https://techcrunch.com/2022/09/22/limbo-seed/

In recent years there has been a flurry of startup activity aimed at commercializing blood glucose biosensors — aka, wearable tech that was originally developed for diabetes management. These continuous glucose monitors (CGMs) transmit near real-time data on glucose levels, providing instant feedback (via a companion mobile app) on how the body metabolizes different foods or responds to lifestyle decisions around exercise and sleep.

The biowearables, which are semi-invasive — typically worn on the arm with a sensing filament inserted just under the skin — were originally developed for diabetics and pre-diabetics who have a medical need to track their blood sugar because of insulin resistance. But the startup gambit is that opening access to CGMs more generally can offer broad health utility by giving all sorts of people a dynamic window onto what’s going on with their metabolism.