The tech company Readout Health was founded in San Francisco, but it recently moved to St. Louis. Last week, the startup launched its first medical device, Biosense.
The device is manufactured in St. Louis, and according to the company, it’s “the first highly accurate and IP-protected nutritional ketosis device,” meant to help people manage their health “through simple breath samples multiple times a day.”

Mary Dinkel of St. Louis was part of the two-week Biosense device trial.
She said it was a much better way of managing a Keto diet, and that it was much less expensive and invasive than using finger-prick blood-test strips to track nutritional ketosis.
Tuesday on St. Louis on the Air, Sarah Fenske spoke with Dinkel, as well as Readout Health CEO, Jim Howard.
Hear their conversation:
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