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A deficiency in vitamin B12 is the most common nutritional deficiency in patients who have had gastric bypass surgery (114), but deficiencies of folate, pyridoxine, thiamine, vitamin D, copper, zinc, iron, and calcium may also occur (202
This phase includes 1000 mcg (1 mg) injections daily for the first week
The third reality most suppliers won't emphasize: vial overfill variability exists even within the same production batch
All products are supplied strictly for laboratory research use only
The result is that a person can eat plenty of B12-rich food and still run low on circulating levels
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