| Received caffeine citrate | P value• | |||
Yes | No | ||||
Mean | SD | Mean | SD | ||
Na | 133.44 | 2.69 | 135.08 | 1.88 | 0.001 |
K | 4.89 | 0.56 | 4.80 | 0.38 | 0.328 |
Ca | 7.28 | 1.20 | 8.08 | 0.76 | <0.001 |