Nutrition and Vitamin Deficiencies · USMLE Step 1

An adult vegetarian who has not consumed dairy or eggs for several years presents with fatigue and paresthesias in lower limbs. Which vitamin deficiency is most likely?

  1. Vitamin B12 (cobalamin)
  2. Vitamin B2 (riboflavin)
  3. Vitamin C (ascorbic acid)
  4. Vitamin B6 (pyridoxine)
Show answer and explanation

Correct answer: Vitamin B12 (cobalamin)

Vitamin B12 is primarily found in animal products; long-term vegetarian diet without supplementation can lead to B12 deficiency causing anemia and neurologic symptoms.

Difficulty: Medium Question 12 of 21

Practice all 21 Nutrition and Vitamin Deficiencies questions

Keep practicing

More Nutrition and Vitamin Deficiencies questions