This common vitamin deficiency can mimic normal aging

Vitamin B12 deficiency is a common health issue that can mimic symptoms of aging, particularly in older adults and those with dietary restrictions. The article traces the historical discovery of B12 and explains how physiological changes with age affect its absorption.
Why it matters
Recognizing the symptoms of B12 deficiency is vital for geriatric health, as it is a treatable condition often misdiagnosed as natural cognitive or physical decline.
Two micrograms is an almost unimaginably small amount. It weighs less than a tiny fragment of a grain of table salt. Yet adults need only around this amount of vitamin B12 each day, depending on the guideline used, to support red blood cells, nerves and DNA production.
The article is a scientific and historical overview of a medical condition based on established research.
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