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doi:10.1007/s40200-020-00526-z 139

As an essential nutrient, Vitamin B12 plays a pivotal role in brain function, the nervous systems health, and blood formation

For example, dogs who cannot absorb Vitamin B12 in their intestines do not respond to oral vitamin B12 supplementation

Research suppliers that maintain third-party Certificates of Analysis (COAs) and consistent laboratory handling standards are often preferred to help support purity verification, batch consistency, and reliable experimental outcomes

Vitamin B12 Intramuscular Dosage Guidelines Intramuscular B12 injections are often used for people with absorption problems