Tuna & Parsley Fresh Breath Dog Treats – Savory Snacks With a Purpose

If your dog’s kisses could use a little help, these homemade treats have your back. Tuna & Parsley Fresh Breath Dog Treats are simple to make, budget-friendly, and packed with ingredients you can feel good about. They’re crunchy, savory, and naturally help freshen breath thanks to parsley and mint.

Even picky pups usually go for the aroma of tuna, so these are a smart choice for training or everyday rewards.

What Makes This Special

These treats aren’t just tasty—they’re designed with a job to do. Fresh parsley and mint help combat doggy breath while oats and eggs bring fiber and protein. Using canned tuna adds omega-3 fatty acids for skin and coat health.

Plus, making them at home lets you control ingredients and avoid fillers, artificial flavors, and excess salt found in many store-bought treats.

Another advantage is the texture. You can bake them a little longer for extra crunch or keep them slightly softer for senior dogs. The dough comes together in minutes, and you can cut the treats into any shape or size that fits your pup.

Ingredients

• 1 (5–6 oz) can tuna in water, drained well
• 1 cup oat flour (blend rolled oats into flour if needed)
• 1/2 cup rolled oats
• 1/4 cup fresh parsley, finely chopped
• 1 tablespoon fresh mint, finely chopped (optional but helpful for breath)
• 1 large egg
• 2–3 tablespoons water or low-sodium broth, as needed for dough
• 1 tablespoon olive oil or flaxseed oil (optional for texture and healthy fats)

Instructions

1. Preheat your oven to 325°F (165°C).
   

   Line a baking sheet with parchment paper or a silicone mat.

   
   
2. In a bowl, flake the drained tuna with a fork until there are no large chunks. Stir in the egg, parsley, and mint until combined.
3. Add the oat flour and rolled oats. Mix until a dough starts to form.
   

   If it’s too dry, add water or broth 1 tablespoon at a time. If it’s too sticky, sprinkle in a bit more oat flour.

   
   
4. For cut-out treats, roll the dough between two sheets of parchment to about 1/4-inch thick. For simple bites, press the dough into a rectangle and cut into small squares with a knife or pizza wheel.
5. Transfer to the prepared baking sheet.
   

   For extra crunch, lightly poke each treat with a fork to help steam escape.

   
   
6. Bake for 18–22 minutes, until the edges are set and the tops look dry. For crispier treats, turn the oven off and let them sit inside for another 10 minutes.
7. Cool completely before serving. Cooling helps the treats firm up and keeps them from getting soft in storage.

Storage Instructions

• Room temperature: Store in an airtight container for up to 3 days if they’re very dry and crisp.
  

  If they feel at all soft, refrigerate.

  
  
• Refrigerator: Keep in a sealed container for up to 7 days. Place a small piece of paper towel inside the container to absorb moisture.
• Freezer: Freeze for up to 3 months. Thaw a few at a time in the fridge or at room temperature before serving.
• Moisture control: If treats soften, return them to a 300°F (150°C) oven for 5–7 minutes to re-crisp, then cool fully.

Why This is Good for You

Fresh breath support: Parsley and mint contain chlorophyll and natural oils that help neutralize odors from the mouth.

While they don’t replace dental care, they’re a helpful daily boost.

Lean protein and omegas: Tuna offers quality protein and omega-3 fatty acids, which can support skin, coat, and joint health. Using tuna in water helps keep the fat content reasonable.

Gentle grains: Oats are a good source of soluble fiber and are easier on many dogs’ stomachs compared to wheat. They also help create a hearty, satisfying crunch.

Simple, clean ingredients: No artificial flavors, preservatives, or excessive salt.

You control everything that goes into your dog’s snacks.

Common Mistakes to Avoid

• Using tuna in oil or with added salt: Opt for tuna in water with no added salt. Dogs don’t need the extra sodium or oil.
• Overdoing the herbs: Parsley and mint are great in moderation. Stick to the amounts listed to avoid tummy upset.
• Serving too large: These are treats, not meals.
  

  Keep portions small, especially for tiny dogs or those watching calories.

  
  
• Skipping the cool-down: Packaging warm treats traps steam, leading to soggy, mold-prone snacks. Cool completely first.
• Ignoring allergies: If your dog has fish or egg sensitivities, choose an alternative from the list below.

Alternatives

• Protein swap: Use canned salmon (boneless, skinless), sardines in water, or cooked shredded chicken. If using chicken, you may need a bit more liquid to bind.
• Egg-free: Replace the egg with 2 tablespoons unsweetened pumpkin puree or mashed banana.
  

  Add a pinch more oat flour if the dough is wet.

  
  
• Grain-free: Sub equal parts coconut flour and finely ground almond flour, then add liquid slowly. Coconut flour is thirsty—start with 1 tablespoon of water and add as needed.
• Breath boosters: Add 1–2 teaspoons finely chopped parsley stems or a pinch of dried spearmint (dog-safe, not peppermint oil). Avoid essential oils.
• Texture tweaks: For softer treats, bake 14–16 minutes and store in the fridge.
  

  For extra-crunchy biscuits, bake to 22 minutes and leave in the oven (off) to dry.

  
  

FAQ

How many treats can my dog have per day?

As a general rule, treats should make up no more than 10% of your dog’s daily calories. For small dogs, start with one or two small pieces. Medium and large dogs can have a few more.

When in doubt, break treats into smaller bits and use them for training.

Is parsley safe for dogs?

Yes, in small amounts. Curly parsley is commonly used and generally safe for healthy adult dogs. Avoid large quantities and do not use parsley for dogs with kidney issues unless your vet says it’s okay.

Always stick to the amounts in the recipe.

Can I use dried herbs instead of fresh?

Yes. Use 1 tablespoon dried parsley and 1 teaspoon dried mint. Dried herbs are stronger, so don’t overdo it.

Mix well so the flavor distributes evenly.

What if my dog doesn’t like fish?

Try canned chicken, low-sodium turkey, or mashed sardines in water for a different flavor. You can also add a teaspoon of grated Parmesan for aroma, but keep it minimal due to salt.

Will these treats fix bad breath completely?

They can help, but they don’t replace dental care. Persistent bad breath can signal dental disease or gastrointestinal issues.

Brush your dog’s teeth regularly and ask your vet for a dental check if bad breath continues.

Can I make these in a dehydrator?

Yes. Form small, thin pieces and dehydrate at the device’s recommended temp for meat treats until fully dry and crisp. Baking first and then finishing in the dehydrator can speed things up and improve shelf life.

How do I know when they’re done?

The edges should look dry and slightly golden, and the centers should feel firm.

For longer storage, aim for a crisp texture with no noticeable moisture when broken open.

Are these okay for puppies?

For puppies over 12 weeks with no known allergies, small pieces are fine as an occasional treat. Keep portions tiny and check with your vet if your puppy has a sensitive stomach or special diet.

Can I add breath-freshening extras like chlorophyll drops?

It’s better to stick to whole-food ingredients for treats. If you want to use chlorophyll or other supplements, talk to your vet about safe dosages and use them separately from treats.

Final Thoughts

Tuna & Parsley Fresh Breath Dog Treats bring together fresh ingredients and practical benefits in one easy bake.

They’re crunchy, aromatic, and tailored to help with breath while supporting overall wellness. With a few pantry staples and 30 minutes, you’ll have a batch of simple, wholesome snacks your dog will love. Keep them small, keep them crisp, and enjoy a treat that actually earns its place in the jar.