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All Tests, Custom Tests
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Custom High Fat (Keto) Diet Health Test

Measure high fat keto diet health markers in one convenient panel.

A high fat or ketogenic diet can change the way your body uses energy. It may also affect important blood health markers, including cholesterol, inflammation, insulin response, and general wellness markers. This test brings together key markers into one panel to help you better understand your body while following a low-carb or keto lifestyle. It may be helpful if you want keto blood work before or after changing your eating habits or as part of ongoing wellness tracking.


This test is designed to support informed health conversations, and results should be reviewed with a healthcare professional who can interpret them based on your overall health, personal history, diet, medications, and risk factors. This test is not intended to diagnose, treat, confirm, or rule out any medical condition.

$ 69.0
$396
Custom High Fat (Keto) Diet Health Test
$ 69.0
$396

Test Details

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Sample Type: Blood & Urine
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Collection Method: In person at a Labcorp location
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Age: 18-100
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Results: 1-2 days from when your sample arrives at our lab
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HSA/FSA: Accepted
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Test must be taken by purchaser

Preparation: Fast for 12 hours (no food or drink, except water) before sample collection. If you’re taking a supplement containing biotin (also called vitamin B7 or B8, vitamin H, or coenzyme R), commonly found in products promoting nail, skin and hair health, it is recommended that you wait at least 72 hours from your last dose before sample collection.

About This Test

What's Tested

Why Consider This Test

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Check key keto diet-related health markers

Your heart, liver, kidneys, and metabolism all play a role in how your body responds to a high-fat or low-carb diet. Testing key markers such as cholesterol, ApoB, hs-CRP, and insulin resistance measures together can help provide a clearer view of your overall health.

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See how your body is responding to your diet

A keto or low-carb diet is not one-size-fits-all, and your health markers may shift over time. This test can help you establish a baseline and monitor key measures related to heart health, inflammation, blood sugar regulation, liver and kidney function, and general wellness.

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Support informed low-carb lifestyle choices

Healthy habits are more than tracking carbs. This test can help you look at internal health markers that may shift with diet, exercise, weight changes, and lifestyle. Discuss your results with your healthcare provider to support informed health conversations and get personalized guidance.

References:

1. American Diabetes Association. Nutrition therapy for adults with diabetes or prediabetes: a consensus report. Accessed July 31, 2026. https://diabetesjournals.org/care/article/42/5/731/40480/Nutrition-Therapy-for-Adults-With-Diabetes-or

2. National Lipid Association. Role of apolipoprotein B in the clinical management of cardiovascular risk in adults: expert clinical consensus. Accessed July 31, 2026. https://www.lipid.org/nla/role-apolipoprotein-b-clinical-management-cardiovascular-risk-adults-expert-clinical-consensus

3. Centers for Disease Control and Prevention (CDC). Testing for cholesterol. Accessed July 31, 2026. https://www.cdc.gov/cholesterol/testing/index.html

4. Schmidt T, Harmon DM, Kludtke E, Mickow A, Simha V, Kopecky S. Dramatic elevation of LDL cholesterol from ketogenic-dieting: a case series. Am J Prev Cardiol. Published 2023. Accessed July 31, 2026. https://pmc.ncbi.nlm.nih.gov/articles/PMC10121782/

How It Works

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Purchase Your Test

Simply purchase this test online. A healthcare provider will review and approve your test requests; no healthcare provider visit is required.

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Provide Your Sample

Visit a Labcorp location near you for sample collection. Visits may be scheduled online.

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Get Your Results

View your easy-to-read results online in your Labcorp Patient™ account, including Linked Accounts. For certain results that require prompt attention, you will also be contacted by phone or mail.

Patient Service Centers

Labs in more than 2,000 locations across the country.

Find a Location Near You
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Frequently Bought Together

FAQ

  • A keto diet can affect more than your weight or carb intake. This panel measures key blood and urine markers tied to heart health, inflammation, blood sugar balance, and liver and kidney function. It includes tests such as cholesterol, ApoB, hs-CRP, and insulin-resistance markers to help you and your healthcare provider better understand how your body is responding to a high-fat, low-carb diet.1,2,3

  • A low-carb health test is a blood health test that gives you a look at important markers that may shift when you follow a low-carb or high-fat eating plan. These may include markers related to heart health, inflammation, blood sugar balance, liver function, kidney function, and overall wellness.1,3


    This type of testing does not tell you if your diet is “good” or “bad.” Instead, it can help you and your healthcare provider look at your results in the context of your eating habits, health history, medications, lifestyle, and risk factors.1

  • Low-carb and ketogenic diets can affect people in different ways. Some people may see changes in cholesterol, triglycerides, blood sugar balance, insulin-related markers, electrolytes, or other general health measures based on their diet, lifestyle, and health history.1,3,4


    Because low-carb diets often involve changes to the types of foods you eat, you may also want to understand your vitamin and mineral levels. This panel gives a broader look at key blood health markers; however, it does not diagnose a deficiency or explain symptoms on its own. If you have concerns about nutrient intake, consider the Custom Micronutrient Test from Labcorp OnDemand.

  • It depends on your health goals, medical history, and guidance from your healthcare provider. Some people may want to establish a baseline with testing before starting a keto or low-carb diet, while others may choose to monitor key markers after they have been following their diet for a period of time.1,3


    Testing over time may help you and your provider review trends in heart health, inflammation, blood sugar balance, liver and kidney function, and general wellness. Your provider can help determine the testing intervals that are right for you.

  • Your testing will be performed in a CLIA-certified clinical laboratory. Labcorp provides leading-edge medical laboratory tests and services through a national network of primary clinical laboratories and specialty testing laboratories. Our labs perform regular quality assurance testing to ensure our results are accurate.

  • Your results will be provided to you through our secure online portal to view or print. Results are also made available through a secure portal to the independent healthcare provider who placed your test order.  If you are accessing your results through your Labcorp Patient™ account, all users linked to the account will have access to all OnDemand test results. Results may also be provided to a local, state, and/or federal health authority; for example, many states require the testing laboratory and physician to report test results for certain communicable diseases, such as COVID-19, to local or state health departments.  

     

    If you have questions or comments regarding the Labcorp Notice of Privacy Practices, or have a complaint about our use or disclosure of your PHI or our privacy practices, please contact: privacyofficer@labcorp.com, call us at (877) 234-4722 (877-23-HIPAA) and ask for the Labcorp HIPAA Privacy Officer, or send a written request to: HIPAA Privacy Officer, Labcorp, 531 South Spring Street, Burlington, NC 27215. You also may file a complaint with the Secretary of the U.S. Department of Health and Human Services.

  • Visit the Labcorp OnDemand® website to browse and purchase laboratory tests and create your Labcorp Patient™ account to view your results. All Labcorp OnDemand testing requires an order from an authorized healthcare professional. For your convenience, Labcorp OnDemand has contracted with independent professional entities (collectively, Providers) to deliver healthcare provider services. Visit a Labcorp location for sample collection; or, if using an at-home collection kit, collect your sample yourself. We’ll let you know when your results are ready and can be accessed through your Labcorp Patient™ account.

  • To align with clinical best practices, we’ve set an age maximum of 100 for consumer-initiated testing. This limit was set to encourage individuals in more advanced age groups - who may have complex medical needs - to receive personalized guidance about testing from their healthcare providers.

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