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Without enough B12, your body stores more fat instead of using it for fuel
If you're struggling with fatigue, brain fog, or poor digestion, B12 may be a missing link
Aminoglycosides, tetracyclines, and certain other antibiotics may alter gut microbiota composition, potentially affecting the small amount of vitamin B12 that is produced by colonic bacteria, though this is generally not clinically significant for patients receiving injectable B12 supplementation
Stay positive
For patients also using mealtime insulin, see our comparison of Humalog vs Humulin Humalog and Humulin R have different onset times and require different injection timing relative to meals
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