KnowraMethylmalonic acidLinked fromLinked fromThe 5 pages that link to Methylmalonic acid, each with the reason it gives.All 5Broader topic 1Related 3Compared with 1Vitamin B12Related: Elevated levels can provide biochemical evidence of functional B12 deficiency.Vitamin B12 deficiencyRelated: Its elevation helps reveal cellular B12 deficiency.CyanocobalaminRelated: Its blood concentration can help reveal functional B₁₂ deficiency despite cyanocobalamin use.HomocysteineCompared with: It can help distinguish B12 deficiency from folate deficiency when homocysteine is elevated.Combined malonic and methylmalonic aciduriaBroader topic: Its elevation distinguishes this combined disorder from isolated malonic aciduria.