can b12 injections cause upset stomach Vitamin B12: Symptoms, Dosage & Toxicity Risks Vitamin B12 shots: Uses, benefits,

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Most people feel a difference within a day or two

I use 26g 1 inch needles to inject and use a separate larger needle to draw up liquid from ampoules I couldn't get from usual pharmacy so purchased from here

Talk to your doctor about your health concerns to verify that a nutritional deficiency is likely and that supplements such as lipo B12 or B12 injections would improve your health

B12 is water-soluble, meaning your body uses what it needs and safely eliminates the rest making it a low-risk, high-reward treatment for most people