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 → causes Biotin deficiency |
Vitamin B9 (Folic acid / Folate) | Goat milk diet | Goat milk is deficient in folate → causes Megaloblastic anemia |

