Lumen provides a handheld breath‑analysis device that measures exhaled CO₂ to identify whether a user is burning fat or carbohydrates in real time. The measurement syncs to a mobile app that generates data‑driven nutrition, exercise, sleep and stress recommendations and stores longitudinal metabolic data for users and health professionals. The business model combines device sales with subscription‑based premium coaching and optional professional‑grade analytics packages.
Funding
$62M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
PVFounders
Product
Problem
Many consumers lack an accessible, real-time method to assess how their bodies are metabolizing fuel, making it difficult to tailor nutrition, exercise, and lifestyle choices for weight management, energy optimization, and long‑term metabolic health.
Solution
Lumen offers a handheld breath‑analysis device that quantifies exhaled CO₂ to determine whether the user is primarily burning fat or carbohydrates at any moment. The measurement is performed in seconds and synced to a mobile app that delivers data‑driven, personalized recommendations for nutrition, training, sleep, and stress management. By continuously tracking metabolic flexibility, the system helps users adjust intake and activity to improve weight loss outcomes, boost energy levels, and support overall metabolic health. The technology is validated against gold‑standard metabolic carts and supported by peer‑reviewed research, ensuring clinical‑grade accuracy for both consumers and health professionals.
Target Audience
The primary customers are health‑conscious adults—including weight‑loss seekers, athletes, and individuals managing energy or metabolic conditions—who want actionable, real‑time metabolic feedback. Lumen also serves clinicians and wellness programs that require objective metabolic data to personalize patient care.
Features
- Integrated CO₂ sensor that provides instant fuel‑source readout (fat vs. carb) from a single breath.
- Mobile app with algorithmic coaching that generates daily nutrition, exercise, and recovery plans based on the latest metabolic reading.
- Cloud‑based analytics pipeline that stores longitudinal data, visualizes trends in metabolic flexibility, and flags deviations for user attention.
- FDA‑compliant data security with end‑to‑end encryption and HIPAA‑aligned storage for health‑professional collaborations.
- Research‑backed validation: accuracy comparable to laboratory metabolic carts, with multiple peer‑reviewed studies confirming efficacy.
- Support for women’s hormonal cycles and menopausal transitions, delivering cycle‑specific insights to optimize metabolism.
- Optional HSA/FSA‑eligible subscription tiers (annual or Duo membership) that unlock premium coaching content and priority support.
- One‑year warranty covering device and charging dock, with remote firmware updates to improve sensor performance.