There's a lot of questions about the nutritional content of food which you can't answer just by looking at a photo, like "is that a glass of whole milk or non-fat", or "are those vegetables glossy because they're damp or because they're covered in butter". No amount of AI magic is going to solve that.
It will get to the point where it could know to ask those questions, like a human would. Clearly these tools are not there yet, but I think the models are probably good enough for this already.
https://news.ycombinator.com/item?id=44185892
There's a lot of questions about the nutritional content of food which you can't answer just by looking at a photo, like "is that a glass of whole milk or non-fat", or "are those vegetables glossy because they're damp or because they're covered in butter". No amount of AI magic is going to solve that.