Which vitamin is associated with transmission of nerve impulses and is commonly found in pork, nuts, seeds, and whole grains?

• A. Niacin
• B. Biotin
• C. Thiamine
• D. Riboflavin

Answer: (C)

Thiamine is the vitamin tied to transmitting nerve impulses because its active form, thiamine pyrophosphate, is a key coenzyme in energy production for nerve cells. Neurons rely on steady ATP to maintain membrane potentials and send signals, and thiamine helps convert glucose into that usable energy through enzymes like pyruvate dehydrogenase. When thiamine is sufficient, nerve signaling can proceed smoothly; when it’s lacking, energy deficits can disrupt nerve function.

Foods high in thiamine include pork, nuts, seeds, and whole grains, which is why this vitamin fits the description in the question. While other B vitamins also support metabolism, they are not as directly linked to the nerve impulse transmission process as thiamine.