I also heard from Maria De la Torre from Mebo research
I know there are some labs that do various types of Gut Microbiome testing, and that I know of, they all look for specific microorganisms. Metametrix is one of them, but I don't recommend it because the cost is approximately $400. If I hear of any others that are less costly I will let you know.
The MEBO-IGS program that will be starting in January or February 2013, will be an exploratory study that will not look for any specific microorganism, but would instead look for any and all that may show up. That's the beauty of this study and the reason MEBO is so very interested in this particular one. We aim to discover unknown causes of body/breath malodor, since most sufferers go undiagnosed. MEBO has also been negotiating rates with this university institute, and we believe that it will be less than $100 plus shipping. The return shipping does not have to be within 2 days, so it will be a lower shipping cost.
I asked her about it again its for those who tested negative for tmau through mebo however maybe other people can participate once the study starts.