Metabolism can be monitored using breath, and new devices use machine learning to determine the body’s metabolic rate in real time.
2021 Metabolic Monitoring is breath-based metabolic rate measurement (RER; Lumen, Pnoe, Cosmed K5, Breezing). 2022 DIY Health and Wellness has a different key insight (at-home genetic, microbiome and blood testing) and mentions PNOE in one example sentence; one example is not the same phenomenon (precedent pass 5, 2022-555: matching one sub-item). Nothing on metabolic or breath monitoring in 2023. Checker B matched an example sentence.
A trend is graded on whether the publisher keeps it, never as a hit or a miss (D6, D33).