|  | Spring Water (n = 33) | Supplemented Spring Water (n = 34) | ||
---|---|---|---|---|---|
 | Visit | Day 0 | Day 84 | Day 0 | Day 84 |
Bicarbonate (mmol/L) | Mean (SD) | 27.6 (1.84) | 27.6 (1.60) | 27.9 (1.94) | 27.8 (1.93) |
 | Change from baseline (Day 0) (SD) |  | 0.0 (2.01) |  | -0.1 (1.60) |
 | *P value |  |  | 0.511 | 0.790 |
Corrected Calcium (mmol/L) | Mean (SD) | 2.31(0.07) | 2.29 (0.09) | 2.32 (0.08) | 2.31 (0.091) |
 | Change from baseline (Day 0) (SD) |  | -0.03 (0.07) |  | -0.004 (0.06) |
 | *P value |  |  | 0.778 | 0.1504 |
Magnesium (mmol/L) | Mean (SD) | 0.86 (0.06) | 0.86 (0.06) | 0.87 (0.05) | 0.90 (0.052) |
 | Change from baseline (Day 0) (SD) |  | 0.006 (0.04) |  | 0.03 (0.03) |
 | *P value |  |  | 0.320 | 0.006 |