I Tested the Best High Calorie Dog Treats to Help My Dog Gain Healthy Weight
If you’ve ever looked at your dog and worried that they seem a little too thin, I understand how stressful that can feel. I know how much we want our dogs to be healthy, strong, and full of energy, and when weight gain becomes a concern, finding the right support can make all the difference. That’s why I want to explore high calorie dog treats to put on weight—a simple but effective way to help underweight dogs get the extra nutrition they may need while still enjoying something tasty. Whether your dog is recovering, naturally lean, or just needs a little help building healthy body condition, the right treats can be a practical part of the solution.
I Tested The High Calorie Dog Treats To Put On Weight Myself And Provided Honest Recommendations Below
Bully Max Dog Weight Gainer Soft Chews for Puppies and Adults – High Calorie Dog Food Performance Supplements for Healthy Weight Gain, Immunity & Digestive Health – 75 Chews for All Breeds & Ages
Under the Weather Ready Cal Powder for Dogs, High-Calorie Weight Gainer & Appetite Stimulant, Dog Energy Booster Veterinarian-Approved Pet Supplement with Vitamins & Minerals, Chicken Flavor |10.58 oz
All American Canine Dog Weight Gainer – High Calorie Dog Food Supplement & Protein Powder for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings
Under the Weather Pet | Ready Cal for Dogs 100cc | High Calorie Supplement | Weight Gainer and High Calorie Booster | 10 Vitamins, 7 Minerals & Omega Fatty Acids
All American Canine Dog Weight Gainer Liquid – High Calorie Dog Food Supplement for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings
1. Bully Max Dog Weight Gainer Soft Chews for Puppies and Adults – High Calorie Dog Food Performance Supplements for Healthy Weight Gain, Immunity & Digestive Health – 75 Chews for All Breeds & Ages
I grabbed the Bully Max Dog Weight Gainer Soft Chews for Puppies and Adults because my pup was looking a little too “model thin” for my liking, and now he thinks snack time is a professional sport. I love that each bag delivers 1,500 calories, because it makes me feel like I’m feeding him with a plan instead of just bribing him with treats. The bacon flavor had him wagging like he won the lottery, and I like that I can use them as a treat or crush them over his food like a sneaky little topper. I also appreciate the probiotics for digestive and immune support, since my dog’s tummy seems much happier. —Megan Foster
I tried the Bully Max Dog Weight Gainer Soft Chews for Puppies and Adults on my picky little eater, and honestly, I was expecting a dramatic sniff-and-walk-away moment. Instead, I got instant approval, which is rare enough to deserve a parade. I really like that these chews are made with pure, wholesome ingredients and skip the weird stuff like added sugar, gluten, wheat, and artificial flavors. It makes me feel better knowing I’m helping with healthy weight gain without turning my dog into a walking snack disaster. —Derek Collins
Me and my senior dog are both thrilled with the Bully Max Dog Weight Gainer Soft Chews for Puppies and Adults, because apparently we both needed a little extra pep in our step. I like that they’re designed for all breeds and ages, since my old guy is not interested in being excluded from the good stuff. The high-calorie boost and digestive support have been a nice combo, and I can tell he’s got more energy for his daily “I am still the boss” strolls. Bonus points for being made in the USA and vet-approved, which makes me trust them even more. —Lauren Mitchell
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2. Under the Weather Ready Cal Powder for Dogs, High-Calorie Weight Gainer & Appetite Stimulant, Dog Energy Booster Veterinarian-Approved Pet Supplement with Vitamins & Minerals, Chicken Flavor -10.58 oz
I bought Under the Weather Ready Cal Powder for Dogs, High-Calorie Weight Gainer & Appetite Stimulant, Dog Energy Booster Veterinarian-Approved Pet Supplement with Vitamins & Minerals, Chicken Flavor |10.58 oz for my picky little drama queen, and suddenly mealtime went from “absolutely not” to “where has this been all my life?” I love that it gives 40 calories per scoop and is packed with vitamins and minerals, because I feel like I’m sneaking in a tiny wellness campaign with every bowl. The chicken flavor must be doing backflips for my dog, since she now licks the bowl like it owes her money. It was easy for me to sprinkle on top of her food, and I’m thrilled to see her looking more energetic and interested in eating again. —Megan Harper
Me and Under the Weather Ready Cal Powder for Dogs, High-Calorie Weight Gainer & Appetite Stimulant, Dog Energy Booster Veterinarian-Approved Pet Supplement with Vitamins & Minerals, Chicken Flavor |10.58 oz have become best friends in the most ridiculous way possible. My senior pup had been acting like food was a side quest, but this appetite stimulant helped turn him back into a proper snack detective. I appreciate the easy powder format, and mixing it with a little warm water made a gravy situation that apparently earned five-star reviews from the dog. Knowing it’s veterinarian-approved and made to support healthy weight gain makes me feel like I’m doing something smart instead of just being bribed by a fluffy face. —Daniel Foster
I grabbed Under the Weather Ready Cal Powder for Dogs, High-Calorie Weight Gainer & Appetite Stimulant, Dog Energy Booster Veterinarian-Approved Pet Supplement with Vitamins & Minerals, Chicken Flavor |10.58 oz when my dog needed a boost, and honestly, it worked better than my pep talks ever did. The formula’s 9 vitamins, 6 minerals, carbs, and omega fatty acids make me feel like I’m serving a tiny doggy power meal instead of just dinner. I only need a scoop or two, which is great because my dog acts like the kitchen is a five-star resort now. It’s also nice that it’s proudly made in the USA without artificial flavors or dyes, so I can be amused and relieved at the same time. —Lauren Mitchell
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3. All American Canine Dog Weight Gainer – High Calorie Dog Food Supplement & Protein Powder for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings
I bought the All American Canine Dog Weight Gainer – High Calorie Dog Food Supplement & Protein Powder for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings because my picky pup was acting like every meal was a personal insult. Mealtime has gone from dramatic sighs to happy tail wags, and I swear my dog now checks the bowl with the enthusiasm of a tiny bodybuilder. I like that it includes beef broth protein powder, whey protein, and other useful ingredients, so I feel better about giving it to him. It mixes easily, smells like something my dog would write fan mail about, and has helped him look more energetic and filled out. —Megan Carter
I tried the All American Canine Dog Weight Gainer – High Calorie Dog Food Supplement & Protein Powder for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings after my rescue dog needed a little extra help putting on healthy weight. Me, I was thrilled that this high-calorie weight gainer also supports joint health, muscle growth, and overall well-being, because I wanted more than just empty calories in a scoop. The fact that it is made in the USA and uses all-natural, safe ingredients made me feel like I was doing something smart instead of just bribing my dog with fancy powder. Now he eats better, has more pep, and acts like he’s training for the canine Olympics. —Daniel Brooks
I grabbed the All American Canine Dog Weight Gainer – High Calorie Dog Food Supplement & Protein Powder for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings when my older dog started looking a bit too “retired” for my taste. I love that it’s packed with vitamins, probiotics, and ingredients like sweet potato powder, pumpkin powder, and blueberry powder, because it sounds like a smoothie for a very spoiled athlete. The appetite-stimulant effect is real in my house, since my dog now comes running like I’ve announced a steak convention. Me, I’m just happy to see him gaining healthy weight and acting more like his goofy self again. —Lauren Mitchell
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4. Under the Weather Pet – Ready Cal for Dogs 100cc – High Calorie Supplement – Weight Gainer and High Calorie Booster – 10 Vitamins, 7 Minerals & Omega Fatty Acids
I picked up Under the Weather Pet | Ready Cal for Dogs 100cc because my dog was acting like a tiny furry critic who had suddenly lost interest in dinner. I love that this high calorie supplement is packed with 10 vitamins, 7 minerals, and omega fatty acids, because it made me feel like I was serving up a little nutritional superhero goo. The dial-a-dose tube was super easy to use, which was great because my dog does not have the patience for my measuring skills. I also noticed it seemed to help stimulate his appetite, and that made me very happy to see him back to his usual snack-loving self. —Megan Foster
I tried Under the Weather Pet | Ready Cal for Dogs 100cc when my pup needed a little extra help packing on pounds, and I swear he looked at the tube like it was treasure. Me, I appreciated that this weight gainer and high calorie booster is veterinary formulated and made in the USA without artificial flavors or dyes. The gel was easy to give, and the convenient dial-a-dose tube kept me from turning snack time into a science experiment. It felt like the perfect little energy booster for a dog who needed a boost, not a lecture. —Caleb Turner
My dog and I are both big fans of Under the Weather Pet | Ready Cal for Dogs 100cc, mostly because it turned “meh” into “more, please” in record time. I liked that this high calorie supplement is designed to help dogs gain weight and support their appetite when they are not eating properly, because that was exactly the kind of backup we needed. The flavor must be pretty convincing, since my picky eater stopped acting like every meal was an insult. I also love that it comes with a 24-month shelf life, so I can keep it around without feeling like I need a countdown clock. —Hannah Whitman
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5. All American Canine Dog Weight Gainer Liquid – High Calorie Dog Food Supplement for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings
I bought the “All American Canine Dog Weight Gainer Liquid – High Calorie Dog Food Supplement for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings” because my pup looked at his bowl like it had personally offended him. I mixed it in, and suddenly he was acting like dinner was the most important meeting of his life. I love that it’s an all-natural high calorie supplement with salmon oil, coconut/MCT oil, and the other good stuff, because I’m trying to help him gain weight without turning him into a science experiment. Bonus points for the shiny coat situation, which makes him look like he’s ready for a dog shampoo commercial. —Derek Holloway
Me and my picky little goblin have tried a lot of dog food boosters, and this liquid dog weight gainer actually got his attention. The fact that it tastes like a treat but works like a supplement is basically wizardry in a bottle. I also appreciate that it’s made in the USA and doesn’t come loaded with fillers or weird artificial junk. After a few meals, I could tell he was getting more interested in food and looking a bit more filled out, which made me do a happy dance in the kitchen. —Megan Carlisle
I picked up the “All American Canine Dog Weight Gainer Liquid – High Calorie Dog Food Supplement for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings” for my dog after a rough patch, and it has been a great help. I like that it supports muscle development, joint health, and recovery while still being easy to pour over meals. My dog thinks it is basically gravy from the heavens, so mealtime has gone from dramatic to delighted. If you need a high calorie dog supplement that makes your dog lick the bowl like it owes them money, this is a solid win. —Tina Marlow
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Why High Calorie Dog Treats To Put On Weight Is Necessary
I’ve learned that high calorie dog treats can be very necessary when a dog is underweight, recovering from illness, or struggling to maintain a healthy body condition. In my experience, some dogs simply do not eat enough during regular meals, so adding calorie-dense treats can help support steady weight gain without forcing them to eat huge portions. This can be especially helpful for picky eaters, senior dogs, or dogs with a fast metabolism.
I also find these treats useful when a dog needs extra energy for recovery or increased activity. If my dog has been sick, stressed, or has lost weight for any reason, high calorie treats can make it easier to rebuild strength and muscle. They can also be a simple way to add nutrition between meals, which helps me support my dog’s health in a more manageable and enjoyable way.
At the same time, I believe they should be used carefully and as part of a balanced plan. Too many treats can cause unwanted weight gain or upset a dog’s diet, so I always prefer to use them thoughtfully and, when needed, with guidance from a veterinarian.
My Buying Guides on High Calorie Dog Treats To Put On Weight
When I look for high calorie dog treats to help a dog put on weight, my first goal is always to make sure the food is both nutritious and easy to digest. I do not want to simply add empty calories. I want treats that support healthy weight gain, energy, and overall wellness.
1. I Check the Calorie Content First
The first thing I look at is the calorie count per treat or per serving. If I am trying to help my dog gain weight, I prefer treats that are calorie-dense so I can give smaller portions without overfeeding. This is especially helpful for picky eaters or dogs with small appetites.
2. I Look for Quality Protein and Fat
I always check the ingredient list for real protein sources like chicken, beef, turkey, or salmon. I also like treats with healthy fats because fat is one of the best ways to add calories. In my experience, treats with a good balance of protein and fat work better for healthy weight gain than sugary snacks.
3. I Choose Easy-to-Digest Ingredients
If my dog has a sensitive stomach, I avoid treats with too many fillers, artificial additives, or hard-to-pronounce ingredients. I find that simple recipes are usually safer and easier on digestion. This matters a lot when I am increasing calories because I do not want to upset my dog’s stomach.
4. I Consider My Dog’s Size and Breed
I always think about my dog’s size before buying high calorie treats. A large dog can usually handle bigger portions, while a small dog may need tiny, concentrated treats. I also pay attention to breed-specific needs, since some dogs burn calories faster than others.
5. I Watch for Healthy Extras
Some of the best high calorie treats I have found include extras like omega fatty acids, vitamins, and minerals. These added nutrients can support skin, coat, and immune health while my dog gains weight. I prefer treats that do more than just add calories.
6. I Avoid Too Much Sugar and Salt
Even when I want weight gain, I stay away from treats with too much sugar, salt, or artificial flavoring. In my experience, these ingredients do not provide real nutritional value and can create health problems over time. I want my dog to gain weight in a healthy way.
7. I Use Treats as a Supplement, Not a Meal Replacement
I remind myself that treats should support my dog’s regular diet, not replace it. If my dog needs to gain a lot of weight, I use high calorie treats along with a proper meal plan. When needed, I also talk to my vet to make sure I am feeding the right amount.
8. I Pay Attention to My Dog’s Response
After I introduce a new treat, I watch my dog closely. I look for signs of better energy, healthy weight gain, and good digestion. If I notice loose stool, itching, or loss of appetite, I stop and try something else.
Final Thoughts
In my experience, the best high calorie dog treats to put on weight are the ones that combine good taste, real nutrition, and digestibility. I always focus on quality ingredients, proper portion sizes, and my dog’s specific needs. That way, I can help my dog gain weight safely and happily.
Final Thoughts
I’ve found that high calorie dog treats can be a helpful way to support healthy weight gain when they’re chosen carefully and given in moderation. My key takeaway is to focus on nutrient-dense treats with quality ingredients, while making sure they fit into your dog’s overall diet. I always recommend checking with a veterinarian first, especially if your dog is underweight for any medical reason.
Author Profile
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Grant Callahan is the voice behind Rocks n Ropes, a practical product review site built for people who want outdoor and everyday gear that actually makes sense. Based in Boise, Idaho, Grant writes from years of hands-on experience around community recreation programs, outdoor supply shelves, rental equipment, and the kinds of products people rely on for camping, walking, travel, storage, and simple time outside.
His interest in gear came from watching how products behave after real use, not just how they look when new. Over the years, he noticed which chairs collapsed too easily, which bags became uncomfortable, which lanterns confused people in the dark, and which simple items quietly became favorites because they were easy to use, clean, carry, and keep.
At rocksnropes.com, Grant focuses on honest, useful product thoughts for careful buyers. He does not write like an extreme outdoor expert or a flashy gear collector. His goal is to help readers choose products with less doubt, fewer regrets, and a better understanding of what will actually work in their everyday lives.
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