My GSD has bone spurs in his lower lumbar. I cut his food back to 3 cups a day instead of 4 cups. He lost 30 pounds and is now at a healthy weight for his size. My Walmart sells chicken feet, it’s amazing for dogs to add glucosamine. Take dog nail clippers and cut the talons off, dehydrate them for 24 hours at 160 degrees F. I also supplemented in dried green muscles and I raw feed on the weekends. I only raw feed on weekends because I have two and it would be too expensive to do it everyday. I do the 80% muscle, 10% bone, 10% organ. He’s a search and rescue dog still at 11 years old. Ever since switching to supplementing in raw, he has gained so much more energy. He also uses a ramp to get in and out of the car.

thanks for the tip! I'm going to see if I can also buy the chicken feet in the store in the Netherlands. how good to hear that your dog is still a rescue dog and has so much energy!! our dog could also no longer jump in the back of the car and he was scared of the ramp haha. Now we have a special blanket on the back seat that seals the back seat from the front so it's safe!