Dr. Amber Rea, DVM, has spent over 15 years in clinical practice helping dogs and cats live longer, healthier lives through evidence-based nutrition. Frustrated by misleading pet food marketing, she developed the trademarked PSS™ (Pet Food Scoring System)—a simple, science-backed tool that cuts through label noise so owners can choose with confidence. Her growing library includes The Reasons We Feed: A Beginner’s Guide to Picking a Dog Food, The Cat’s Butler: A Beginner’s Guide to Picking a Cat Food, and the forthcoming Age Is Not a Disease (January 2026) for senior pets.