Grade upto college level Physical Chemistry
What are vitamins. How are they classified
1 Answer
Anjali Ahuja
A vitamin is an organic compound and a vital nutrient that an organism requires in limited amounts. Vitamines are not formed in the body and therefore taeken in diet.
They are classified on the basis of solubility.
Water-Soluble Vitamins
Nine of the 13 essential vitamins are classified as water-soluble vitamins. That means they are found in great abundance in watery foods such as fruits and vegetables and in the watery components of grains, nuts, seeds and animal products. The water-soluble vitamins include A in the form of beta-carotene, B6, B12, riboflavin, thiamin, niacin, folate, biotin, and C. Water-soluble vitamins are used immediately by your body or they are excreted in your urine. Unlike fat-soluble vitamins, they cannot be stored in your body so they should be replenished on a daily basis.
Fat-Soluble Vitamins
Four of the essential vitamins are classified as fat-soluble vitamins. Fat-soluble vitamins are found in fatty foods, such as vegetables oils, and the fatty components of meat, poultry, seafood, dairy products, grains, nuts, seeds and some fruits and vegetables. The fat-soluble vitamins include vitamins A, D, E and K. Fat-soluble vitamins that are not used right away are stored in the fatty tissue of your body. For this reason, they do not necessarily need to be replenished every day, but it is also easier to overdose on fat-soluble vitamins than on water-soluble vitamins. This is particularly true if you are taking vitamin supplements
They are classified on the basis of solubility.
Water-Soluble Vitamins
Nine of the 13 essential vitamins are classified as water-soluble vitamins. That means they are found in great abundance in watery foods such as fruits and vegetables and in the watery components of grains, nuts, seeds and animal products. The water-soluble vitamins include A in the form of beta-carotene, B6, B12, riboflavin, thiamin, niacin, folate, biotin, and C. Water-soluble vitamins are used immediately by your body or they are excreted in your urine. Unlike fat-soluble vitamins, they cannot be stored in your body so they should be replenished on a daily basis.
Fat-Soluble Vitamins
Four of the essential vitamins are classified as fat-soluble vitamins. Fat-soluble vitamins are found in fatty foods, such as vegetables oils, and the fatty components of meat, poultry, seafood, dairy products, grains, nuts, seeds and some fruits and vegetables. The fat-soluble vitamins include vitamins A, D, E and K. Fat-soluble vitamins that are not used right away are stored in the fatty tissue of your body. For this reason, they do not necessarily need to be replenished every day, but it is also easier to overdose on fat-soluble vitamins than on water-soluble vitamins. This is particularly true if you are taking vitamin supplements
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