I'm looking after a dog who is really fussy food wise. It's to the point he is sick bile from what must be hunger. I've tried different food. I looked after him before when my last dog was still alive and he would eat at set times like she did and finish his food off no problem when he saw her eating. She's passed away and now this time around he's back to being fussy. His owner just free feeds so I've done what she said and leave it down and it goes untouched. He's been to the vet and is fine health wise and not underweight. Is there anyway to entice him to eat. All my 4 dogs were pigs when it came to food so this is new to me. I hate seeing the little fella being sick. There was one food he stuffed down and loved but it gave him the runs which was no good.