can b12 injections cause side effects What Happens When You're Allergic to Vitamin Are B12 Shots Safe? Royal

Such people have made the assertion that grain-fed livestock was more likely to get B12-deficient because such a diet, would make animals have a lower rate of B12 production. In other words, there is a belief out there that grain-fed cattle are not producing enough vitamin B12 in their rumen regardless if theyre getting sufficient cobalt in their diet

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A deficiency can lead to a type of anemia called megaloblastic anemia, causing fatigue and weakness

J Diabetes Investig 5:621622