Have you ever tried putting fido on a natural diet?

Ok, meat & bones are fine - although bread pellets i'm really not sure about - i've never heard of them. You have to realise that after many MANY years of being man's pet - these dogs probably need more than just bones to sustain them. I feed my dogs a healthy diet to prevent them from becoming overweight & such - it's not too expensive unless you over feed your dogs & end up giving them more each day than they need to be fed - or if you feed them more than once a day. I buy everything in cheap brands to save money - i get pasta or rice, cheap frozen vegetables & then if you go to the butcher or whatever you call it - see if they have dog mince/meat that you can buy coz it's VERY cheap but still good for the dog. I usually give the meat raw but cook the pasta or rice & vegetables, mix it all together - they love it, it's healthy & nutritious! You could also consider adding a gravy of some kind if you wanted to make it creamier! A couple times a week you can give them just a juicy bone to chew on & they will be happy. You could also try 1 day a week of just giving them a bowl full of raw chicken wings or raw chicken neck - GREAT for their teeth. You didn't say how often you exercise them but they shouldn't really be overweight if they get enough exercise & eat properly. I wish you well with your dogs!