Why don’t you all piece together the Captain’s known movements and activities that day in chronological order so as to provide a clear timeline of the hours before the flight? Perhaps then we can see if, say:
any anomalous behaviour had occurred;
a slot existed when food could have been consumed;
he was at an extraordinary meeting where food could have been provided;
etc, etc, etc.
May I suggest one contributor starts off by listing his sightings of the Captain with the times and the nature of the activity – then someone else adds/ fills gaps, and so on.
Surely it is relevant to establish as much as possible about the Captain’s last hours before the flight and present it in a format that is easy to get a picture?