Minerals salts are needed in very small quantities, but they are very essential for proper functioning of the body. Besides playing a major role in the regulation of metabolic activities, the minerals salts are also very important constituents of certain tissues of the body. For example; Calcium is the principle component of the skeleton system.
Below we have given some minerals salts, their importance and sources:
| S. No. | Mineral | Importance | Sources |
| 1 | Iron | Essential for the formation of Haemoglobin | Eggs, Green Vegetables, Meat |
| 2 | Sodium | Important constituent of body fluids (blood and lymph); transmission of nerve | Common Salt, Milk |
| 3 | Calcium | Principle component of Skeleton, and teeth; essential for contraction of heart muscles, and blood coagulation | Green Vegetables, Milk, Eggs |
| 4 | Potassium | Intracellular Osmotic Pressure; transmission of nerve impulses | Vegetables, Meat |
| 5 | Phosphorus | Very essential for the formation of bone and teeth; for muscular contraction; for the synthesis of nucleic acids and phospholipids; Phosphorus also helps in the maintenance of blood pH | Eggs, Milk |
| 6 | Fluorine | It helps in the formation of Enamel of Teeth. | Milk, Drinking Water |
| 7 | Iodine | Iodine is very essential for the formation of Thyroxine. | Common Salt, Sea Foods |
| 8 | Sulphur | Constituent of Hair, Nails and Corneous Layers of Skin | Eggs, Fish, Meat |
| 9 | Chlorine | Chlorine is very essential for maintaining Osmotic Pressure of the body fluids. | Milk, Salt |
| 10 | Magnesium | Magnesium Activates Certain Enzymes | Meat, Green Vegetables |
