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Scientists conducting research must ensure their experimental protocols comply with research-use regulations
It is common for those who follow vegetarian or vegan diets to be vitamin B12 deficient the majority of the population relies on the consumption of meat in order to maintain a healthy level of vitamin B12
Long-term safety beyond 12 weeks has not been formally studied in large populations
Improved mood and mental clarity (11-14% of reviews) A subset of the energy-improvement group specifically mentions mood elevation, reduced anxiety, or "mental sharpness." This aligns with B12's role in neurotransmitter synthesis and methylation reactions affecting serotonin and dopamine pathways (Kennedy, Nutrients , 2016)
The glycine addition generally does not change the patient experience but may extend shelf life and maintain potency across the storage period
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