Oxidative stress is a normal byproduct of living—breathing, moving, digesting, and responding to the world. The body counters it with antioxidants and repair processes. In dogs, those defenses come from diet, internal production, and a web of nutrients that keep antioxidant systems “recharged.” That’s why the phrase vitamin-based antioxidants for dogs can be both useful and misleading: vitamins matter, but they’re rarely the whole story.
When owners search for the best vitamin-based antioxidants for dogs, they’re often looking for something calmer than a promise and more concrete than a theory: a way to support healthy aging, recovery, and everyday vitality. The most credible approach is to treat vitamins as part of a broader metabolic network, not as a stand-alone fix.