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Animal studies have suggested that biotin deficiency can be teratogenic (causing birth defects) in some species, raising concerns that even marginal biotin deficiency might be undesirable in pregnancy

Solution: Rely on reputable compounding pharmacies or clinics known for stringent quality standards and third-party testing

A B12 injection may be worth discussing if: You have absorption problems: Conditions like Crohn's disease, celiac disease, or atrophic gastritis can reduce how well your body absorbs B12 from food, and past gastric surgery can have a similar effect

Getting B12 From Your Food When it comes to getting B12 naturally, your best sources are animal-based

Nutrients 6 (5), 19311944