Test hormone and nutrient markers to understand your body’s metabolism.
Customize Your Test
Your metabolism is the process by which your body converts food into energy and regulates essential functions like hormone balance, blood sugar control, and nutrient utilization. When metabolism is out of balance, it can affect energy levels, weight, and overall health.
This science-backed test measures key hormones, glucose markers, and vitamins that impact your body’s metabolism. You’ll test for:
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, we recommend that you wait at least 72 hours from your last dose before taking the test.
It is recommended that your blood sample is collected between 7 a.m. and 10 a.m. when DHEA-S levels are typically highest.
Your metabolism influences energy, weight, and overall wellness. Imbalances in hormones, glucose, or nutrients may contribute to symptoms such as fatigue or weight changes. This test may help you uncover insights about your health.
Symptoms such as fatigue, weight fluctuations, or brain fog may be linked to metabolic issues. Testing may help reveal whether hormones, glucose, or nutrient levels are contributing factors. This metabolism test can give you helpful information to discuss with your healthcare provider.
Symptoms such as fatigue, weight fluctuations, or brain fog may be linked to metabolic issues. Testing may help reveal whether hormones, glucose, or nutrient levels are contributing factors. This metabolism test can give you helpful information to discuss with your healthcare provider.
If you have concerning symptoms, consult a healthcare provider for guidance.
If you’re working on improving diet, stress management, or overall health, this test can help you monitor changes and stay on track.
1. Greenhill C, et al. The role of thyroid hormones in metabolism and energy balance. J Clin Endocrinol Metab. 2020;105(7):e2630-e2642. doi:10.1210/clinem/dgaa582. Available from: https://academic.oup.com/jcem/article/105/7/e2630/5820890
2. McAninch EA, Bianco AC. Thyroid hormone signaling in energy homeostasis and metabolism. Nat Rev Endocrinol. 2014;10(10):563-572. doi:10.1038/nrendo.2014.138. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC4044302/
3. Zhang Y, et al. Cortisol and metabolic health: mechanisms and clinical implications. Int J Mol Sci. 2023;24(21):15930. doi:10.3390/ijms242115930. Available from: https://www.mdpi.com/1422-0067/24/21/15930
4. Klein I, Danzi S. Thyroid disease and the cardiovascular system. J Clin Invest. 2022;132(1):e158451. doi:10.1172/JCI158451. Available from: https://www.jci.org/articles/view/158451
5. Bigler A. What is metabolism? Biomedical Beat Blog. National Institute of General Medical Sciences. Published June 5, 2024. Accessed November 21, 2025. https://nigms.nih.gov/biobeat/2024/06/what-is-metabolism
<p>1. Greenhill C, et al. The role of thyroid hormones in metabolism and energy balance. J Clin Endocrinol Metab. 2020;105(7):e2630-e2642. doi:10.1210/clinem/dgaa582. Available from: <a title="academic.oup.com" href="https://academic.oup.com/jcem/article/105/7/e2630/5820890" target="_blank">https://academic.oup.com/jcem/article/105/7/e2630/5820890</a></p> <p>2. McAninch EA, Bianco AC. Thyroid hormone signaling in energy homeostasis and metabolism. Nat Rev Endocrinol. 2014;10(10):563-572. doi:10.1038/nrendo.2014.138. Available from: <a title="articles" href="https://pmc.ncbi.nlm.nih.gov/articles/PMC4044302/" target="_blank">https://pmc.ncbi.nlm.nih.gov/articles/PMC4044302/</a></p> <p>3. Zhang Y, et al. Cortisol and metabolic health: mechanisms and clinical implications. Int J Mol Sci. 2023;24(21):15930. doi:10.3390/ijms242115930. Available from: <a title="mdpi.com/" href="https://www.mdpi.com/1422-0067/24/21/15930https://www.mdpi.com/1422-0067/24/21/15930" target="_blank">https://www.mdpi.com/1422-0067/24/21/15930</a></p> <p>4. Klein I, Danzi S. Thyroid disease and the cardiovascular system. J Clin Invest. 2022;132(1):e158451. doi:10.1172/JCI158451. Available from: <a href="https://www.jci.org/articles/view/158451" target="_blank" title="jci.org" rel="noopener noreferrer">https://www.jci.org/articles/view/158451</a></p> <p>5. Bigler A. What is metabolism? Biomedical Beat Blog. National Institute of General Medical Sciences. Published June 5, 2024. Accessed November 21, 2025. <a title="nigms.nih.gov" href="https://nigms.nih.gov/biobeat/2024/06/what-is-metabolism" target="_blank">https://nigms.nih.gov/biobeat/2024/06/what-is-metabolism</a></p>
Simply purchase this test online. A healthcare provider will review and approve your test requests; no healthcare provider visit is required.
Visit a Labcorp location near you for sample collection. Visits may be scheduled online.
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.
Assess total and free testosterone, SHBG and albumin levels to evaluate male hormone health.
Assess cholesterol, ApoB and inflammation for advanced cardiovascular risk screening.
Find out if you’re getting enough of nature’s sunshine vitamin.
When it comes to heart health, this test measures what matters most.
A blood test that gives a unique view of the iron levels in your body.
A slow metabolism means your body is converting food into energy at a reduced rate. Common signs may include:
These symptoms can be linked to conditions like hypothyroidism (underactive thyroid), which slows metabolism, other hormonal imbalances, or other conditions. If you notice these signs, consult a healthcare provider for evaluation.
This test measures key hormones (cortisol, TSH, Free T4, DHEA-S), glucose markers (fasting glucose, HbA1c), and nutrients (vitamin B12, folate, homocysteine) to provide a comprehensive view of your metabolic health.
This test is ideal for individuals who:
Whether you're managing a known condition or simply seeking insight into your health, this panel offers valuable information to support your journey.
You’ll be able to view your results for each test in your Labcorp Patient™ account as they become available. This test includes multiple tests, and you should be able to see all of your test results online within 1-2 days of when your samples arrive at our lab.
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.
