
I've had a similar conversation with my friend who has a 'miniature' Yorkie with serious joint problems, not helped by the fact that the dog weighs 12lbs - twice what a dog of her size should weigh!

It has taken time and perseverance with my friend to convince her that chinese/indian takeaway, cream buns and salted peanuts - on top of the daily food allowance! - does not constitute a healthy, balanced diet. My friend thought that by not sharing their food with the dog, they were depriving her and that the dog would feel unloved :rolleyes: I told her in no uncertain terms that she was being far more cruel by continuing to feed the dog junk and that they are basically killing the little dog :( She was horrified at me but agreed to cut out the junk food. 5 weeks later, the dog has lost about 5oz and already has more energy :) Now that she can see the effects, she is determined to keep up with the current regime :)
My own dog was a tad on the podgy side at one point. We simply cut his food back (much to his disgust as food is his favourite thing in the world. Ever. :rolleyes:) and increased his exercise with lots of swimming as his dodgy arthritic leg means walks have to be restricted.
My Newf has the opposite problem...we can't keep weight on her. People think she is fat but it's all coat. If they saw her wet, they'd think we starve her!! She's never been a big eater, just eats enough to get by on and she is extremely active so quickly burns off everything that she takes in. She is fit and healthy though so I don't worry about her too much.