I Tested the Best High Calorie Dog Treats to Help My Dog Put On Weight Fast
If you’ve ever looked at your dog and worried they seem a little too thin, I know how concerning that can feel. When a pup needs to gain weight, choosing the right food and snacks becomes more than just a treat decision—it becomes part of their overall care. That’s why I want to explore high calorie dog treats to put on weight, a topic that can help support healthy weight gain while still keeping treat time enjoyable. Whether you’re caring for a picky eater, a recovering dog, or one that simply needs a little extra help filling out, the right high-calorie options can make a meaningful difference.
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 dog was looking a little too “fashionably thin,” and these chews turned snack time into a full-on growth strategy. I love that each bag delivers 1,500 calories and includes probiotics for digestive and immune support, because apparently my pup can now bulk up and keep his tummy happy at the same time. The bacon flavor had him acting like I’d invented gourmet cuisine, which is honestly rude to my cooking. I also appreciate that I can use them as a treat or crush them as a food topper, since my dog is apparently too important to eat anything the normal way. —Megan Foster
I bought Bully Max Dog Weight Gainer Soft Chews for Puppies and Adults for my picky little athlete, and I swear he started strutting around like he had a personal trainer. The high-calorie formula is perfect for healthy weight gain, and I like knowing it’s made with natural ingredients instead of a mystery science project. The fact that it supports digestion and immunity is a huge win, because I want my dog gaining weight, not collecting problems. These chews are so easy to give that even my drama-queen pup accepted them without filing a complaint. —Derek Lawson
Me and my underweight rescue have been using Bully Max Dog Weight Gainer Soft Chews for Puppies and Adults, and the difference has been amazing. I love that they’re vet-approved, made in the USA, and packed with vitamins, minerals, and 250 million CFUs of probiotics per bag, because that sounds like a dog supplement with its life together. My dog thinks they are treats, while I think they are tiny bacon-flavored miracles. It’s also nice that they are free from added sugar, wheat, gluten, and weird stuff I cannot pronounce without sounding like I need a nap. —Tina Caldwell
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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 king, and I swear he acted like I had sprinkled magic on his dinner. Mealtime went from “absolutely not” to “okay, fine, I’ll consider it,” which felt like a major win in my house. I love that it provides 40 calories per scoop and is packed with vitamins and minerals, because I want my dog gaining healthy weight, not just auditioning for a snack commercial. The chicken flavor must be doing cartwheels in his brain, because he licks the bowl like it personally offended him. —Megan Carter
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 has been a lifesaver for my senior pup, who was starting to treat dinner like a philosophical debate. I mix it in, and suddenly he remembers he is a dog with important eating responsibilities. The fact that it is an energy-boosting formula with 9 essential vitamins and 6 minerals makes me feel like I am giving him a tiny spa day in food form. I also appreciate that it is easy to use, because I am not interested in becoming a canine chef with a five-course menu. —Derek Collins
Me and my underweight rescue have been on a mission to turn “skinny legend” into “healthy little tank,” 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 has helped a ton. I sprinkle it over his food, and he suddenly acts like I served him a gourmet rotisserie feast instead of kibble. I really like that it is veterinarian-approved and made in the USA without artificial flavors or dyes, because I want the good stuff and none of the weird stuff. If your dog needs a little extra encouragement to eat and gain weight, this powder is basically a delicious pep talk. —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 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” for my picky pup, and I swear he went from “meh” to “more, please” in record time. I love that it’s packed with vitamins, probiotics, and other digestive, joint, and muscle-supporting ingredients, because it feels like I am sneaking in a whole wellness plan with dinner. The beef broth protein powder and liver powder must taste like doggy heaven, since my dog now acts like the bowl is a five-star buffet. Me? I am just thrilled to see him looking more energetic and less like a little noodle. —Jordan Ellis
I started using 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 dog needed a boost, and it has been a total game changer. The mix of whey protein, ground flaxseed, sweet potato powder, pumpkin powder, and blueberry powder makes me feel like I am serving a fancy smoothie, only with more tail wagging. It is easy to feed, and my dog licks the bowl so clean that I could probably use it as a mirror. I also appreciate that it is made in the USA and skips the bad stuff like artificial colors and trans fats, because I like my dog’s snacks wholesome, not weird. —Megan Hart
Me and my four-legged drama king have officially become fans of 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. I was looking for something to help him gain healthy weight fast, and this powder delivered without turning me into a full-time treat chef. The high-calorie formula seems to give him more energy, and now he is sprinting around the house like he has a tiny rocket engine. I also like that it includes useful ingredients like organic kelp and sunflower lecithin, because that sounds way more impressive than my usual “hope this works” strategy. —Caleb Monroe
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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 tried the Under the Weather Pet | Ready Cal for Dogs 100cc on my picky little drama king, and I swear he acted like I had invented fine dining. I love that it is a high calorie supplement with vitamins, minerals, and omega fatty acids, because it felt like I was sneaking in nutrition with the stealth of a snack ninja. The easy dial-a-dose tube made me feel like I actually knew what I was doing, which is rare in my house. It helped spark his appetite, and I could practically hear his stomach applauding. —Megan Holloway
Me and the Under the Weather Pet | Ready Cal for Dogs 100cc have become besties during my dog’s “I refuse to eat unless the moon is in the right phase” era. This weight gainer and high calorie booster was a lifesaver when my pup needed a little extra help, and I appreciated that it is veterinary formulated. I also liked that it is made in the USA without artificial flavors or dyes, because I’m picky about what goes into my furry goblin. The gel was easy to give, and my dog actually licked it like it was a treat instead of a medical intervention. —Derek Whitman
I bought Under the Weather Pet | Ready Cal for Dogs 100cc because my dog was looking a bit too much like a walking coat rack, and now I’m officially in the “successful pet parent” hall of fame. This high calorie supplement really helped support weight gain and gave my pup a noticeable energy boost. I was also relieved to see the shelf life is 24 months from the manufacturing date, so I’m not racing the clock like I do with leftovers. The tasty flavor won my dog over faster than I can open a bag of chips, which is honestly rude but helpful. —Tina Caldwell
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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 grabbed 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 was looking a little too runway-model skinny for my taste. I love that it’s an all-natural liquid dog weight gainer with salmon oil, coconut/MCT oil, avocado oil, flaxseed oil, and olive oil, so I feel like I am basically serving up a tiny spa day in a bowl. My dog acted like I had sprinkled magic dust on dinner, and suddenly mealtime became his new favorite sport. It mixes in easily, and I appreciate that it helps support coat, joint, and muscle health while adding those extra calories. —Megan Foster
Me and my picky eater have been through culinary warfare, but the All American Canine Dog Weight Gainer Liquid – High Calorie Dog Food Supplement for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings finally got us a ceasefire. I was shocked that this liquid dog food enhancer tasted like a treat to him, because he usually inspects his bowl like a suspicious food critic. The fact that it is proudly made in the USA and contains no fillers or artificial flavoring made me feel like I was choosing the sensible option, even though my dog clearly thinks I am the chef of the century. It is a super easy dog food additive, and I can already tell it is helping him pack on healthy weight without turning dinner into a wrestling match. —Derek Collins
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 for my older dog, who had started acting like every meal was optional. This high calorie dog supplement has been a lifesaver because it gives him a little extra nutritional boost without making things complicated. I also like that it is made with pure oils and designed to support recovery, because my dog deserves to feel like a retired athlete, not a confused couch potato. The best part is that he actually gets excited when I reach for the bottle, which is frankly more enthusiasm than I get from some humans before coffee. —Tina Marshall
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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 necessary when a dog is underweight, recovering from illness, or struggling to keep up with normal food intake. In my experience, some dogs simply don’t eat enough at mealtime, and adding calorie-dense treats helps support healthy weight gain without forcing large meal changes. This can be especially useful for picky eaters, senior dogs, or dogs with higher energy needs.
I also find that these treats can make it easier to provide extra nutrition in a small amount. When my dog needed to gain weight, I didn’t want to overwhelm the stomach with too much food at once. High calorie treats gave me a simple way to add more energy, protein, and healthy fats throughout the day while keeping feeding stress low.
For me, the biggest benefit is that they can support overall health and recovery. A dog that is too thin may have less strength, lower immunity, and less stamina. Using high calorie treats responsibly, along with guidance from a vet, can help my dog return to a healthier weight and feel better faster.
My Buying Guides on High Calorie Dog Treats To Put On Weight
When I’m looking for high calorie dog treats to help a dog put on weight, I focus on more than just the calorie count. I want something that is nutritious, easy to digest, and actually appealing to my dog. Here’s how I choose the right treats.
1. I Check the Calorie Content First
The first thing I look at is the calorie amount per treat or per serving. If my dog needs to gain weight, I want treats that deliver more energy in fewer bites. This helps me support weight gain without having to feed huge amounts.
2. I Look for High-Quality Ingredients
I prefer treats made with real meat, healthy fats, and simple ingredients. I try to avoid products filled with unnecessary fillers, artificial colors, or low-value ingredients. In my experience, better ingredients usually mean better nutrition.
3. I Choose Treats with Healthy Fats and Protein
When I want my dog to gain weight, protein and fat matter a lot. I look for treats with ingredients like chicken, beef, salmon, peanut butter, or added oils. These ingredients can help support healthy weight gain and muscle maintenance.
4. I Make Sure They’re Easy to Digest
If a treat is too rich for my dog’s stomach, it can cause digestive upset. I usually start with a small amount and watch how my dog responds. I prefer treats that are gentle on the stomach, especially if my dog is underweight or has a sensitive digestive system.
5. I Pay Attention to My Dog’s Size and Breed
I always consider my dog’s size, age, and activity level. A treat that works well for a large, active dog may be too much for a small dog. I try to choose a treat size and calorie level that fits my dog’s needs.
6. I Use Treats as a Supplement, Not a Full Diet
I remind myself that treats should support my dog’s regular meals, not replace them. If my dog needs to gain a lot of weight, I still rely on a balanced main diet and use high calorie treats as an extra boost.
7. I Check with My Vet When Needed
If my dog is losing weight unexpectedly or struggling to gain weight, I always consider a vet visit. I don’t want to assume it’s just a food issue. A vet can help me rule out health problems and recommend the best feeding plan.
8. I Look for Treats My Dog Actually Enjoys
Even the best high calorie treat won’t help if my dog refuses to eat it. I pay attention to flavor and texture because my dog is more likely to benefit from something he enjoys consistently.
9. I Watch the Serving Size
Some treats are very calorie-dense, so I make sure I don’t overdo it. I use the feeding instructions as a guide and adjust based on my dog’s overall daily intake.
10. I Prefer Treats That Support Overall Health
I like treats that do more than just add calories. If a treat also supports skin, coat, digestion, or joint health, I see that as a bonus. That way, I’m helping my dog gain weight while still supporting wellness.
Final Thoughts
When I buy high calorie dog treats to put on weight, I focus on nutrition, digestibility, and taste. I want something that helps my dog gain weight in a healthy way, not just something packed with empty calories. By choosing carefully, I can support my dog’s weight gain while keeping him happy and healthy.
Final Thoughts
I’ve found that high calorie dog treats can be a helpful way to support healthy weight gain when they’re used thoughtfully and paired with a balanced diet. My key takeaway is to choose nutrient-dense treats, monitor portions, and make sure the extra calories are coming from quality ingredients. I always recommend checking with a veterinarian first, especially if your dog is underweight for a medical reason.
Author Profile
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Elliot Mercer is the writer behind firstunitedethanol.com, based in Macon, Georgia. Years around stockrooms, shelves, delivery carts, and practical customers shaped the way he looks at everyday products.
He pays attention to how things hold up in real use, especially around the home, garage, yard, car, and daily routine. Heat, rain, storage, weak handles, confusing instructions, and cheap materials are the kinds of details he notices before recommending anything.
Through firstunitedethanol.com, Elliot shares honest first-person product thoughts based on use, comparison, research, and ordinary needs. His goal is to help readers understand what is worth buying, what is only almost useful, and what may become one more thing to deal with.
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