This is exciting! Everyone should have easy turn key access to their essential biometrics

there is zero evidence that continually measuring ketones would be useful in any sense. That's different from the purported use of CGMs, which is to monitor for glucose spikes in response to specific foods (and even then, the evidence that monitoring glucose spikes in healthy people has any benefits is really thin).

If someone really wanted to measure their ketone levels there are simple urine tests that do it - there is no need to measure it continuously for healthy people.

It's nice to see know it all bias exists on hackernews too. This person clearly hasn't heard of the gki