I have been using this food on my dogs for over 5 years now and they look so young. They do not look 8 years old. I would never switch food unless one day God forbid I lost my job. But if I had to switch, it seems to me that Blue Buffalo may be a good dog food at $39.99 for a 30 pound bag. Less expensive than Life's abundance. The only negative with Life's Abundance, I would say that this food being so high in quality, you will need to feed your dog less food. But not a bad negative huh?? A few months ago, I brought in a foster dog from a local shelter. The dog was a mess. Skin issues, smelly and truly disgisting looking. Of course after cleaning up the dog, he is eating Life's Abundance and is looking amazing and is so healthy too. It is really the best dog food on the market. I would never switch. My dogs are too much a part of my life for me not to give them the best.