Here is a picture of a simplified mineral wheel. What a mineral wheel shows is that balance between minerals is of critical importance. A line between two minerals with arrow on it shows a direct relationship between the minerals. For example, you see that Phosphorus (P) and Calcium (Ca) have a line with arrows going in both directions. This indicates that the ratio of P to Ca is important for the body to be able to utilize each mineral. The two minerals must be correctly balanced to achieve the maximum effect on the body.