🐟 The Nutritional Value of Oily Fish in a Dog’s Diet Small oily fish are among the richest natural sources of long‑chain omega‑3 fatty acids , especially EPA (Eicosapentaenoic Acid)  and DHA (Docosahexaenoic Acid) . Dogs cannot produce meaningful amounts of these fatty acids themselves, so they must come from the diet. Including oily fish helps balance the fatty‑acid profile of meals, particularly when feeding farmed meats, which naturally contain lower omega‑3 levels. 🧠 Ho