Which deficiency is associated with neurological, skin, and circulatory issues?

• A. Vitamin C deficiency
• B. Vitamin E deficiency
• C. Vitamin B6 deficiency
• D. Vitamin K deficiency

Answer: (C)

Deficiencies in certain B vitamins disrupt nerve function, skin health, and red blood cell production, so when you see neurological symptoms with skin changes and signs of circulatory problems, vitamin B6 is the likely deficiency. Pyridoxine (the active form of vitamin B6) acts as a cofactor in amino acid metabolism and is essential for producing neurotransmitters (like GABA, serotonin, and dopamine), which keeps nerves and mood regulation functioning properly. It also plays a role in heme synthesis, which is vital for forming healthy red blood cells, so a deficiency can lead to subtle anemia and circulatory symptoms such as fatigue or pallor. On the skin, B6 supports skin and mucous membrane health, and deficiency can cause dermatitis, cheilitis, and glossitis.

In contrast, vitamin C deficiency mainly causes gum disease, easy bruising, and poor wound healing, not the specific combination of neurological, skin, and circulatory signs. Vitamin E deficiency can lead to neurological problems like ataxia and neuropathy but is less associated with the skin and circulatory symptoms described. Vitamin K deficiency primarily affects blood clotting and causes bleeding issues rather than a mix of neurological and skin changes.