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Copper peptides such as GHKCu have been shown in fibroblast studies to increase VEGF production and other proangiogenic growth factors, thereby supporting new capillary formation in the skin
Aminoglycosides, tetracyclines, and certain other antibiotics may alter gut microbiota composition, potentially affecting the small amount of vitamin B12 that is produced by colonic bacteria, though this is generally not clinically significant for patients receiving injectable B12 supplementation
In some cases of long-term severe deficiency, healing of the nerve damage may be extremely slow, requiring maintenance of B12 levels for months to achieve optimal recovery
Understanding Vitamin B12 Deficiency: Causes and Symptoms Common Causes of B12 Deficiency Poor dietary intake (common in vegans and vegetarians)
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