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March20 podcast Dr Hazen
anti-TMA pill in a year or 2 ? (scroll 12 mins)

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MEBO Karen
at UK Findacure conf 2020

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MEBO - UBIOME study 2018



MEBO Gut Microbiome Study
"Microbial Basis of Systemic Malodor and PATM Conditions (PATM)"
Funded by uBiome Research Grant

"Microbial Basis of Systemic Malodor and PATM Conditions (PATM)"

Dynamics of the Gut Microbiota in
Idiopathic Malodor Production

Started May 2018 - Ongoing

Current people sent kits : 100/100
3 kits per person


Participation info : LINK English

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BO Sufferers Podcasts



TMAU Petition world
TMAU UK end total:262
TMAU UK ends 23/01/20
TMAU Petition USA end total 204
USA : Moveon open
TMAU (Dominican)
Metabolomic Profiling Study

Start : Aug 2016
Stage 1 : 27 Canadian volunteers to test
Latest click here (26 oct) :
17 samples returned

Note : Stage 1 is Canada only.
Return cut-off date : passed
Analysis can take 6/8 weeks
Analysis start in/before Nov
MEBO Research is a
NORD Member Organization
See RareConnect TMAU

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Denver TMAU Test Lab survey click here
click to Read more/less

USA survey for anyone who wants to improve Denver TMAU test

begun : Dec22
end : no ending for now

A trainee genetic counselor is working at the Denver TMAU test lab. Probably as part of her training. As a project she wishes feedback on any aspect of the Denver TMAU test and process. You can fill in the survey and/or email her (email address is in survey). It's meant for USA people, but perhaps others can give their view too (as we have so few opportunities).

quote from her rareconnect post

"Hello all! I wanted to make you aware of a research study being conducted to better understand the experience and needs of individuals with trimethylaminuria with a goal of being able to create improved patient and healthcare provider education materials. Any participation is completely voluntary and all responses remain confidential. Feel free to use the contact information within the link with any questions or share the survey with others with TMAU."

see this post for more details

Tuesday, August 24, 2010

Carnitine : not just choline to be avoided in TMAU diet

Those interested in TMAU are very aware that choline is to be kept minimal in the disorder, since gut bacteria can metabolize the choline, with one resulting metabolite being trimethylamine (TMA). However it may be often overlooked that another compound that can result in TMA production is carnitine.

The 'avoidance' diet strategy for TMAU mainly involves :

1. Keeping anything that can result in TMA to a minimum
obvious examples :
  • Choline (remember this is an essential nutrient though)
  • Any food with high TMA-oxide content, since the TMA-oxide is broken down to TMA in our gut (e.g. seafood)
  • Carnitine

2. Avoiding anything that inhibits the FMO3 enzyme
So far, only indoles in cruciferous veg have been proven to inhibit the enzyme. It's possible more foods are to be discovered.

In humans, most carnitine in the diet is derived from lysine and methionine, so anything high in these 2 amino acids will naturally result in the most carnitine. This shows how difficult it is to avoid, given that lysine and methionine are in many foods. 2 common main sources are red meat and in the whey portion of dairy foods. But red meat is the most abundant food by far, as can be seen in the table in this page : Office of Dietary Supplements info on carnitine

For those that feel only trimethylamine causes their odor, perhaps carnitine is worth further investigation to see if this could be a secret source of TMA in your diet. In general, it seems that those on a strict vegetarian or vegan diet may have very little carnitine in their diet, but it must be remembered that lysine and methionine are essential amino acids.


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