Any group of organic compound which are important for normal growth and nutrition and cannot be synthesised by the body are called vitamins.
vitamin A-amaranth leaves,bokchoy,etc
helps cell reproduction and it also stimulates immunity needed for the formation of hormones.
helps in production of energy and essential for the functioning of heart.
It also helps in releasing energy and helps in body growth.
Niacin assists in the functioning of the digestive system, skin, and
nerves. It is also important for the conversion of food to energy.
Pantothenic acid is essential for the metabolism of food as well as in
the formation of hormones and (good) cholesterol.
B6 plays a role in the creation of antibodies in the immune system. It
helps maintain normal nerve function and acts in the formation of red blood
cells. It is also required for the chemical reactions of proteins. The higher
the protein intake, the more need there is for vitamin B6. Too little B6 in the
diet can cause dizziness, nausea, confusion, irritability and convulsions.