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Doctors want to keep blood levels of B12 within range because of an imaginary fear of overdose

I must admit I'd feel very reticent to challenge a medical professional with 'Have you changed that needle?' Is it dangerous or something

As we move into 2026, researchers expect even more discoveries, more progress, and more lives changed for the better

B12-deficiency anemia can cause further complications, such as: difficulty walking uncontrollable muscle movements changes in smell or taste unintentional weight loss bleeding infection permanent brain or nerve damage B12 deficiency and anemia There are Diet: A person whose diet does not contain enough B12 can develop a deficiency after around 3 years, after which the body may begin to run out of stored B12