The easiest way to keep antioxidant add-ins helpful (and not disruptive) is to treat them like treats. A good rule: keep treats and add-ins under **10% of daily calories**, so at least 90% of intake remains a **complete-and-balanced** diet that reliably covers protein, essential fats, vitamins, and minerals (Jewell DE, 2024).
If your dog eats a therapeutic veterinary diet (for kidneys, urinary issues, allergies, GI disease, etc.), random add-ins can interfere with the diet’s purpose. In those cases, ask your vet which produce options fit the plan.
Skip or strictly limit add-ins for dogs with a history of **pancreatitis** or fat-sensitive digestion—while fruits and vegetables are generally low-fat, the “extras” habit often expands into richer toppers. Keep it plain and measured.
Also use caution with **food allergies** or suspected sensitivities. Introduce only one new item at a time for 3–5 days, so you can spot itching, ear flare-ups, vomiting, or diarrhea and identify the trigger. When in doubt, simplify: one tolerated add-in, small portion, consistent routine.