So here is the logic in terms of the employer (company owner). Generally speaking, employers want their employees to be healthier so they use less pto, less health care, and to be more productive.

I think there are already some other apps where users can self report their fitness and get rewards through their respective company.

So the ultimate goal of the app is to get people to eat healthier. There are obviously many angles to this such as portion control, fiber intake, and meat, vegetables, and fruits ratio.

As to what constitutes 'healthy', it is pretty controversial, where if you ask 2 doctors, you'll get pretty much 3 answers.

Generally speaking our behavior goals for the user is to add more fruits, vegetables, and fiber specifically. When speaking with UCLA's head of oncology she pointed out that academic literature points out to most people lacking this in their diet and that consuming those items would lead to improved health.

Now as a previous commenter about overeating, at the very least the apple contains 12% fiber and 10% of vitamin C you need daily.