Yeah KC...they do pooh poo it!
The Mayo Clinic Proceedings spotlighted the UMMA test as preferred because of convenience and sensitivity. 41
In recent comparative studies, the UMMA test was found more sensitive than the serum B12 assay 5 or the SMMA test.20
A study found that patients with neurologic disturbances excreted larger amounts of UMMA than those without neurologic disorders 42 and recommend the UMMA assay use to attenuate an important cause of permanent neurologic disability.43
The UMMA test reflects tissue/cellular vitamin B12 deficiency and is the leading candidate as the "gold standard" assay for identifying tissue B12 deficiency.19,21
Here's some info from a vegan site...as many of them are deficient........
www.veganforum.com/forums/archive/index.php/t-256.html
I figure if Mayo uses it its gotta be the right one. But your right my Uro, My Oncologist, my Internist...never heard of it. I brought the info to my Uro and informed him that our local hospital does the test...now he's a believer.
Pat