Twenty four hour urine collection.

<p>Values are means ± SD.</p><p>Coffee significantly higher than water.</p><p>Day 2 significantly higher than day 1.</p

Effect of caffeine consumption on urine production.

<p>Effect of caffeine consumption on urine production.</p

Mean body mass.

<p>* Significant difference between days. <i>n</i> = 50.</p

Urine void volume and USG.

<p>Values are means ± SD.</p

Mean total body water estimates from Day 1–Day 3.

<p><i>n</i> = 25.</p

Haematological data collected over each three day trial.

<p>Values are means ± SD.</p

Participant characteristics and pre-trial dietary intakes.

<p>Participant characteristics and pre-trial dietary intakes.</p