I used to do whole, raw eggs for our old mastiff, but that got expensive. We often give our pooches fish, and they seem to love it. I catch my own fish, usually a few pounds a month, so that’s easier to sustain than buying extra eggs every week.
Eggs are cheap and so is tuna fish, but when you get to mastiff levels of consumption it could get pricey LOL
My mutty weighs in at 92 lb.