Trimethylaminuria (Fish Odour Syndrome) Test

This private urine test measures trimethylamine (TMA) and trimethylamine-N-oxide (TMAO). The all-in price is £506.25 and results are usually available in about 6 weeks.

This test is booked by enquiry. Call the clinic or use the enquiry form so the team can arrange it with you.

Written by Mr Stephen Lingam. Reviewed by Dr Mohammad Bakhtiar (GMC 4694470) on 20/08/2026.

What does the TMAU urine test measure?

It measures trimethylamine (TMA) and trimethylamine-N-oxide (TMAO) in urine.

Do I need a GP referral for this test?

No GP referral is needed. The test is booked by enquiry rather than online.

How long do results take?

Results are usually available in about 6 weeks.

How do I arrange the test?

Call 020 7183 0244 or complete the enquiry form on this page.