Vitamin B12 Allergies Are Rare But Real. Here's Why. And the Food Babe Weighs In.

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Vitamin B12 Allergies Are Rare But Real. Here's Why. And the Food Babe Weighs In.

Allergic reactions to vitamin B12 are rare, but real. The reason may sound strange, but it's true - an allergy to cobalt. What's going on here? The Food Babe has a possible suggestion, but it's ridiculous. Let's sort this out.