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Large amounts of B-12 are found in such foods as fish and beef, with smaller amounts in dairy products like cheese, yogurt, and eggs
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This comprehensive comparison examines both approaches through the lens of scientific evidence, practical application, and real-world results to help you determine the most effective B12 supplementations deliver equal results
The strongest support comes from clinical evidence focused on treating vitamin B12 deficiency, not from general wellness claims What science supports The NIH Fact Sheet for Health Professionals shows that intramuscular B12 injections are effective at raising blood B12 levels and correcting deficiency
Once considered to be an essential vitamin, it has since been discovered that inositol can be produced by the liver and the kidneys
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