Would be really helpful to be able to search your own food diary for a specific food and when you've eaten it.
Currently, if I would like to find out when did you eat let's say an Apple the last time, the only way to do this is to go through your calendar day by day and try to find the item from your entries for each day. When you have hundreds of days in the calendar, this becomes quite time consuming.
How this could work is just to see a red dot for example in the calendar section on each day you've eating the item you're searching for. This would make it easy to find specific items from your diary and also give a great visual overview of how often you're eating a specific food.