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Subsequent biochemical work demonstrated that only two enzyme systems require forms of vitamin B12 in man: adenosylcobalamin in the conversion of methylmalonyl coenzyme A to succinyl coenzyme A by methylmalonyl-coenzyme A mutase, and methylcobalamin in the conversion of homocysteine to methionine by methionine synthase (139)
People who feel better physically are often more likely to keep showing up for themselves, make better food choices, and stay committed to long-term progress
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NICE recommends more frequent injections (alternate days until no further improvement) for patients with neurological involvement
Most people who lack intrinsic factor in their stomach have these antibodies in their blood
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