Hi Jess,
I think you are really wise to look for a higher protein food. Senior dogs need more protein than adult dogs. I’d also like to suggest that you consider a potato free food. Nightshade plants, like potato, have been shown to aggravate some cases of arthritis. The protein in potato (called a lectin) can actually bind with the joint fluid causing inflammation in the area (may not be a problem for your furkid but better safe than sorry in my opinion).
Adding organic turmeric (the spice) to whatever food you feed can be very helpful too. Turmeric has been proven to be a powerful anti-inflammatory and quite effective in arthritic cases (needs to be organic as non-organic can be irradiated which damages the spice). The enzyme bromelain has also had positive results.
And, my girlfriend is using a product called Dasuquin by Nutromax for her elderly lab mix. She says she has seen noticable improvements while on it. I’m NOT AT ALL crazy about the ingredients in it but in her case she feels the good outweighs the bad in her senior pup..
Lastly, Mercola Healthy Pets has a joint supplement that looks really interesting. Personally, I’d try this one over Dasuquin. http://healthypets.mercola.com/sites/healthypets/pet-joint-supplements.aspx
I’m not sure if any of the foods listed in the link below are within your budget, and amounts of protein vary, but these are all grain and white potato free. (Thanks for making the list Marie!!) /forums/topic/grain-and-potato-free-dog-foods/
If a slightly lower protein food is better on the budget, you can always add lightly cooked egg whites (high protein and no fat), sardines packed in water (good source of anti-inflammatory omega 3 and will increase protein), high protein canned foods etc as toppers to the kibble.
Check with your vet on exercising. My frined had a similar issue to yours and found out too late that the extra walking did more harm than good for her pups joints. She ended up having to use water therapy (great exercise without causing negative impact on the joints).
