Answer to Question #196209 in Biochemistry for alisa

Question

What effect will drinking a lot of coffee have on the specific gravity of your urine?

Answer 1

Caffeine has a diuretic effect. When consumed with a high dose of caffeine (624 mg of caffeine) for 5 days, it caused a 2.7% decrease in total body water and a 41% increase in urine excretion, with a subsequent 66 and 28% increase in urinary sodium and potassium excretion over a 24-h period.