We give all of our adult dogs and puppies NuVet plus supplements. It helps build a great immune system! We recommend that you purchase a 90-day supply to start off with your new puppy. You will see the different. If you have an older dog, 6+ or one that has joint problems please try the joint supplement. I used this years ago with Coco, my chocolate male. When he was 11 years old, he started having a hard time getting around due to his age, so I started giving him the NuVet joint supplement and within the first month he was able to move around so much better! It takes 3 to 4 weeks to see the deafferents, but boy does it works!