11 blood biomarkers + DII™ diet assessment.
At-home capillary collection with a personalized report.
Track more than pounds
A clearer view of your health during weight loss.
OneTest helps you monitor biomarkers related to nutrition, inflammation and metabolic health—areas a scale cannot show.
- ✓Monitor nutrition-related markers
See albumin, vitamin B12 and vitamin D in one report. - ✓Understand inflammation and diet quality
Combine hs-CRP with your Dietary Inflammatory Index™ assessment. - ✓Follow cardiometabolic markers
Track ApoA-I, ApoB, LDL, triglycerides, TSH, alkaline phosphatase and uric acid.
What OneTest reveals
Three areas of insight. One at-home test.
Use the results to ask better questions and discuss meaningful changes with your healthcare provider.
Nutrition-related markers
Monitor markers that help provide context for nutritional health during weight loss.
- Albumin
- Vitamin B12
- Vitamin D
Inflammation and diet
Connect a blood marker for inflammation with a structured assessment of diet quality.
- hs-CRP
- DII™ diet assessment
Cardiometabolic health
Follow a broader set of markers associated with cardiovascular and metabolic health.
- ApoA-I, ApoB and LDL
- Triglycerides and TSH
- Alkaline phosphatase and uric acid
A report you can use
Turn results into a measurable plan.
Your report organizes your biomarkers, DII™ score and personalized dietary recommendations so you can understand your baseline and follow changes over time.
11 blood markers in one place
Your dietary inflammatory potential
Personalized dietary guidance
Compare results when you retest
How it works
From your home to a useful report in three steps.
Collect at home
Complete the online diet questionnaire and use the included capillary device to collect a small blood sample.
Return your sample
Send it to the certified clinical laboratory using the included prepaid shipping materials.
Receive your report
Review your biomarkers, DII™ score and personalized dietary recommendations in one place.
Designed for practical monitoring
Simple at home. Detailed where it matters.
A convenient collection process and an organized report help you monitor more than the number on the scale.
Common questions
What to know before you order.
Can I use OneTest while taking a GLP-1?
OneTest is designed to help people monitor biomarkers related to nutritional, inflammatory and metabolic health. Discuss your results and any medication-related concerns with your healthcare provider.
Can OneTest help me manage GLP-1 side effects?
Yes. Muscle loss is only one of the changes happening under the surface on a GLP-1 — low energy, fatigue, and nutrient gaps are common too, and they often trace back to things a scale can't see. OneTest's panel gives you and your doctor a clearer read on what may be driving them: Vitamin B12 and D (linked to energy and fatigue), albumin (nutritional status and muscle-related risk), hs-CRP (inflammation), and TSH (thyroid and metabolism). OneTest measures albumin and other biomarkers associated with nutritional, inflammatory, and metabolic health.
How do I collect the blood sample?
Your kit includes instructions and a capillary collection device for collecting a small blood sample at home. Return it using the included prepaid shipping materials.
What will I receive?
You will receive a report with 11 blood biomarker results, your DII™ score and personalized dietary recommendations.
How often can I retest?
The ongoing-monitoring option is designed around retesting every 90 days so you can compare results over time.
OneTest for Longevity
Measure more than weight loss.
Start with a baseline or choose ongoing monitoring as your GLP-1 program progresses.
For educational and wellness purposes. OneTest is not a substitute for medical advice, diagnosis or treatment.