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When B12 runs low, the symptoms are often vague enough to get blamed on something else: persistent fatigue, brain fog, low mood, weakness, tingling in the hands or feet, shortness of breath, and difficulty losing weight
Approximately 20% is absorbed directly through the stomach wall , while the remaining 80% is absorbed through the small intestine specifically the upper portion known as the duodenum
A second collagenase injection was administered three days later
Intramuscular B is the standard treatment
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