The DTCetc Face-Off Wellness Updated July 2026

Function Health vs Levels

Function Health and Levels take different routes to health insight. Function Health is a membership running 100+ blood biomarkers with clinician review for a broad picture of your health. Levels focuses on real-time glucose via a continuous glucose monitor and an app that links food to blood-sugar response. Pick Function for comprehensive bloodwork; pick Levels for live metabolic feedback.

DTCetc score

Function Health83/100
Levels80/100

Pricing tier

Function Health$$$$
Levels$$$
The verdict

Which should you pick?

Best forWellness shoppers

★ Quality 85/100 Visit Function Health →
Levels
80/100

Best forMetabolic health enthusiasts

★ Quality 85/100 Visit Levels →

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At a Glance

Comparison Between
Function Health
Function Health
Levels
Levels
Category Wellness Wellness
Speciality Fitness Trackers
DTCetc Score 83/100 80/100
Stereotype Health-conscious
Pricing Rating
$$$$$ This brand is moderately priced
$$$$$ This brand is moderately priced
Sustainability Score
52/100
This brand scores fair in sustainability
85/100
This brand scores excellent in sustainability
Quality Score
85/100
This brand scores excellent for product quality
85/100
This brand scores excellent for product quality

Who shops at Function Health Vs. Levels

Who shops at Function Health

Health-conscious people who want comprehensive, insurance-independent preventive lab testing with clinician-reviewed results.

More about Function Health →

Who shops at Levels

People looking to optimize their metabolism for a healthier life will appreciate Levels, a metabolic health company that uses blood glucose monitoring to help customers adjust their diet and exercise routines for improved mental clarity, athletic performance, and stable energy levels.

More about Levels →

Function Health Vs. Levels The Pros

Function Health's Pros

  • 160+ lab tests annually with testing 2x/year and on-demand
  • 100+ biomarkers chosen by top doctors, screening for 1000+ conditions
  • Clinicians review every result and flag issues
  • Personalized protocol plus insights from top doctors and researchers
  • Option to add MRI and CT scans anytime; HSA/FSA eligible
More about Function Health →

Levels's Pros

  • Rapid feedback on health
  • User-friendly app with content
  • Active Facebook community
  • Easy application and non-obtrusive sensor
  • Provides information and content
More about Levels →

Function Health's return policy vs Levels's Return Policy

Function Health's return policy

No data available

More about Function Health →

Levels's return policy

Levels has a strict return policy for their CGM hardware. Unfortunately, the brand is unable to accept CGM returns due to the fact that each piece of CGM hardware is prescribed specifically to each member by their partner pharmacy and cannot be redistributed. In the event of a refund or cancellation, the customer may keep or dispose of their Levels kit. It is important to note that prescription products used in the Levels program may not be shared, resold or redistributed under any circumstances. Therefore, customers should carefully consider their purchase before making a final decision. At this time, there is no information available on how long it takes for Levels to process a return, if applicable.

More about Levels →
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