Vitamins are chemicals which are required in very small quantities to keep you healthy. If a particular vitamin is missing from your diet you will suffer from a deficiency disease. Vitamins, on the basis of their solubility, can be classified into two categories: fat soluble vitamins and water soluble vitamins. Fat soluble vitamins are those that are stored in the fat tissues of the body and in the liver. They get stored in the body until the body needs them. Vitamins A, D, E, K fall under this category of vitamins. There absorption process is the same as fats and incase, the absorption of fats gets affected their absorption also becomes poor.

Vitamin A:
Vitamin A, also known as retinol, is abundantly found in green leafy vegetables, carrots, red, yellow and orange fruits, milk, sweet potatoes, animal foods and whole eggs. It helps in the development and maintenance of the eyes, hair, skin, mucous membranes, immune functions and reproduction. Vitamin A helps in preventing infections. Vitamin A is named so because it was the first fat-soluble vitamin to be discovered. The deficiency of the vitamin causes night blindness.

Vitamin D:
Vitamin D helps in formation of healthy bones by promoting the absorption of calcium and phosphorus from the in taken foods. It is a well established fact that calcium and phosphorus are important components of bones. Vitamin D is unique amongst all vitamins for it can be synthesized in a baby's skin on exposure to sunlight. Its deficiency can cause rickets in children and osteomalacia in adults.
Vitamin E: Vitamin E is an antioxidant and neutralizes unstable free radicals, which can cause damage thereby providing protection against damaging substances. Breast milk is an exceptional supply of vitamin E and, when consumed in recommended amounts, satisfies a full-term, healthy infant's vitamin E requirements. Its deficiency may cause anemia in low birth weight children.
Vitamin K: Vitamin k is found in dark, green leafy vegetables and is also synthesized by bacteria in the intestine. Its main function is to help the blood clot and its deficiency causes excessive bleeding.

Bariatric Vitamins: What Every Gastric Bypass Patient Needs to Know About Post-Bypass Nutrition
performed, the greatly reduced stomach simply cannot absorb enough folic acid, vitamin B12, iron, and calcium. People who have had Roux-en-Y bypass surgery may also need supplemental vitamin D, vitamin E, and vitamin K. Long-term problems can...

Facts about vitamins
All that you need to know about vitamins What are vitamins? The word 'vitamin' comes from the words 'vital' and 'amines' because it was thought earlier that vitamins are actually amines. But this cannot be confirmed, as vitamins are believed...

Water soluble vitamins
Based on there solubility, vitamins are classified as fat soluble and water soluble vitamins. Water soluble vitamins are those which dissolve in water and don't get stored as they are eliminated in urine. They are required in a regular supply by the...