Apr 20, 2025
Vitamin B12 helps make DNA, supports nerve cells, and prevents anemia. It's mostly found in animal-based foods, making vegetarians and older adults especially vulnerable to deficiency.
Source: canva
Nerve damage from long-term B12 deficiency often begins with numbness or “pins and needles” in your extremities.
Source: canva
Even with proper sleep, low B12 can cause constant exhaustion due to reduced red blood cell production.
Source: canva
Low B12 disrupts red blood cell production, sometimes causing pale or yellow-tinged skin due to broken cells.
Source: canva
B12 plays a role in serotonin production. A deficiency can lead to irritability, anxiety, or depressive symptoms.
Source: canva
A swollen, smooth, reddish tongue and recurring mouth ulcers can indicate B12-related inflammation.
Source: canva
B12 is vital for brain function. Deficiency may mimic early dementia or cause confusion, even in young adults.
Source: canva
B12 deficiency can affect the optic nerve, causing blurry or double vision, often reversible with timely treatment.
Source: canva
With fewer red blood cells to carry oxygen, you may feel lightheaded or short of breath.
Source: canva
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