Hi Karma,
I'm not the best to give advice on this but out of experience, don't give her too much heart all at once!
I gave Merry a little bit and he loved it so I thought great and gave him admittedly what must've been a ton for his little tum
and it made a nasty reappearance on the stairs during the night!
Merry wasn't keen on raw liver but does eat it when I flash fry it but again don't give her too much all in one go because I think it's quite rich and certainly comes out of our boy way too quickly when I give him lots
My only trouble with both of these was how to store it because it didn't seem that you could freeze it and it said on the packs I bought that once opened you must use immediately
So of course me being an eejit thought ooh let's not waste it so fed poor Merry as much as he'd eat in one go (which was probably enough for 5 meals in retrospect!). He was happy to eat it but it did reappear again far too quickly