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Injections bypass the stomach and intestines, which can help when malabsorption is part of the problem
Overdosing can irritate the gastrointestinal tract, causing bloating or abdominal cramping
The buyer assumes full responsibility for ensuring the safe handling, storage, and use of this product
Cyanocobalamin is widely used because it is stable, inexpensive, well studied, and effective
For each eligible study, two authors (MM and AN) independently extracted data, which was then reviewed by a third author (JV) using a piloted spreadsheet, in accordance with Cochrane Collaboration guidelines ( Where relevant data were missing, attempts were made to contact corresponding authors
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