Is coffee like a diuretic? I was just wondering??
http://www.mayoclinic.com/health/caffeine/HQ00369Caffeine does act as a diuretic, which means it causes an increase in the amount of urine you excrete. This water loss may decrease your body weight. But it doesn't decrease body fat. Also, keep in mind that caffeine is a stimulant that can increase your heart rate and blood pressure, interrupt your sleep, and cause nervousness and irritability. Also, many caffeinated beverages are high in calories, which can contribute to unwanted weight gain