Role of Calcium:

Calcium is essential for the development and maintenance of bones and teeth. It is also needed for maintaining cell membranes and connective tissues and for the activation of several enzymes. Calcium also aids in blood clotting.

Foods Containing Calcium:

Humans get calcium from milk, cheese, egg yolk, beans, nuts, cabbage, etc.

Effects of Deficiency of Calcium:

The deficiency of calcium causes the spontaneous discharge of nerve impulses which may result in tetany Bones also becoming soft, blood clots slowly, and wounds healing slowly.

Role of Iron:

Iron plays a major role in oxygen transport and storage and is a component of hemoglobin in red blood cells and myoglobin in muscle cells. Cellular energy production also requires iron which acts as an enzyme cofactor. Iron also supports immune function.

Foods Containing Iron:

Humans get iron from red meat, egg yolk, whole wheat, fish, spinach, mustard, etc.

Effects of Deficiency of Iron:

Iron deficiency causes anemia which affects hundreds of millions of people. Infants, young children, adolescents, and pregnant and lactating women are especially vulnerable due to their high demand for iron.