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Factors Influencing Normal Range: Age, diet, and overall health can influence vitamin B12 levels

This selective receptor interaction allows localized metabolic benefits with minimal endocrine disruption, differentiating it from traditional GH analogues in research use

Can older adults use it

They may need to rely on supplements or vitamin B12 injections to maintain adequate levels, and the frequency of supplementation will affect how long the vitamin stays in the body

Precautions and Professional Use Only a licensed healthcare provider should administer the injection

Funding No funding was received for this study