Beta-Hydroxybutyrate
Beta-hydroxybutyrate is a ketone body produced when your body breaks down fat for energy, typically during fasting, low-carb diets, or prolonged exercise. Testing it helps assess metabolic state, ketone production efficiency, and whether your body is effectively using fat as fuel.
Athletes using ketogenic or low-carb protocols monitor beta-hydroxybutyrate to confirm they're in ketosis and gauge fat-adaptation for endurance training. It's also relevant for recovery nutrition planning and understanding energy substrate utilization during fasted training; however, it's not a standard performance metric and isn't necessary for most athletes following conventional training and fueling strategies.
Turnaround Time
3 days (up to 10 days)
Method
Spectrophotometric
Order online
Choose your lab and check out. We send your lab requisition automatically — no doctor visit needed.
Get your sample collected
Visit a lab service center near you for a quick blood draw (or book at-home phlebotomy where available).
See your results
Your results land in your Insider portal, ready to review and act on — that easy.
Your price
$85.00$255
3.0× less than retail
Versus the typical direct-to-consumer retail price for this test (illustrative — consumer prices vary by provider and region).
$85.00
$130.00
Peer-reviewed sources supporting the educational content on this page.
Beta-Hydroxybutyrate
Beta-hydroxybutyrate is a ketone body produced when your body breaks down fat for energy, typically during fasting, low-carb diets, or prolonged exercise. Testing it helps assess metabolic state, ketone production efficiency, and whether your body is effectively using fat as fuel.
The Beta-Hydroxybutyrate test starts at $85.00 at Labcorp or Quest. No doctor's visit and no insurance needed; we do not bill insurance. Fitomics Insider members pay from $75.00.
Results for the Beta-Hydroxybutyrate test are typically ready about 3 days after your draw, and up to 10 days for some samples. Your results land in your Insider portal.
No. When you order the Beta-Hydroxybutyrate test from Fitomics Research Labs, a licensed physician in our 50-state network reviews and signs your requisition after checkout, and it lands in your portal and inbox. Then visit any Labcorp, Quest, or BioReference patient service center for your draw; results post to your Insider portal.
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