Cooked salmon with sweet potato and peas. Salmon is naturally rich in omega-3s that support skin and coat, so extra fish oil usually isn't needed here.
A calcium source (finely ground eggshell or plain calcium carbonate) and fish oil (EPA+DHA, for skin, coat, and joints) are what owners most often add. At a small topper (around 10% of daily calories) the kibble underneath carries the balance, so they're optional — but the larger the fresh share of the bowl, the more the calcium source matters. Use the amount your veterinarian recommends. Salmon already provides omega-3s, so extra fish oil usually isn't needed here.
A topper sits on top of a complete-and-balanced kibble, which does the nutritional heavy lifting. The simplest safe amount is about 10% of your dog's daily calories — the level vets (Tufts, WSAVA) say you can add any plain topper without affecting the kibble's balance.
Many owners feed a bit more — up to about a quarter of the bowl. That's a common, reasonable choice, but the larger the fresh share, the more it matters to add a calcium source and check with your vet, since plain fresh food is low in calcium. Because fresh food is less calorie-dense than kibble, a quarter of the bowl by volume is only about 15–20% of calories.
This batch is roughly ≈13 kcal per tablespoon. Not sure of your dog's numbers? Build your bowl estimates it and portions this recipe for your dog.
These are the rules that keep a home-cooked topper safe. Figures are from FoodSafety.gov and the FDA.
These toppers are meant to sit over a complete-and-balanced kibble — around 10% of daily calories for a plain topper, or up to about a quarter of the bowl if you add a calcium source and your vet is on board. They are not a complete diet on their own. Introduce any new food gradually. Talk to your veterinarian before changing your dog’s diet, especially if your dog is a puppy, pregnant, or has a health condition, and work with a board-certified veterinary nutritionist for anything beyond an occasional small topper. Calorie figures are approximate.