Trimethylamine N-Oxide (TMAO)
A gut-derived metabolite linked to atherosclerosis and cardiovascular risk.
Consider this test if:
- Building a cardiovascular-prevention plan and want a marker tied to diet and gut metabolism
- A diet heavy in red meat, egg yolk, or full-fat dairy alongside other heart-risk factors
- Family history of heart disease and looking beyond standard cholesterol numbers
- Tracking whether a shift toward a more plant-based diet changes your metabolic profile
- Already managing cardiovascular risk and adding context to ApoB and hs-CRP
- HSA/FSA eligible
- Typical results in 3-5 days · Reviewed by a real clinician
- Drawn at a CLIA/CAP-accredited lab near you ·
Pre-test considerations
Fast overnight, ideally 10 to 12 hours. Avoid fish and other marine foods the day before the draw, since they raise TMAO directly and can distort the result. Because the level tracks recent diet, keep your eating pattern typical in the days before testing if you want a representative baseline.
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What this test is for
TMAO is a compound your body produces in two steps: gut bacteria break down choline, lecithin, and L-carnitine from animal foods like red meat, egg yolk, and full-fat dairy into TMA, which the liver then converts to TMAO. Elevated TMAO has been linked to the development of atherosclerosis and to higher cardiovascular risk, independent of standard cholesterol numbers. It sits at the intersection of diet, gut microbiome composition, and heart health, which makes it useful both for people refining a cardiovascular-prevention strategy and for those curious how their diet and gut bacteria translate into a measurable metabolite. The level reflects recent diet and your individual microbial population, so it shifts with eating patterns rather than being a fixed trait. It adds context to a cardiovascular workup but is read alongside ApoB, LDL, hs-CRP, and overall risk rather than on its own.
What to expect
- 1 Book instantly
Click, book, done. Choose a convenient lab location near you. Transparent, up-front pricing.
- 2 Quick lab visit
Testing to fit your busy schedule, usually 15 minutes or less. Walk-in and appointments available.
- 3 Typical results in 3-5 days
Your results post straight to your dashboard as soon as the lab completes them.
- 4 Expert guidance
Included with Mito membership. A clinician reviews your results and your personalized action plan follows, with clear next steps.
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Every test at our cost
Members pay our cost on every test, with lab fees passed straight through. The full receipt is itemized, never padded.
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Upload past labs and watch your trends over time. Every marker and visit lives in one longitudinal record, so all your care stays together.
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Year-round clinician support
Text anytime and get clinician-reviewed answers. When you want to go deeper, 1:1 consultations are available at affordable rates.
All for $9/month
Order any test or consult without joining. For $9/month, members unlock member prices, trend tracking, and year-round clinician guidance.
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Frequently asked questions
View all FAQsHow does pricing work?
Every test shows the member price next to the standard non-member price, so you can see what membership saves you. The member price is our cost — covering the lab and what it takes to run the service — never a profit on the test itself; Mito makes its money on the $9 membership, not on marking up your tests. Membership is $9/mo, and you still pay the lab’s order fee. Prices are itemized before you pay, with no hidden fees.
Where do I get tested?
Choose a partner lab (Quest, Labcorp, or BioReference) at checkout. If your cart spans multiple tests, we consolidate the whole order onto a single lab so you only make one visit.
Is this eligible for HSA/FSA?
Yes. This test is HSA/FSA eligible, and you can pay with your HSA/FSA card at checkout.
When will I get my results?
Your results post to your dashboard once your lab completes them, then a clinician reviews them and your full analysis and personalized action plan (with clear next steps) follow. Turnaround varies by test: specialty assays and at-home kits take longer, and each test shows its expected turnaround before you buy.
Do I need a doctor’s order?
No. Mito provides the lab order for you, so you can book and get tested without a separate doctor visit.
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