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It belongs to the class of drugs known as biguanides, which help control blood sugar levels
A shot typically causes little to no pain
You may feel a slight pinch or warmth at the injection site, but discomfort is minimal
If you were B12-deficient, the first week often brings less fatigue and better workout tolerance
B12 Shots for Energy and Athletic Performance If you lead an active lifestyle, you know that consistent energy is non-negotiable
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