Background information

Fluid intake is essential for good health. While the relation between hydration status and physical activity has been an area of extensive research, the importance of hydration for maintenance of good health and cognitive performance is increasingly recognized1.

It is a common belief that drinking caffeinated coffee can lead to dehydration. The mild, short-term diuretic effect of caffeine has been described an “unproven myth”2. Scientific evidence looking at the effects of caffeine on fluid balance does not support this commonly held belief.

This information is intended for Healthcare professional audiences.
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