What is healthy water. If you have osteoporosis or osteopenia you may wish to hit your optimum in-take of calcium. Mineral was is a great source of calcium. However commercial mineral water contains very different levels of calcium.
| Brand | Country | Calcium (mg/L) |
| Eptinger | Switzerland | 475 |
| Aproz | Switzerland | 360 |
| S.PELLEGRINO | Italy | 174 |
| Gerolsteiner | Germany | 125 |
| Allegra Passugger | Switzerland | 98.3 |
| Hildon | UK | 97 |
| Vittel | France | 94 |
| Valais | Switzerland | 90 |
| Evian | France | 80 |
| Iskilde | Denmark | 61 |
| Valser | Switzerland | 50 |
| Fiji | USA | 18 |
| Volvic | France | 12 |
| Kamuiwakka Reisui | Japan | 5.1 |
| Ramlösa | Sweden | 3.5 |
| Fusami – Water | Japan | 0.81 |