In this video, I explain the rationale for my new vitamin B12 recommendations and answer any questions you may have. I’ll start out with a discussion of the symptoms of B12 deficiency and then explain how I arrived at what I consider the optimal dose of vitamin B12 supplements in children, adults, the elderly, and during pregnancy. I’ll clarify why cyanocobalamin (not methylcobalamin) is the best type of vitamin B12 supplement and address the data suggesting B12 supplements cause acne, bone fractures, and lung cancer. I’ll also cover the healthiest food sources of B12 for those that don’t want to take supplements.
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