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Because B12 shots are administered intramuscularly, they bypass the digestive system, allowing the body to absorb a much larger amount of B12 that would otherwise be lost during digestion
In older people, a B12 deficiency usually happens as a result of insufficient levels of either stomach acid or intrinsic factor that limit absorption
Gentler alternatives like niacinamide or PDRN have stronger safety profiles in the absence of definitive data and are reasonable substitutes during this window
May your titrations stay gradual, your pathways stay synergistic, and your protocols stay evidence-based.
Medicine 95 , e03588 (2016)
Always consult a qualified professional before using any research chemical.
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