![What's a better test for vitamin B12 deficiency: methylmalonic acid (MMA) or homocysteine? • The Blood Project What's a better test for vitamin B12 deficiency: methylmalonic acid (MMA) or homocysteine? • The Blood Project](https://www.thebloodproject.com/wp-content/uploads/2022/07/image-5.png)
What's a better test for vitamin B12 deficiency: methylmalonic acid (MMA) or homocysteine? • The Blood Project
![Metabolic pathway of methylmalonic acidemia. Methylmalonic acid (MMA)... | Download Scientific Diagram Metabolic pathway of methylmalonic acidemia. Methylmalonic acid (MMA)... | Download Scientific Diagram](https://www.researchgate.net/publication/329941525/figure/fig1/AS:708449889419264@1545919024076/Metabolic-pathway-of-methylmalonic-acidemia-Methylmalonic-acid-MMA-accumulates.png)
Metabolic pathway of methylmalonic acidemia. Methylmalonic acid (MMA)... | Download Scientific Diagram
![PDF] Methylmalonic Acid and Homocysteine as Indicators of Vitamin B-12 Deficiency in Cancer | Semantic Scholar PDF] Methylmalonic Acid and Homocysteine as Indicators of Vitamin B-12 Deficiency in Cancer | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/342170743079b86b4fb8b1db90a5686ca20dc64a/9-Table4-1.png)
PDF] Methylmalonic Acid and Homocysteine as Indicators of Vitamin B-12 Deficiency in Cancer | Semantic Scholar
![JCM | Free Full-Text | Diagnostic Performances of Urinary Methylmalonic Acid/Creatinine Ratio in Vitamin B12 Deficiency JCM | Free Full-Text | Diagnostic Performances of Urinary Methylmalonic Acid/Creatinine Ratio in Vitamin B12 Deficiency](https://www.mdpi.com/jcm/jcm-09-02335/article_deploy/html/images/jcm-09-02335-g001-550.jpg)
JCM | Free Full-Text | Diagnostic Performances of Urinary Methylmalonic Acid/Creatinine Ratio in Vitamin B12 Deficiency
![Nutrients | Free Full-Text | Association of Serum Vitamin B12 and Circulating Methylmalonic Acid Levels with All-Cause and Cardiovascular Disease Mortality among Individuals with Chronic Kidney Disease Nutrients | Free Full-Text | Association of Serum Vitamin B12 and Circulating Methylmalonic Acid Levels with All-Cause and Cardiovascular Disease Mortality among Individuals with Chronic Kidney Disease](https://www.mdpi.com/nutrients/nutrients-15-02980/article_deploy/html/images/nutrients-15-02980-g001.png)
Nutrients | Free Full-Text | Association of Serum Vitamin B12 and Circulating Methylmalonic Acid Levels with All-Cause and Cardiovascular Disease Mortality among Individuals with Chronic Kidney Disease
![Methylmalonic acid, vitamin B12, renal function, and risk of all-cause mortality in the general population: results from the prospective Lifelines-MINUTHE study | BMC Medicine | Full Text Methylmalonic acid, vitamin B12, renal function, and risk of all-cause mortality in the general population: results from the prospective Lifelines-MINUTHE study | BMC Medicine | Full Text](https://media.springernature.com/m685/springer-static/image/art%3A10.1186%2Fs12916-020-01853-x/MediaObjects/12916_2020_1853_Fig1_HTML.png)
Methylmalonic acid, vitamin B12, renal function, and risk of all-cause mortality in the general population: results from the prospective Lifelines-MINUTHE study | BMC Medicine | Full Text
![JCM | Free Full-Text | Diagnostic Performances of Urinary Methylmalonic Acid/Creatinine Ratio in Vitamin B12 Deficiency JCM | Free Full-Text | Diagnostic Performances of Urinary Methylmalonic Acid/Creatinine Ratio in Vitamin B12 Deficiency](https://www.mdpi.com/jcm/jcm-09-02335/article_deploy/html/images/jcm-09-02335-g002.png)
JCM | Free Full-Text | Diagnostic Performances of Urinary Methylmalonic Acid/Creatinine Ratio in Vitamin B12 Deficiency
![Full article: Clinical relevance of testing for metabolic vitamin B12 deficiency in patients with polyneuropathy Full article: Clinical relevance of testing for metabolic vitamin B12 deficiency in patients with polyneuropathy](https://www.tandfonline.com/cms/asset/1e7562bd-f8b0-470f-90ef-c1540cae31de/ynns_a_1985751_f0004_ob.jpg)
Full article: Clinical relevance of testing for metabolic vitamin B12 deficiency in patients with polyneuropathy
![Sthanu on X: "@AaronGoodman33 methylmalonic acid (MMA) Homocysteine and MMA are elevated in B12 deficiency while only homocysteine, and not MMA, is elevated in folate deficiency. https://t.co/QcXv60I02j" / X Sthanu on X: "@AaronGoodman33 methylmalonic acid (MMA) Homocysteine and MMA are elevated in B12 deficiency while only homocysteine, and not MMA, is elevated in folate deficiency. https://t.co/QcXv60I02j" / X](https://pbs.twimg.com/media/Fc_Oh4BaAAEuXfj.jpg)
Sthanu on X: "@AaronGoodman33 methylmalonic acid (MMA) Homocysteine and MMA are elevated in B12 deficiency while only homocysteine, and not MMA, is elevated in folate deficiency. https://t.co/QcXv60I02j" / X
![Relationship between methylmalonic acid, homocysteine, vitamin B12 intake and status and socio-economic indices, in a subset of participants in the British National Diet and Nutrition Survey of people aged 65 y and Relationship between methylmalonic acid, homocysteine, vitamin B12 intake and status and socio-economic indices, in a subset of participants in the British National Diet and Nutrition Survey of people aged 65 y and](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fsj.ejcn.1601540/MediaObjects/41430_2003_Article_BF1601540_Fig1_HTML.gif)
Relationship between methylmalonic acid, homocysteine, vitamin B12 intake and status and socio-economic indices, in a subset of participants in the British National Diet and Nutrition Survey of people aged 65 y and
![PDF] Cobalamin (vitamin B12) deficiency detection by urinary methylmalonic acid quantitation. | Semantic Scholar PDF] Cobalamin (vitamin B12) deficiency detection by urinary methylmalonic acid quantitation. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/a2ce78f73f527943bb9cb57d8bdc808a16001e5a/2-Table1-1.png)