I would start with weekly reminders that tell you how many times it is recommended to eat sweets, fish, meat, etc. and then daily make a list (perhaps with AI who understands food by looking at the photo!) to understand what is missing or where it has already been exceeded! And how many steps you do, maybe with smartwatches.
I’m an ICT Engineer, I care about this issue and i would like to collaborate with who agree with my vision