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Which condition is associated with Vitamin B12 deficiency?

  1. Neuropathy

  2. Aphthous ulcers

  3. Scurvy

  4. Osteoporosis

The correct answer is: Aphthous ulcers

Vitamin B12 deficiency is primarily associated with neuropathy, particularly peripheral neuropathy, which often presents as numbness, tingling, or a "pins and needles" sensation in the hands and feet. This condition arises because Vitamin B12 is crucial for nerve health and the production of myelin, the protective sheath surrounding nerves. Prolonged deficiency can lead to serious neurological issues and cognitive impairments. While the other conditions mentioned can arise from different nutritional deficiencies or health issues, they are not primarily linked to Vitamin B12 deficiency. Aphthous ulcers, which are painful sores in the mouth, can occur due to various factors including stress and other vitamin deficiencies, but are not specifically tied to a lack of Vitamin B12. Scurvy is caused by a deficiency in Vitamin C, and osteoporosis is related to insufficient calcium and vitamin D, showcasing the essential role of specific nutrients in maintaining overall health.