Vitamin B1 is also known as

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  1. Riboflavin
  2. Thiamin
  3. Retinol
  4. Tocopherol

Answer (Detailed Solution Below)

Option 2 : Thiamin
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The correct answer is Thiamin

Concept:

Vitamins are organic compounds required in the diet in small quantities to perform biological functions.

Classification of Vitamins:

  • Fat-soluble vitamins: These are absorbed in dietary fats and stored in adipose tissues and the liver. These include vitamins A, D, E, and K.
  • Water-soluble vitamins are dissolved in water and readily excreted by the kidneys, requiring regular supplements. These include vitamin C and B complex vitamins.

Explanation:

  • Vitamin B1, also known as Thiamin, is a water-soluble vitamin that plays a critical role in energy metabolism and the functioning of the nervous system.
  • It is involved in the conversion of carbohydrates into energy by acting as a coenzyme in the metabolism of glucose.
  • The body cannot store thiamin in large amounts, so it needs to be consumed regularly through diet or supplements.
  • Deficiency in thiamin can lead to conditions such as beriberi (affecting the cardiovascular and nervous systems) and Wernicke-Korsakoff syndrome (commonly seen in alcoholics).
  • Good sources of Vitamin B1 include whole grains, legumes, nuts, seeds, and meat (especially pork).

Explanation of Other Options:

  • Riboflavin: Riboflavin is Vitamin B2. It helps in energy production, maintains healthy skin and eyes, and supports the nervous system. It is also involved in the metabolism of fats, carbohydrates, and proteins.
  • Retinol: Retinol is Vitamin A, which is crucial for vision, immune function, and skin health.
  • Tocopherol: Tocopherol is Vitamin E. It acts as an antioxidant and helps protect cells from damage caused by free radicals. It also plays a role in immune function and skin health.

Additional Information 

Vitamin

Main function

Deficiency

Principal source

B1(Thiamine)

Growth of body

metabolism

Beri-Beri

Cardiomegaly, indigestion

Meat, Milk,soyabean

B2(Riboflavin)

Strength eye

Growth of body

Opacities in cornea, scars on the tongue

Meat,soyabean,milk, green leafy vegetables

B3(Nicotinamide)

Controls the Cholesterol level, metabolism

Pellagra

Meat,groundnut,curd

B5(Pantothenic Acid)

Proper function of various enzymes, metabolism

Burning feet syndrome Achromotrichia

Meat, milk,eggs

B6(Pyridoxine)

Amino acid metabolism, Helps in the formation of blood

Skin diseases

Meat,liver,grains

B7(biotin) or Vitamin H

Metabolism protects skin and hairs

Anemia, Alopecia

Meat,eggs,milk,fruits

B9(Folic acid)

Required in red blood cell synthesis

Microcytic anaemia

Chocolate, groundnut,

Papaya, kiwi

B12(Cobalamin)

It contains cobalt

Metabolise nitrogen

RBC formation

Megaloblastic

anaemia

Meat,liver,yeast,eggs

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