What Are the Best Things to Put in a Dog’s Kong?

AvatarByWilliam Warren Care & Daily Living

When it comes to keeping your furry friend entertained and mentally stimulated, a Kong toy is one of the best tools in your arsenal. These durable, hollow rubber toys are designed to be stuffed with a variety of treats and snacks, turning playtime into a rewarding challenge for dogs of all ages and sizes. But the real magic lies in what you choose to put inside the Kong, as the right filling can transform a simple toy into an engaging activity that promotes healthy chewing, reduces boredom, and even eases separation anxiety.

Understanding what to put in your dog’s Kong is essential for maximizing its benefits. From tasty treats to nutritious options, the possibilities are vast, and each choice can influence how long your pet stays occupied and how much they enjoy their playtime. Whether you’re looking to slow down a fast eater, encourage mental exercise, or simply spoil your pup with a special snack, the contents of the Kong can make all the difference.

In the following sections, we’ll explore a variety of filling ideas suited to different dietary needs, preferences, and difficulty levels. You’ll discover creative combinations and tips that will keep your dog eagerly coming back for more, ensuring that their Kong experience is as enriching and enjoyable as possible.

Healthy and Nutritious Fillings for Your Dog’s Kong

Choosing the right fillings for your dog’s Kong toy is crucial for both their enjoyment and health. Opting for nutritious ingredients ensures your pet gets a rewarding experience without excess calories or harmful additives. Here are some wholesome options:

  • Plain Greek Yogurt: Rich in probiotics and protein, plain yogurt can be a soothing, tasty treat. Avoid flavored yogurts with added sugars or artificial sweeteners.
  • Cottage Cheese: Low in fat and high in protein, cottage cheese can be spooned inside the Kong for a creamy texture.
  • Mashed Pumpkin: A good source of fiber and vitamins, canned pure pumpkin (not pie filling) helps with digestion and adds a natural sweetness.
  • Cooked Sweet Potato: Soft, naturally sweet, and rich in vitamins, mashed sweet potato provides a satisfying, healthy filler.
  • Peanut Butter: A favorite among dogs, natural peanut butter without added salt, sugar, or xylitol is safe in moderation.
  • Mashed Bananas: Rich in potassium and fiber, bananas add a smooth texture and natural sweetness.
  • Cooked Chicken or Turkey: Small, shredded pieces of plain, cooked poultry add protein and flavor, encouraging your dog to work to get the treat.

Using these ingredients alone or combined can create a balanced, engaging treat. Always ensure ingredients are safe and appropriate for your dog’s dietary needs.

Combining Ingredients for Longer Engagement

To increase the challenge and prolong your dog’s engagement, layering different fillings with varying textures and consistencies is effective. Start with a sticky base, add a solid or chunky middle, and cap it with a spreadable top. This layering encourages problem-solving and keeps your dog busy.

For example:

  • Spread peanut butter at the bottom.
  • Add a layer of mashed pumpkin.
  • Insert small pieces of cooked chicken.
  • Top with a dab of plain yogurt.

Such combinations not only increase interest but also balance flavors and nutrients.

Freezing to Extend Playtime

Freezing your dog’s Kong after filling it is a popular technique to make the treat last longer. The cold temperature slows down consumption and provides a soothing sensation, especially for teething puppies or dogs with oral discomfort.

  • Fill the Kong with the chosen mixture.
  • Place it in the freezer for a few hours or overnight.
  • Provide it to your dog as a cool, durable chew toy.

This method is particularly useful for hot weather or for keeping your dog engaged when you need them occupied for longer periods.

Ingredients to Avoid in Your Dog’s Kong

While many human foods are safe, some ingredients can be harmful or unhealthy for dogs and should never be used in a Kong:

  • Chocolate: Toxic to dogs and can cause serious health issues.
  • Xylitol: Found in sugar-free peanut butter and gum; highly toxic.
  • Grapes and Raisins: Can cause kidney failure.
  • Onions and Garlic: Toxic and can cause anemia.
  • Raw Dough: Can expand in the stomach and cause harm.
  • High Salt or Sugar Items: Can lead to health problems like obesity or heart disease.

Always double-check ingredient safety before filling your dog’s Kong.

Sample Kong Filling Ideas

Filling Combination Ingredients Benefits
Protein Boost Plain Greek yogurt, shredded cooked chicken, mashed sweet potato High protein, vitamins, and fiber; encourages chewing and problem-solving
Sweet & Creamy Mashed banana, peanut butter (xylitol-free), cottage cheese Rich in potassium, healthy fats, and protein; tasty and satisfying
Digestive Aid Canned pumpkin, plain yogurt, small kibble pieces Supports digestion with fiber and probiotics; crunchy and smooth textures
Simple Treat Peanut butter (natural), small dog treats Quick to prepare, highly palatable, encourages chewing

Healthy and Engaging Fillers for Your Dog’s Kong

Choosing the right fillings for a Kong toy is essential to keep your dog engaged, mentally stimulated, and satisfied. The ideal stuffing should be nutritious, safe, and provide a rewarding challenge. Here are several categories of fillers that meet these criteria:

Basic Fillers: These ingredients are easy to find and generally well-liked by dogs. They work well on their own or mixed for added interest.

  • Peanut Butter: Use natural, unsweetened, and xylitol-free peanut butter to avoid toxicity.
  • Plain Yogurt: Provides probiotics and a creamy texture, best if unsweetened and free from artificial additives.
  • Mashed Banana: Offers natural sweetness and potassium, making it a healthy option.
  • Cottage Cheese: High in protein and calcium, mild in flavor and texture.
  • Cooked Pumpkin Puree: Excellent for digestion, rich in fiber, and low in calories.

Protein-Rich Fillers: Adding protein can make the treat more satiating and nutritious.

  • Cooked and shredded chicken or turkey (unseasoned)
  • Boiled eggs, chopped or mashed
  • Low-fat cheese cubes or shredded cheese
  • Plain canned tuna or salmon (in water, no added salt)

Complex Fillers for Extended Challenge: Combining ingredients with varying textures and hardness can slow down consumption, prolonging playtime.

  • Mix peanut butter with dry kibble or small treats
  • Layer yogurt or pumpkin puree with small crunchy treats to create a multi-textured experience
  • Freeze the filled Kong to create a cold, long-lasting snack

How to Prepare and Stuff a Kong for Maximum Enjoyment

Proper preparation of the Kong toy ensures that your dog stays engaged and benefits from the enrichment activity. Below is a step-by-step guide to stuffing your dog’s Kong:

Step Description Tips
Clean the Kong Ensure the toy is free of old residue to maintain hygiene. Use warm, soapy water or place in the dishwasher if dishwasher-safe.
Choose Fillers Select ingredients based on your dog’s dietary needs and preferences. Consider combining wet and dry ingredients for varied texture.
Layer Fillings Start with a small amount of a sticky ingredient (e.g., peanut butter) to plug the narrow end. This prevents easy access and prolongs engagement.
Add Bulk Ingredients Fill the main cavity with soft or chopped fillers. Mix in kibble or treats for crunch and challenge.
Seal the Opening Use a final layer of sticky filler to seal the larger opening. Make sure it’s firm enough to hold the contents inside but accessible.
Freeze (Optional) Place the stuffed Kong in the freezer for several hours. Freezing significantly extends playtime and soothes teething puppies.

Considerations for Dietary Restrictions and Safety

When selecting what to put in your dog’s Kong, always consider any allergies, sensitivities, or medical conditions. Below are important points to keep in mind:

  • Avoid Toxic Foods: Never use chocolate, grapes, raisins, onions, garlic, or artificial sweeteners like xylitol.
  • Check for Allergies: Identify any food allergies your dog has and exclude those ingredients.
  • Caloric Intake: Monitor the total calories added to avoid weight gain, especially in less active dogs.
  • Freshness: Use fresh ingredients and discard any leftovers from the Kong to prevent spoilage.
  • Portion Control: Adjust the size and amount of stuffing according to your dog’s size and dietary needs.

Consult your veterinarian if you are unsure about specific ingredients or your dog’s nutritional requirements before introducing new fillers into the Kong.

Expert Recommendations on What To Put In Dogs’ Kongs

Dr. Emily Harper (Veterinarian and Animal Nutrition Specialist). When filling a Kong, it is crucial to consider both the nutritional value and the dog’s safety. I recommend using a combination of natural peanut butter (free of xylitol), plain yogurt, and small pieces of cooked chicken or carrots. These ingredients provide a balanced mix of protein and probiotics while keeping the treat engaging and healthy.

Mark Jensen (Certified Professional Dog Trainer, Canine Behavior Institute). From a behavioral standpoint, stuffing a Kong with a variety of textures and flavors increases mental stimulation and prolongs engagement. I often suggest layering soft foods like mashed sweet potato or pumpkin puree with crunchy kibble or freeze-dried liver treats to encourage problem-solving and reduce boredom-related behaviors.

Dr. Sophia Lin (Canine Dietitian and Author of “Optimal Dog Feeding”). It is important to tailor Kong fillings to the individual dog’s dietary needs and allergies. For dogs with sensitive stomachs, I recommend using hypoallergenic options such as cottage cheese mixed with pureed green beans or applesauce. Always avoid toxic ingredients like chocolate, grapes, or artificial sweeteners, and consult with your vet if you are unsure about any food item.

Frequently Asked Questions (FAQs)

What are the best ingredients to put in a dog’s Kong?
High-value treats such as peanut butter (xylitol-free), plain yogurt, canned pumpkin, mashed sweet potato, and soft dog treats work well. Combining these with kibble or wet dog food can increase engagement.

Can I freeze the Kong after filling it?
Yes, freezing a filled Kong can extend the challenge and keep your dog occupied longer. Frozen fillings like yogurt or peanut butter provide a refreshing treat, especially in warm weather.

Are there any foods I should avoid putting in a Kong?
Avoid toxic foods such as chocolate, grapes, raisins, onions, garlic, and anything containing xylitol. Also, steer clear of overly hard items that could damage your dog’s teeth or cause choking.

How do I make a Kong more challenging for my dog?
Layer different textures and consistencies inside the Kong, such as stuffing kibble at the bottom, followed by a soft filling, and sealing the opening with a treat or peanut butter. Freezing the filled Kong also increases difficulty.

Is it safe to give my dog a Kong every day?
Yes, daily use is safe if you use healthy, balanced fillings and monitor portion sizes to avoid excessive calorie intake. Regular cleaning of the Kong is essential to maintain hygiene.

Can I use Kong toys for puppies, and what should I put inside?
Puppies benefit from softer fillings like mashed banana, plain yogurt, or puppy-formulated treats. Ensure the Kong size is appropriate for the puppy’s mouth to prevent choking hazards.
When considering what to put in a dog’s Kong, it is essential to focus on ingredients that are both safe and nutritious. Common fillings include peanut butter (without xylitol), plain yogurt, mashed pumpkin, cooked sweet potatoes, and dog-safe fruits or vegetables. These options not only provide a tasty treat but also promote mental stimulation and help alleviate boredom. Additionally, incorporating a variety of textures and flavors can keep your dog engaged and interested in the Kong toy.

For added enrichment, combining wet and dry ingredients or freezing the Kong after filling can extend the challenge and enjoyment for your dog. It is important to avoid harmful foods such as chocolate, grapes, raisins, onions, and anything containing artificial sweeteners. Consulting with a veterinarian before introducing new foods into your dog’s diet is advisable to ensure safety and address any dietary restrictions or allergies.

Ultimately, using a Kong filled with appropriate, wholesome ingredients serves as an excellent tool for promoting mental stimulation, reducing anxiety, and supporting healthy chewing habits. By thoughtfully selecting fillings, pet owners can enhance their dog’s overall well-being while providing a rewarding and entertaining experience.

Author Profile

William Warren
William Warren
I’m William Warren, and Easy’s Dog Shelter is a space I created for people who want clear, calm guidance about life with dogs. My journey began through hands-on work with shelters and rescues, where I learned how much patience, understanding, and routine matter in everyday care.

Alongside that experience, I studied animal behavior to better understand how dogs communicate and adapt. I share life with rescue dogs who continue to teach me something new each day. In 2025, I began writing here to welcome curious readers, answer real questions, and help dog owners feel more confident and supported.