is a trace mineral that is important for the metabolism of glucose. Its main function is to increase the effectiveness of insulin in your cells. This mineral may also reduce your blood sugar levels, and that results in a reduced risk for developing prediabetes. It has also been shown to reduce the risk for and improve other health problems such as cardiovascular disease, among others.
a. Phosphorus (P)

b. Chromium (Cr)

c. Sulfur (S)

d. Copper (Cu)