Beneficial effect of sulphate-bicarbonate-calcium water on gallstone risk and weight control

Table 1 Chemical composition of the sulphate-bicarbonate-calcium thermal water and of the Rome tap water, as consumed by the thermal water and by the control group, respectively

	Thermal water (TW)	Tap water (CTRL)
pH	6.8	7.5
Fixed residue at 180 °C (mg/L)	3280	390
Sulphate (mg/L)	1840	15
Bicarbonate (mg/L)	730	-
Calcium (mg/L)	840	98
Magnesium (mg/L)	180	19
Sodium (mg/L)	41	5.5
Chloride (mg/L)	29.4	6.5
Potassium (mg/L)	7	3
Fluoride (mg/L)	2	0.2
Bromide (mg/L)	0.2	-
Carbon dioxide (cc/L)	537	-
Strontium (mg/L)	0.1	-
Iron (µg/L)	0.8	5
Manganese (μg/L)	-	0.3
Nitrate (mg/L)	-	3.8

TW: Thermal water; CTRL: Control.