We have a four year old Pyrenean mountain dog. Had him since a puppy and he has always been very fit and healthy. However, since he was a puppy he has never been interested in food and is very thin. He is checked regularly by the vet and in good health. It's simply a case of not being able to get enough food into him. We are home al day with him, so he has the opportunity to have several meals a day. We have tried all kinds of canned dog food, dried biscuits, etc, but he's just not that interested - manages two small cans a day at best. We have just started giving him three eggs (in an omelette) each lunchtime, but struggle to find anything else he will eat. Any suggestions please?