Dietary factors causing Vitamin B deficiency

 

Vitamin

Deficiency-causing

substance / condition

Explanation

Vitamin B1

(Thiamine)

Polished rice diet

Polished rice lacks thiamine

  → causes Beri-beri

Vitamin B3

(Niacin)

Maize based diet

Maize is low in tryptophan

and niacin

  → causes Pellagra

Vitamin B7

(Biotin)

Raw egg diet

Contains avidin, which binds
biotin and prevents absorption

  → causes Biotin deficiency

Vitamin B9

(Folic acid

/ Folate)

Goat milk diet

Goat milk is deficient in folate

  → causes Megaloblastic anemia

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