Vitamin stored in liver is:
A) Vitamin D
B) Vitamin K
C) Vitamin E
D) All of the above

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Hint: Liver is the store house of glucose, fat soluble vitamins and vitamin B12.

Complete Answer:
Liver is the largest gland in our body. It is located above the stomach and under the diaphragm. It is endodermal in origin.
- In humans it is dark red (reddish brown) in colour with about 1.4 kg weight.
- Liver has four lobes like right, left, quadrate and caudate lobe. The cells of the liver are called hepatic cells. Liver liver do not secrete any digestive enzyme but produce and secretes bile. Production of bile is the vital function of the liver. Bile is used in emulsification and absorption of fats. Fat soluble vitamins like vitamin D, E, K,& A are absorbed by lacteals inside villi. Presence of bile in the small intestine is necessary for the absorption of fat soluble vitamins.

- As for example, if a person's gallbladder is removed the digestion of fat and absorption of fat soluble vitamins are badly affected. Gallbladder is the storehouse of bile.
- Not only storing, concentration and metabolization of fat soluble vitamins is also inside the liver. Besides liver fat, soluble vitamins are also stored in adipose tissues.
- Vitamin D & Vitamin E is very good for liver health. Vitamin K protects the liver from cirrhosis. Vitamin K involves blood clotting.
- Liver also protects and maintains the chemical nature of vitamins.
- All the fat soluble vitamins require fat for their absorption and fats are emulsified by bile (produced by liver). So I'll make fat more efficient to absorb vitamins. Fat soluble vitamins dissolved in micelles (small fat molecules) that micelles enter into the mucosal cells of the small intestine by simple diffusion. The absorption of these vitamins is highly decreased in the absence of bile.

All the fat soluble vitamins like vitamin A, D, E and K stored in the liver. Hence the correct answer is Option ‘D’.

Note: Vitamin D, K & E stored in liver for liver health as well as protection of their nature.