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B12 injection benefits people report most often include better energy and less fatigue
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Still, anyone with significant heart disease, uncontrolled hypertension, or history of cardiac events should consult their cardiologist before using any research compound
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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