What's this test for?

This test is ideal if you're concerned about your heart disease risk, especially if you eat a lot of red meat, eggs, or fish. It measures TMAO levels in your blood, which can indicate how well your gut is processing certain foods and whether this is affecting your cardiovascular health. Many people use this test when they have a family history of heart disease, elevated cholesterol, or want to understand how their diet is impacting their heart health.

What happens after I get my results?

You'll receive detailed doctor notes in simple language explaining what your TMAO level means for your heart health and how your gut bacteria and diet may be contributing to cardiovascular risk. These notes include personalized recommendations like dietary modifications, gut health strategies, or whether you should adjust your protein sources. You'll also get the standard lab report and can track your TMAO levels over time using our trends feature to see how dietary changes are impacting your results.

What's included in this test?

This test measures TMAO (Trimethylamine N-oxide), a compound produced when gut bacteria break down nutrients from animal products like red meat, eggs, and certain fish. Elevated TMAO levels are associated with increased risk of heart disease, stroke, and other cardiovascular problems. This single biomarker provides important insight into how your diet and gut health are affecting your heart disease risk.

How should I prepare for this test?

You should fast for 10 to 12 hours before your blood draw, which means no food or drinks except water during this time. It's also important to avoid eating fish and other marine foods the day before your test, as these can temporarily elevate TMAO levels and affect the accuracy of your results.

Who should consider getting this test?

This test is valuable for anyone with risk factors for heart disease, including high cholesterol, high blood pressure, or a family history of cardiovascular problems. It's especially useful if you consume a diet high in red meat, eggs, or fish and want to understand how your body is processing these foods. People with diabetes, obesity, or those following specific dietary patterns like keto or carnivore diets may also benefit from this assessment.

What symptoms indicate I may need this test?

While TMAO itself doesn't cause noticeable symptoms, you might consider this test if you have concerns about chest discomfort, shortness of breath, or other cardiovascular symptoms. It's also worth testing if you have unexplained inflammation, digestive issues, or you've been told you have elevated cholesterol despite dietary efforts. This test helps identify hidden cardiovascular risk that standard cholesterol panels might miss.

How can I naturally lower my TMAO levels?

Reducing your intake of red meat, egg yolks, and high-fat dairy can help lower TMAO production. Increasing plant-based foods, fiber-rich vegetables, and whole grains supports healthier gut bacteria that produce less TMAO. Some research suggests that supplements like DMB (found in some olive oils and balsamic vinegars), probiotics, and eating more polyphenol-rich foods like berries and green tea may help reduce TMAO levels naturally.

What is TMAO and why does it matter for heart health?

TMAO is a compound produced when gut bacteria digest certain nutrients found mainly in animal products, particularly red meat and eggs. When TMAO levels are elevated, it can contribute to inflammation, atherosclerosis (hardening of the arteries), and increased blood clotting, all of which raise your risk of heart attack and stroke. Understanding your TMAO level helps identify cardiovascular risk that traditional cholesterol tests don't measure.

What does a high TMAO level mean?

High TMAO levels indicate increased cardiovascular disease risk and suggest that your gut bacteria are producing excess amounts of this compound from your diet. This can contribute to arterial inflammation, plaque buildup, and increased blood clotting risk. Elevated TMAO may mean you need to modify your diet, particularly reducing red meat and eggs, and focus on improving your gut microbiome health.

How often should I retest my TMAO levels?

If you're making dietary changes to lower TMAO, retesting every 3-6 months is reasonable to track your progress. If your initial results are normal and you're not making major dietary changes, annual testing may be sufficient as part of your cardiovascular health monitoring. People with existing heart disease or high cardiovascular risk may want to test more frequently, every 3-4 months, especially when adjusting their diet or treatment plan.

Getting your blood test with us is easy, private & backed by the power of science.Long story short: In the test options, use the filters or search box to narrow your choices and find the test you want. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy! If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

How do I know which test to get?

In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option. Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.

When will my lab results be available?

Most test results will be available within 1–3 business days. Once they're ready, we'll send an email and text message to let you know. After your blood draw, just hang tight and don't worry – we'll keep you updated and in the loop! If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com, and we'll gladly help you.

Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?

Absolutely! We totally understand that errors can happen. No worries, we're here to help you. Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you. There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out. Our lab requires an address to be listed to generate an order.

Do you accept health insurance?

Only HSA & FSA is accepted. Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts. This policy applies to all insurance companies, including federal health insurance programs like Medicare. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

Can I cancel my order?

Yes. We get it – sometimes your needs change. As long as your samples haven’t been collected yet, we’re happy to help you cancel your order. If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com. You can read more about our cancellation policy here.

How can I find a lab location near me?

During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp). Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

TMAO Test - Heart Disease Risk & Gut Health Check

Getting your blood test with us is easy, private & backed by the power of science.

Long story short:

In the test options, use the filters or search box to narrow your choices and find the test you want.
If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!

754-799-7833

[email protected]

TMAO Blood Test for Heart Disease Risk and Gut Health

TMAO (Trimethylamine N-oxide)

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

What's this test for?

How should I prepare for this test?

What's included in this test?

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

TMAO Blood Test for Heart Disease Risk and Gut Health

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

1,000,000+ blood tests later, here's what our customers say