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Prompt medical attention can improve quality of life, prevent long-term complications, and help rule out serious underlying conditions, including cancers that cause B12 deficiency

Unfortunately, some patients have difficulty absorbing an adequate amount of vitamin 12 because they do not produce enough stomach acid due to a condition called autoimmune atrophic gastritis which can cause a deficiency of vitamin B12

Supporters of HCG injections say they lead to more weight loss than dieting alone

Older people with gastrointestinal problems are more susceptible to B12 deficiency, due to increased issues with absorption