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Having gastric surgery also increases the risk of b12 deficiency
Cyanocobalamin is a synthetic form of vitamin B12 that can be converted to the natural forms methylcobalamin and adenosylcobalamin
Vitamin B2 is generally safe, and yellow urine from supplementation typically doesnt require treatment
In some cases, independent testing has revealed contaminants, degraded compounds, or dosages that are significantly higher or lower than advertised
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