We’re not sure why B12 shots for the elderly fell out of favor, but it may be time to reconsider the need and start increasing the daily amount of oral supplemental B12 since deficiency is pandemic in older adults due to age-related decreased production of gastric intrinsic factor necessary for absorption of vitamin B12 in the small intestine.
Intrinsic factor is a glycoprotein produced in the stomach. A number of studies suggest that B12 deficiency can cause irreversible damage to the brain and nervous system at levels only slightly lower than normal. Symptoms include fatigue, depression and poor memory. Unfortunately, these symptoms are too often immediately treated with pharmaceutical drugs without micronutrient deficiency consideration.
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