Table 1.

Mean plasma caffeine and blood glucose concentrations during C-replete and C-naïve studies.

Condition	Baseline caffeine (mg l−1)	Maximum caffeine (mg l−1)	Average blood glucose (mmol l−1)
C-replete	2.33 ± 0.62**	5.41 ± 1.45*	4.50 ± 0.1
C-naive	0.17 ± 0.05**	4.08 ± 1.18*	4.09 ± 0.08

^**P < 0.001 C-naïve vs C-replete

^*P < 0.02 C-naïve vs C-replete.