Verbatim response from Claude
Blood Biomarker Retesting Frequency
Here are some general guidelines and recommended services:
General Recommendations
- Annual baseline panel – minimum for most healthy adults
- Every 3-6 months – if managing a condition or optimizing health actively
- Every 6 months – if making significant diet, supplement, or lifestyle changes
Recommended Testing Services
Everlywell – convenient at-home testing, good for periodic check-ins on specific markers
Function Health – comprehensive 100+ biomarker panel, designed for annual deep dives with trend tracking
InsideTracker – retests every 3-6 months and gives actionable lifestyle recommendations based on results
Quest Diagnostics / LabCorp – traditional lab testing, often covered by insurance for annual physicals
Levels Health – focuses on metabolic markers, good for ongoing glucose monitoring
Key Markers Worth Tracking Regularly
- Lipid panel (cholesterol)
- Blood glucose / HbA1c
- Thyroid (TSH)
- Vitamin D & B12
- Inflammatory markers (CRP)
- Complete metabolic panel
Bottom Line
Work with your doctor to personalize frequency based on your age, health goals, and any existing conditions. Many people find twice yearly testing gives useful trend data without being excessive.