Best food for joints

At the minute my american bull dog cross is fed applaws both dry and wet and is given joint supplements and metacam can anyone suggest a food for her which would help loose her some weight and maybe have added joint care. It seems all the ones i look at are full of maize and oats etc which i would prefer her not to have as she has had allergies on her skin in the past.


I would love to feed raw and she loves it but it takes her a while to eat and in the past my two have had fisticuffs over fresh bones.

thanks for any help ps any good treat reccommendations also welcomed