Which disease is caused by deficiency of Vitamin B1 (Thiamine)?

Last Updated: 26 Jun 2026

This question examines a fundamental concept of human anatomy, physiology, health, nutrition, disease, or body regulation that frequently appears in SSC CGL General Science. Questions may also test blood components, vitamins, glands, sense organs, communicable diseases, and deficiency disorders. A familiar word is not automatically correct; qualifiers such as “largest,” “primary,” “deficiency,” “secreted by,” “carries,” or “controls” determine the answer. Restate the question in your own words, predict the answer before checking the options, and confirm that the explanation and correct-option field both point to Beri-beri.

APellagra

BBeri-beri

CAnaemia

DRickets

Correct Answer: Beri-beriYour Answer: B

Explanation

sease is caused by deficiency of Vitamin B1 (Thiamine)? Pellagra is incorrect because it refers to a different organ, substance, process, or medical association. Anaemia is also incorrect; it may be biologically important, but its principal role or defining feature is not the one being tested here. Rickets is incorrect because its function, source, target, or disease relationship does not match the question. Decide whether it concerns anatomy, physiology, blood, hormones, vitamins, immunity, pathogens, or disease. Then recall the exact source–function or deficiency–disorder pair and eliminate neighbouring concepts. Do not confuse an organ that produces a substance with an organ on which that substance acts, or a vector with the organism that causes a disease. Therefore option B, Beri-beri, is factually consistent with the stem, the marked correct index, and the explanation. Beri-beri is caused by vitamin B1 (thiamine) deficiency.

Important Notes

d is Beri-beri, corresponding to option B. The answer field, correct index, and both explanations must remain aligned.
Read the complete stem and identify the exact demand: organ, gland, hormone, cell, tissue, nutrient, enzyme, pathogen, vector, deficiency disease, body fluid, or physiological function.
Learn nutrition facts as nutrient–source–function–deficiency pairs. Vitamins and minerals can have several roles, but SSC questions usually ask the best-known primary association.
Pellagra, Anaemia, Rickets are eliminated here because none satisfies the precise requirement of the stem. Practising the reason for each rejection is more reliable than memorising only the correct choice.

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FAQ

SSC CGL Human Body FAQs

Common questions and clear answers for this topic.

Which body systems are most important for SSC CGL preparation?

The digestive, circulatory, nervous, and skeletal systems appear most frequently, along with sensory organs and basic endocrine functions.

How many bones are there in the human body, and is this commonly asked?

Yes, the human body has 206 bones, and questions about the largest, smallest, and total bone count appear fairly often.

What kind of blood-related questions come up in SSC CGL?

Questions usually cover blood group compatibility, the role of platelets in clotting, and basic facts about blood pressure and heart function.

Do I need detailed biochemistry knowledge for the human body section?

No, most questions focus on what each organ does and why, rather than the detailed biochemical processes behind it.

How can I retain human body facts more effectively for the exam?

Linking facts to real-life observations, like why pulse is checked at the wrist, makes them easier to recall than memorizing textbook lines.

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