I tried it and I found that cream cheese and macadamia nuts work the best at keeping me full. tuna just made me hungry, but I did sneak in some bacon and sausage (small amounts) and still found that I was in DEEP ketosis. Just some suggestions.....but I'm wondering if this hinders you from getting into a good level of ketosis later on when your doing regular induction...not sure since I don;t keep accurate count of my carbs anyway. I just eyeball it for the most part, but I tested today and I'm in moderate ketosis...which of course is better than nothing!
Happy Fasting!