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Though there have been no side effects documented from vitamin B12 use from either supplementation or food consumption, you should always check with your doctor prior to beginning supplementation of any type

DOI: 10.1080/15563650.2019.1606432 Aroda VR et al, "Long-term metformin use and vitamin B12 deficiency in the Diabetes Prevention Program Outcomes Study." Journal of Clinical Endocrinology and Metabolism, Feb

Kau et al

This is considered safe at low levels, but some individuals prefer to avoid synthetic forms

300 Integrating these diverse insights into a cohesive injury prevention strategy requires a multidisciplinary approach

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