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According to The University of Maryland Medical Center, symptoms of vitamin B12 deficiency include tiredness, respiratory limitations, diarrhea, anxiety and tingling in the extremities. These symptoms arise from this par... More »

www.reference.com Health Medications & Vitamins Vitamins & Supplements

According to Harvard Medical School, a vitamin B12 deficiency can occur if a person is either not consuming enough vitamin B12 or her body cannot properly absorb the nutrient. A vitamin B12 deficiency can range from mild... More »

www.reference.com Health Medical Ranges & Levels

The signs of vitamin B deficiency vary depending on the type of B vitamin that is lacking, but symptoms of vitamin B12 deficiency typically include confusion, paranoia, anemia and tingling extremities, according to Healt... More »

www.reference.com Health Nutrition & Diets Nutritional Amounts & Limits
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Individuals suffering from vitamin B12 deficiency should take 500 micrograms of cyanocobalamin sublingually, 1,000 micrograms of intramuscular cyanocobalamin daily or 125 to 2,000 micrograms of cyanocobalamin by mouth, a... More »

www.reference.com Health Medications & Vitamins Vitamins & Supplements

Symptoms of untreated vitamin B-12 deficiency may include weakness, lightheadedness, tiredness, stomach upset, diarrhea and constipation. Additional symptoms may include easy bruising or bleeding, weight loss, pale skin,... More »

www.reference.com Health Pain & Symptoms

The signs of vitamin B deficiency vary depending on the type of B vitamin that is lacking, but symptoms of vitamin B12 deficiency typically include confusion, paranoia, anemia and tingling extremities, according to Healt... More »

www.reference.com Health Nutrition & Diets Nutritional Amounts & Limits

WebMD indicates that vitamin B12 is mainly used for the treatment and prevention of vitamin B12 deficiency, diseases resulting from vitamin B12 deficiency and pernicious anemia. Additionally, this vitamin is used to redu... More »

www.reference.com Health Medications & Vitamins Vitamins & Supplements