Calcium, is a supple gray alkaline earth metal, which is the fifth most abundant element by mass in the Earth's crust. Calcium is also at the fifth most profuse dissolved ion in seawater by both molarities and mass. Calcium is a significant nutrient that we require in our bodies. It has many imperative functions. It helps getting strong teeth and bones and is involved in muscle contractions and blood clotting, The calcium is mainly stored in our teeth and bones. Low calcium level may lead to the bone fractures and in some cases porous bones or osteoporosis, generally in old age. The intake of calcium can drop down the high blood pressure, maintain your heart functions, avert gum disease, prevent colon and rectum cancer, and help blood to clot.

Iron is one of the most commonly available chemical elements which are used in the form of metal. When in the presence of oxygen and moisture, iron gets oxidized very easily. Therefore it is never available on the surface of earth. Iron is a metal whose properties can be changed by mixing it with the various other metals. Humans need iron as a daily dietary substance. There are a number of supplements available in market which provides the daily required dose of iron. But the best way to consume iron is by eating the food that is rich in iron. Fish, poultry, beans, lentils, leafy vegetables are some of food items that are a good source of iron. Although, research shows that it is easier to digest the iron found in meat and meat products than the vegetables.

Vitamin A is used for improving poor night vision, dry skin, and it can help acne. It is also a fat soluble vitamin. Too much vitamin A can cause side effects. An excess of vitamin A can actually make acne worse.

Vitamin C is L-ascorbic acid, or the active component of Vitamin C. Ascorbate, which is an ion of the ascorbic acid, is required for many metabolic reactions and is manufactured internally by most organisms, except humans. It is an essential nutrient and needs to be provided through nutrition. While oranges were traditionally deemed a good source of Vitamin C, the amount provided by an orange is dwarfed by the amount provided by the kakadu plum the richest Vitamin C plant resource of the world. Other notable sources are red peppers, parsley, Kiwifruit, Guava, Broccoli, Camu Camu, rose hip, Jujube, papaya, strawberries, lemon, melon and similar. Vitamin C is essential for tyrosine, carnitine and collagen synthesis, is the most widely available antioxidant and furthermore is vital for blood vessels, cartilage and scar tissue.