a dietition at the Florida Nutrition Group, with everyone's tolerance varying, there are warning signs that you've had too much caffeine. "Within those milligram or cup of coffee recommendations, if you start feeling overly tired and the caffeine is not helping, then you’ve got to stop.", Jessica Sylvester, Dietition at the Florida Nutrition Group, via NBC. "If your heart starts beating incredibly fast, you’ve got to stop. It’s different for each person.", Jessica Sylvester, Dietition at the Florida Nutrition Group, via NBC. THIS VIDEO MUST NOT BE EDITED FOR LENGTH TO COMBINE WITH OTHER CONTENT