If only Rob were still with us, for there was a man who had done his homework on foodstuffs and supplements. Having said that a quick glance at his profile still shows his dietary intake and it still makes for good reading.
To quote just some of the content:
No red meat.
chicken or turkey - Only every few weeks; usually when out & no alternatives. No leg or wing meat, or skin.
No dairy produce.
No egg yolk.
I do like an occasional egg however, on rereading Rob's diet (I must admit we did discuss eggs as a big no,no at Leicester some years ago) I shall make a greater effort.
Perhaps his omelette made with egg whites may be the answer: Recently started using egg white for omlettes - a change for breakfast. Just add in tomatoes & herbs.