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Both peptides are not approved for routine human use (sold for research purposes) and are banned in competitive sports [10]
When malabsorption is the issue, simply eating more B12-rich foods or taking standard oral supplements might not be enough
These treatment options dont work well for everyone, and in the case of blood transfusions, may come with complications like the body producing antibodies against the donor blood cells
Seiwerth, S., et al
You might be experiencing a Vitamin B12 deficiency
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