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If you have a vitamin B12 deficiency, you may feel tired all the time due to B12 deficiency anemia
In 2023, the FDA classified it as a Category 2 bulk drug substance , meaning it cannot be legally compounded by commercial pharmaceutical compounding pharmacies in the United States
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Cells in the lining of the stomach produce intrinsic factors, and if these cells are damaged or if the stomach is otherwise unable to produce it, vitamin B12 absorption can be impaired
Picking a peptide supplier you can trust starts with deciding which kind you actually need
Large doses of folic acid may also partially mask or worsen vitamin B deficiency by correcting anemia while allowing neurological damage to progress
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