Elevated levels of both homocysteine and methylmalonic acid (MMA) are common metabolic indicators of vitamin B12 deficiency. Homocysteine, an amino acid, requires B12 for its conversion back to methionine. MMA, a byproduct... Read more »
Methylmalonic acid (MMA) and homocysteine are metabolites whose levels in the blood can help differentiate between vitamin B12 and folate deficiencies. Both deficiencies can lead to elevated homocysteine, while only a B12... Read more »
Methylmalonic acid (MMA), homocysteine, and vitamin B12 are interconnected biomarkers often evaluated together to assess vitamin B12 status. Elevated MMA levels, coupled with elevated homocysteine and/or low vitamin B12 levels, can suggest... Read more »