Calcium's leading role is legendary. In fact, there seems to be no end to calcium's repertoire: It strengthens bones and teeth and new studies suggest that it may also prevent colon cancer, and ...

You can change the percentage of calcium into milligrams easily. Simply remove the percent sign and add a zero to the percent daily value. So if a food label says one serving has calcium at 20 percent ...

Many nutrients, such as calcium and magnesium, may be supplied to plants solely ... it can be estimated from soil texture and color. Table 1 lists some soil groups based on color and texture, ...