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There are four types of B12 or cobalamin: Cyanocobalamin - this is a synthetic type of B12 so the body has to convert it to methylcobalamin then to adenosylcobalamin in order to be able to absorb it
I understand that it can make some people feel great and some people feel lousy
You just need to draw more units per dose
There may be some people who fall within the normal range but need a little more B12, but I reject the idea that they need a lot more. Dr Ayan Panja, a GP in St Albans with an interest in preventive medicine, disagrees
The subcutaneous layer may be less uniform, with areas of tissue thinning alternating with areas of normal thickness
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