[reliablereason]

Yeah I was thinking on similar lines when it comes to food tracking. I did a study last year on how food consumption correlates with certain psychological features, but the lack of good data made the study very hard to do.

Self reported data is always annoyingly unreliable.

This product would probably be better than self reporting, but not good enough.

The privacy issue is annoying thing. If it was a on-device ai model things might be easier to accept. But I such a device is further in to the future.