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Study participants took high doses of their assigned vitamin for about a month
This is done under a doctors care
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
In these cases, tiaminal B12 injection is a good way to get enough B12 without going through the digestive system
Since there is no known hazardous threshold for vitamin B12, there is no upper limit
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