![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
![Pathways for Hcy and MMA metabolism in humans. (A) Homocysteine is a... | Download Scientific Diagram Pathways for Hcy and MMA metabolism in humans. (A) Homocysteine is a... | Download Scientific Diagram](https://www.researchgate.net/publication/304491813/figure/fig1/AS:378215160926208@1467184929715/Pathways-for-Hcy-and-MMA-metabolism-in-humans-A-Homocysteine-is-a-branch-point.png)
Pathways for Hcy and MMA metabolism in humans. (A) Homocysteine is a... | Download Scientific Diagram
![Methylmalonic acid molecule. Increased plasma levels may indicate vitamin B12 deficiency. Stylized skeletal formula (chemical structure): Atoms are shown as color-coded circles: hydrogen (beige), carbon (grey), oxygen (red Stock Photo - Alamy Methylmalonic acid molecule. Increased plasma levels may indicate vitamin B12 deficiency. Stylized skeletal formula (chemical structure): Atoms are shown as color-coded circles: hydrogen (beige), carbon (grey), oxygen (red Stock Photo - Alamy](https://c8.alamy.com/comp/2BMPR0M/methylmalonic-acid-molecule-increased-plasma-levels-may-indicate-vitamin-b12-deficiency-stylized-skeletal-formula-chemical-structure-atoms-are-shown-as-color-coded-circles-hydrogen-beige-carbon-grey-oxygen-red-2BMPR0M.jpg)
Methylmalonic acid molecule. Increased plasma levels may indicate vitamin B12 deficiency. Stylized skeletal formula (chemical structure): Atoms are shown as color-coded circles: hydrogen (beige), carbon (grey), oxygen (red Stock Photo - Alamy
![Methylmalonic acid analysis using urine filter paper samples to screen for metabolic vitamin B12 deficiency in older adults - Bioanalysis Zone Methylmalonic acid analysis using urine filter paper samples to screen for metabolic vitamin B12 deficiency in older adults - Bioanalysis Zone](https://www.bioanalysis-zone.com/wp-content/uploads/2023/01/editorial-piece-37.png)