Question

List all the sources and importance of the following minerals in food.

1. Calcium.
2. Magnesium
3. Potassium
4. Zinc
5. Iron

Answer 1

(a) Calcium:

1. The main sources of calcium are milk, cheese, eggs green vegetables, etc.
2. It helps in the formation of teeth, bone and blood clotting.

(b) Magnesium:

1. Magnesium is found in cheese, green vegetables, bread, fish, etc.
2. It helps in the transfer of energy and muscle activity.
3. It works with calcium and vitamin C.

(c) Potassium:

1. Potassium is found in meat, fruits, eggs, milk, etc
2. Its major function is to maintain the balance of fluid and blood in the tissue.
3. It also helps in the conduction of nerve impulses throughout the body.

(d) Zinc:

1. Zinc is mainly found in onions, fish liver and green vegetables.
2. It works as an enzyme activator in our body.

(e) Iron:

1. Iron is found in green vegetables, fresh fruits, etc.
2. Iron is needed to make haemoglobin that is present in the red blood cells.