What is a key sign of vitamin B12 deficiency?

What is a key sign of vitamin B12 deficiency?

• A. Weight gain
• B. Anxiety
• C. Weakness
• D. Nausea

Answer: (C)

Weakness is a key sign of vitamin B12 deficiency due to the role that vitamin B12 plays in red blood cell production and the maintenance of the nervous system. When there is insufficient vitamin B12, the body cannot produce adequate red blood cells, leading to anemia. Anemia often results in symptoms such as fatigue, weakness, and pallor, as the body feels less oxygen-carrying capacity in the bloodstream. Furthermore, vitamin B12 is crucial for nerve function. A deficiency may lead to neurological issues, which can also manifest as weakness or fatigue, as the nervous system becomes compromised. Recognizing weakness as a common symptom helps in the identification and diagnosis of vitamin B12 deficiency, prompting necessary dietary adjustments or interventions to restore adequate levels of this important nutrient.

Weakness is a key sign of vitamin B12 deficiency due to the role that vitamin B12 plays in red blood cell production and the maintenance of the nervous system. When there is insufficient vitamin B12, the body cannot produce adequate red blood cells, leading to anemia. Anemia often results in symptoms such as fatigue, weakness, and pallor, as the body feels less oxygen-carrying capacity in the bloodstream.

Furthermore, vitamin B12 is crucial for nerve function. A deficiency may lead to neurological issues, which can also manifest as weakness or fatigue, as the nervous system becomes compromised. Recognizing weakness as a common symptom helps in the identification and diagnosis of vitamin B12 deficiency, prompting necessary dietary adjustments or interventions to restore adequate levels of this important nutrient.