Different Types of Vitamins and their Functions

Dear Readers,
Vitamins are nutrients for human body needs to function and fight off disease. Human body cannot produce vitamins itself, so we must get them through food you eat or in some cases supplements.

Vitamin was invented by Sir Frederick Gowland Hopkins. The term vitamin was coined by Casimir Funk.

There are 13 vitamins that are essential to our body working well. Knowledge of the different types and understanding the purpose of these vitamins are important for good health.

Types and Examples of Foods

On the basis of solubility, there are two types of vitamins: fat-soluble vitamins and water-soluble vitamins.

A. Fat-soluble Vitamins are stored in your fat cells, consequently requiring fat in order to be absorbed.

The fat soluble vitamins: Vitamin A, Vitamin D, Vitamin E & Vitamin K

B. Water-soluble Vitamins are not stored in your body; therefore, they need to be replenished daily. Your body takes what it needs from the food you eat and then excretes what is not needed as waste. Here is a list of vitamin types and some common food sources:

The water soluble vitamins: Vitamin B1, Vitamin B2, Vitamin B3, Vitamin B5, Vitamin B6, Vitamin B7, Vitamin B9, Vitamin B12 and Vitamin C.

Chemical Name, Deficiency Disease and Sources of Vitamins

Chemical Name
Deficiency Disease
Vitamin A Retinol Night Blindness
Xerosis Conjunctiva
Xerosis Cornea
Bitot’s Spots
Milk, Egg, Cheese, Green Vegetable, Fish Liver Oil
Vitamin D Calciferol Rickets (in Children)
Osteomalacia (in Adults)
Fish Liver Oil, Milk, Egg
Vitamin E Tocopherol Less Fertility Leafy Vegetables, Milk, Butter, Vegetable Oil, Sprouted Wheat
Vitamin K Phylloquinone Non-clotting of Blood Green Vegetable, Tomato, Soybean Oil
Vitamin B1 Thiamin Beriberi Green Vegetables, Ground Nut, Seed, Liver, Pulses, Egg
Vitamin B2 Riboflavin Cracking of Skin
Red-dish Eye
Green Vegetables, Milk, Meat
Vitamin B3 Niacin Whitening of Hair Sugarcane, Milk, Meat, Nut, Tomato
Vitamin B5 Pantothenic Acid Pellegra Ground Nut, Potato, Tomato, Leafy Vegetables, Meat
Vitamin B6 Pyridoxine Anemia
Skin Disease
Grains, Liver, Meat
Vitamin B7 Biotin Paralysis
Hair Falling
Milk, Egg, Liver, Meat
Vitamin B9 Folic Acid (Folate) Anemia Vegetables, Pulses, Liver, Egg
Vitamin B12 Cynocobalamin Anemia, Jaundice Milk, Meat
Vitamin C Ascorbic Acid Scurvy Orange, Lemon, Tomato, Chilly

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