The increase in water intake may be due to the pres-ence of caffeine in the coffee pulp and, at high doses of coffee pulp, urine excretion increases. Studies carried outin humans (Stookey, 1999) mention that when no caf-feine and alcohol is consumed, water intake decreases.Armstrong et al. (2005) reported that doses of up to 6 mg caffeine per kilogram of weight in humans did not affect osmolarity in urine, urine color, osmolarity of sodium and potassium serum, or urine volume. Kovacs et al. (1998) also found no effects on diuresis due to intake of up to 4.5 mg caffeine per kilogram of weight. However, Neuhäuser-Berthold et al. (1997) found that higher doses, 642 mg caffeine daily in humans, increases urine excretion. In the present study, there was a significant increase (P < 0.05) in water intake only when including 16% coffee pulp in thediet.