Calcium? Kalzium is a common misspelling of calcium.
Calcium is a mineral that can be obtained from the diet (usually from dairy products) or through supplements. It is important for maintaining healthy bones to prevent osteoporosis and is also often claimed to be beneficial for lowering blood pressure and treating premenstrual syndrome (PMS) symptoms. Many people believe that "natural" dietary supplements are free of side effects, but calcium supplements could cause gas, belching, kidney stones, and other bothersome side effects.
(Click Calcium for more information on how calcium works, what it is used for, and what you should be aware of before using this supplement. You can also click on the various links in the box to the right to access specific topics on calcium.)