For most medical-device startups, the road to market is long and expensive. Not so for Readout Health, which is selling to consumers less than a year after the company was organized.
The product is Biosense, a pocket-sized device that samples a person's breath to measure ketone levels. Ketones, chemicals produced by the liver that are present in the bloodstream, are a key measure for people on the popular keto diet, which increases fat consumption and reduces carbohydrates.