Adding food items to a meal is the main task in the app and most people eat often items which they had consumed before. Considering this, the meal picker screens should receive more attention.

It's very time consuming to find and pick items which were used previously. I often need to jump back to another date, look for the exact product name which I used and then search for it again when adding it to another meal.

I suggest to:
* Share the history of used items across all meals. It's frustrating that I can't pick e.g. the cheese which I had in the morning also in the evening
* Indicate in the UI if an item was previously tracked (ideally with the count). When searching e.g. bread there are many items which are quite similar, seeing a tag with the count would help to only spend the effort to identify the most fitting item once.
* Make the history and favorites on the items picker screen searchable (so that also only these, without searching the global catalog, can be filtered)
* There is lots of whitespace on the - nowadays - big screens. There is room to e.g. show also the fat, protein, … values next to the kcal in the list