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All Dr. Bill’s Supplements are made in the United States and are regulated by the NASC (National Animal Supplement Council). Dr. Bill is an established pet nutrition expert and has been developing products since 1982. His years of experience ensure that safety, efficacy, and palatability are built into each supplement. Our supplements are made with high-quality, natural ingredients that are biologically appropriate for the cat and dog to provide proactive nutritional support for a variety of health concerns. Dr. Bill Barnett is an established pet nutrition expert. After graduating from the Iowa State College of Veterinary Medicine, Dr. Bill began an ongoing course of study in preventive medicine for pets, emphasizing keeping animals in good health rather than treating them once they became sick. His goal is to maximize the potential of the dog and cat – allowing them to live longer lives through optimum nutrition. Dr. Bill’s Pet Supplements products are the culmination of years of experience and knowledge, reflecting his proactive approach towards optimum nutrition and extending pet’s lives. These products have stood the test of time and have become valuable tools for veterinarians across the country. Updated with the very latest in scientific knowledge and ingredient technology, they are now available to discerning pet owners to keep their dogs and cats living long and happy lives. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.







