Pet supplements are one of the easiest places to overspend, partly because the label claims are loud and the evidence is quiet. This section covers joint formulas, probiotics, omega-3s, skin and coat products, and multivitamins: what the ingredients actually do, where store brands match the premium bottles, and when a supplement is worth adding at all. As a licensed independent comparison broker (NPN #17028173) built on first-hand underwriting knowledge from our years as a pet insurance provider, we also flag which supplement costs plans sometimes offset through wellness add-ons and which ones come straight out of your pocket.