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While many people get enough B12 from their diet or oral supplements, some individuals may experience deficiency due to absorption problems, dietary restrictions, or certain medical conditions

On of my friends finally recovered after 5 months

There are several specific health conditions for the homeless population

Other Symptoms & Complications Headache Memory and learning problems Depression and anxiety Raynauds syndrome, in which the fingers turn white or blue from cold Swelling in the eyes, hands, legs and feet Small red spots, sores, damaged veins or calcium deposits under the skin Hair loss Ulcers in the nose, mouth or genitals Weakened nerves in the arms and legs Anemia or abnormal blood clotting Kidney disease and failure Heart disease Seizures and stroke Increased risk of infection, cancer, bone tissue loss and pregnancy complications (x, x, x) Though males and females manifest the same general symptoms, some symptoms may differ between them