who should not take b12 injections What Are Injections? And Are They Safe? Vitamin B12 Injections | Energy

Coeliac disease damages the small intestinal mucosa, whilst Crohn's disease affecting the terminal ileum directly impairs the absorption site

Patients with complex medical histories, unexplained symptoms, pregnancy considerations, immune disorders, active cancer concerns, severe allergies, medication interactions, or competitive sport obligations should avoid self-directed use and seek medical guidance

As damage accumulates with age and NAD+ falls, repair capacity is compromised (Fang et al., 2017)

Perfectly measurable

Because while conventional medicine tends to rely on a strict hierarchy of evidence, I think that can sometimes be a bit well sluggish

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