Sardines are an outstanding omega-3 source for dogs — often more economical than salmon oil and extremely palatable. Dogs love the smell (your kitchen will smell interesting for a while). These biscuits bake firm and last well, making them a practical weekly bake.
⚠️ Before you start: Follow the 10% treat rule — treats should not exceed 10% of your dog's daily calories. Introduce new foods gradually. Never add salt, garlic, onion, xylitol, grapes, raisins, chocolate, macadamia nuts, or alcohol. If your dog has allergies, a health condition, or is on medication, check with your vet first.
Ingredients
- 1 can (120g) sardines in water — drained, not in brine or tomato sauce
- 2 cups (200g) oat flour
- 1 large egg
- 2 tbsp plain yogurt — no xylitol
- 1 tbsp parsley — finely chopped, optional (natural breath freshener)
- ½ crushed joint tablet — optional, adds glucosamine and omega-3
1
Mash the sardines
Drain the sardines thoroughly and mash with a fork until no large pieces remain. Small soft bones are safe and provide natural calcium.
2
Mix the dough
Combine the mashed sardines, egg and yogurt. Add the oat flour, parsley and crushed tablet if using. Mix until a firm dough forms.
3
Shape
Roll to 5mm thickness and cut into small shapes, or drop by teaspoon onto the lined tray and flatten slightly.
4
Bake and dry
Bake at 180°C for 25 minutes until golden and firm. For crunchier biscuits, turn the oven off and leave inside for another 10 minutes. Cool completely before storing.
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Sardines vs salmon oil
Canned sardines in water provide EPA and DHA alongside protein and natural calcium from the soft bones. Weight for weight, they often deliver more omega-3 than many supplement capsules and considerably more than salmon oil per gram. They are also considerably cheaper. The drawback: the smell lingers. Open a window.