Health Testing, Compared

Start with a comprehensive blood panel to establish your baseline. This gives you data on metabolic health, hormones, nutrients, and inflammation. From there, add CGM if you want to optimize metabolic health or weight, or sleep tracking if recovery is a priority. Blood testing provides the foundation for all other optimization.

Blood tests show point-in-time markers like HbA1c (3-month glucose average) and fasting insulin. CGM shows real-time glucose responses to specific foods, exercise, and stress. Together, they provide both the big picture and daily actionable insights. Many people use CGM for 2-4 weeks to learn their patterns, then rely on periodic blood tests for ongoing monitoring.

No. Start with what addresses your specific goals. For general health optimization, annual blood testing is sufficient. Add CGM if you have metabolic concerns or want to lose weight. Sleep trackers help if sleep quality is an issue. Gut testing is useful for digestive problems. Build your stack gradually based on what data you'll actually act on.

A basic setup costs $200-500/year: one comprehensive blood test ($99-365) plus a fitness tracker you may already own. A moderate stack runs $500-1,500/year: quarterly blood testing, a dedicated sleep tracker like Oura ($299 + optional subscription), and occasional CGM use. Advanced optimization with multiple services can exceed $2,000-5,000/year.

Diagnostic testing is ordered by doctors to investigate symptoms or confirm conditions - often covered by insurance. Preventive/optimization testing is proactive, tracking biomarkers before problems arise. Most services on this site are preventive and direct-to-consumer. They complement but don't replace medical care. Many accept HSA/FSA funds.

Key longevity markers include: ApoB and Lp(a) for cardiovascular risk, HbA1c and fasting insulin for metabolic health, hs-CRP for inflammation, Vitamin D for immune function, and hormone levels (testosterone, thyroid, cortisol). Advanced markers like homocysteine, omega-3 index, and biological age tests provide deeper insights into aging.

Most direct-to-consumer health optimization services are not covered by traditional insurance since they're considered preventive/wellness. However, many are HSA/FSA eligible, making them tax-advantaged purchases. Some people submit receipts for partial reimbursement. Clinical tests ordered through your doctor for specific conditions may be covered.

For blood tests, 2-4 times per year is optimal when actively optimizing. Once stable, annual testing is sufficient. CGM is typically used in 2-4 week periods to learn your responses, then periodically to check progress. Sleep and HRV trackers provide daily data. Biological age tests are meaningful every 6-12 months to track intervention effects.

Sleep is often the highest-leverage intervention. Poor sleep negatively impacts glucose regulation, hormones, recovery, and cognitive function. Start by tracking sleep to identify issues, then address diet (blood tests and CGM provide guidance), and finally optimize exercise with HRV-guided training. Each area reinforces the others.

Reputable services use the same CLIA-certified labs (Quest, Labcorp) as your doctor. The blood draws and analysis are identical. What differs is interpretation - you receive results directly without a clinician filter. This works well for optimization but isn't a substitute for medical care. Always consult a doctor for concerning results or symptoms.