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are there side effects to b12 injections Potential Vitamin Injection Why do I feel worse
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I'll never take anything "methyl" again

Rosa Caballero, stated that the allergens involved in vitamin B12 reactions is likely to be a hapten, a small molecule that can trigger an immune response when it binds to a larger carrier protein

So, keep that water bottle handy and sip throughout the day

When we use oral B12, we look at the patients health and why they might not absorb B12 well

Then, they are given once a week for 4-8 weeks