Caffeine is present in beverages including coffee, tea, soft drinks and chocolate.
Whether high intakes of caffeine increases the risk of coronary heart disease is still under study. Many studies have been done to see if there's a direct link between caffeine, coffee drinking and coronary heart disease. The scientific evidence that's resulted is conflicting. Results are inconsistent, which may be due to methodological problems and confounding dietary factors. However, moderate coffee consumption doesn't seem to be harmful.