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Oral B12 supplements have to pass through the gut, and absorption can be limited especially if you have digestive issues, take certain medications like metformin or antacids, or simply have low stomach acid
Vitamin B-12 plays a crucial role in the production of red blood cells and the conversion of food into energy
Your body makes NAD using building blocks called precursors
Also, the healthcare provider will determine the appropriate B12 dosage, depending on the current medical condition and diet
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