Nonetheless, you may must drink a variety of lemon water to realize these results. “Lemons have been noticed to help in digestion and as a diuretic, however analysis is proscribed, and commonplace dosing and formulation studied has been 85 milliliters (60 mEq citrate), which is about 3 ounces, or two medium lemons,” factors out Monique Richard, M.S., RDN, LDN, proprietor of Diet-In-Sight and nationwide media spokesperson for the Academy of Diet and Dietetics.