In this episode of The Deep Dive Podcast, we explore the science, technology, and real-world performance of the Lumen Metabolism Tracker — a sleek, portable device designed to measure your metabolic state through a simple breath test. Using advanced analysis of your exhaled breath, Lumen calculates your Respiratory Quotient (RQ) to determine whether your body is primarily burning carbohydrates or fats for fuel.

We break down how it works, from its real-time feedback to its seamless integration with a dedicated smartphone app that delivers personalised metabolic insights. You’ll hear about the user experience, from ease of use to reading consistency, and we’ll cover the pros and cons — including its premium price point, the learning curve for optimising metabolism, and the potential benefits for athletes, health enthusiasts, and anyone focused on weight management.

Whether you’re curious about biohacking your health, fine-tuning your nutrition, or using data to make smarter fitness decisions, this in-depth review will help you decide if Lumen is the right tool to unlock your metabolic potential.