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Although dietary fiber has been associated with microbiome changes 75 , this is unlikely to account for the microbiome changes observed herein since fiber content was the same across diets
Drug/Laboratory Test Interactions: Persons taking most antibiotics, methotrexate and pyrimethamine invalidate folic acid and vitamin B12 diagnostic blood assays
A published case series on cobalamin disorders described subcutaneous B12 as a gentle, easy-to-use alternative to intramuscular injections
It delivers a high dose of the vitamin directly into the bloodstream, bypassing the gastrointestinal tract
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