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Its also vital for making red blood cells

A complete blood count and B12 blood test will accurately determine your levels and help provide a clear look at what the problems may be

Vitamin B12 injections are crucial for those diagnosed with conditions like Pernicious Anemia, where the body cannot absorb Vitamin B12 from food

Injections are more effective for those with absorption issues or severe deficiency, but oral supplements work well for most people with mild deficiency and normal absorption

While there is ample evidence that B12, as an essential vitamin, has numerous health benefits, there is no evidence that B12 shots have greater benefit than a B12 supplement in pill form

Additionally, theres currently no established upper limit for vitamin B12 due to its low risk of toxicity