Seed Oils in Pet Food: What You Need to Know

When it comes to choosing a dog food, most people focus on the protein source, whether it’s raw or kibble, or if it has “superfoods” listed on the bag. But one thing that almost no one talks about—and that you absolutely should be paying attention to, is the type of oils in your dog’s food… specifically seed oils.

Let me be clear, this is something that’s everywhere once you start looking for it. Seed oils such as canola, sunflower, soybean, corn, and safflower are extremely common in pet foods. You’ll see them a lot in canned and wet foods because they’re added directly into the formula for fat content and texture, but they’re also very common in kibble. What many people don’t realize is that kibble is often sprayed with fats and oils after baking to improve palatability. That’s why you’ll see things like canola oil listed on the label, even in foods that are marketed as “high quality” or “premium.”

The issue with seed oils isn’t just that they’re used frequently; it’s why they’re used and how they behave. These oils are cheap, easy to produce, and shelf-stable during manufacturing, which makes them ideal from a production standpoint. But nutritionally, they’re not always the best choice. Seed oils are high in polyunsaturated fats, which are much more prone to oxidation. That means when they’re exposed to heat, light, and oxygen (which happens during processing, storage, and even just opening the bag), they can go rancid much more easily. And rancid fats are not something you want your dog consuming on a regular basis, they can contribute to inflammation, reduce the overall quality of the food, and impact long-term health.

This is especially important when you think about how processed most commercial diets are. Kibble is cooked at high temperatures, which can already damage natural fats, and then oils are added back in at the end. Canned foods sit on shelves for extended periods of time. So even if a food looks great on the front of the bag, the type and stability of the fats being used still matter. And unfortunately, seed oils are one of those ingredients that can be easily overlooked because they don’t sound “bad” to the average consumer.

This is where choosing more stable fat sources can make a difference. Oils like coconut oil, for example, are higher in saturated fats, which makes them much more stable and less prone to oxidation. They hold up better during processing and storage, which means they’re less likely to go rancid compared to many seed oils. That doesn’t mean coconut oil is perfect or that it should be the only fat source in a diet, but it is a good example of a more stable alternative that aligns better with maintaining food quality over time.

At the end of the day, this isn’t about saying every food with seed oils is automatically bad. It’s about understanding that not all fats are created equal, and the details matter more than most people realize. The pet food industry is very good at highlighting ingredients that sound appealing, while quietly including others that aren’t talked about as much. That’s why it’s so important to flip the bag over and actually read the ingredient list. Look for where oils are coming from, how often they’re used, and what that means for the overall quality of the food.

Your dog’s nutrition isn’t just about protein or whether it’s raw versus kibble; it’s about the full picture. And once you start paying attention to things like seed oils, you start to see just how much is going on behind the scenes in commercial pet foods.