TABLE 1.

Characteristics of the kinds of drinking water used in the study.

Characteristics	SCMmw	BSMmw	BCmw	BCPMmw	lmw	Tap water
Bicarbonate (mg/L)	268	1,908	1,010	2,400	11	398
Sulphate (mg/L)	1,590	445	61	–	–	16.7
Magnesium (mg/L)	101	394	16.5	61.3	–	18.9
Calcium (mg/L)	580	48	323	212.2	3.3	104
Potassium (mg/L)	–	16.1	3.85	83.4	–	0.98
Sodium (mg/L)	14	160	19.6	–	1.5	4.1
Chlorides (mg/L)	–	46	18.5	–	–	6.4
Nitrates (mg/L)	<0.5	0.6	0.9	–	0.88	2.99
Fluoride (mg/L)	–	0.19	0.3	–	<0.10	0.12
pH	7.2	6.3	6.2	6.6	6.8	7.5
Electrical conductivity at 20°C (μS/cm)	2,300	2,760	1,325	4,060	25.5	571
Fixed residue at 180°C (mg/L)	2,470	2,128	987	3,002.3	22	408

SCMmw, sulphate-, calcium-, and magnesium-rich mineral water; BSMmw, bicarbonate-, sulphate-, and magnesium-rich mineral water; BCmw, bicarbonate- and calcium-rich mineral water; BCPMmw, bicarbonate-, calcium-, potassium-, and magnesium-rich mineral water; lmw, light mineral water; tap water, drinking water distributed by the ACEA Group in Rome.