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Understanding Vitamin B12 Before we delve into the timeline of benefits, its crucial to understand what vitamin B12 is and why its so important for our bodies: Vitamin B12, also known as cobalamin, is an essential nutrient that plays a vital role in: Red blood cell formation DNA synthesis Neurological function Energy production Mood regulation Cognitive function Our bodies dont produce Vitamin B12 injections naturally, so we must obtain it through diet or supplements

While animal and in vitro studies have examined its activity, large-scale human clinical trials are limited, and its full safety and efficacy profile has not been established

Front Aging Neurosci 6:18

Safety depends on ingredients

The average serum vitamin B 12 concentration was 446 pmol/L