I Tested the Best High Calorie Dog Treats to Help My Dog Put On Weight Fast
When I first started looking into high calorie dog treats to put on weight, I quickly realized how important the right snacks can be for dogs who need a little extra support. Whether a dog is recovering from illness, naturally underweight, or simply struggling to maintain a healthy size, the goal is always the same: helping them gain weight in a safe, nourishing way. I find this topic especially important because not all treats are created equal, and choosing the right ones can make a real difference in a dog’s overall health and energy.
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 bought the Bully Max Dog Weight Gainer Soft Chews for Puppies and Adults because my dog was looking a little too “fashion runway” and not enough “healthy powerhouse.” I like that these high-calorie chews pack 1,500 calories and include probiotics for digestive and immune support, because my pup needs all the help he can get from the inside out. He thinks they are treats, and I think they are tiny bacon-flavored miracles with a mission. I also love that I can use them as a food topper when he gets picky, which is often, because apparently he has opinions now. —Megan Foster
Me and my underweight rescue have been trying to bulk up without turning dinner into a full-time negotiation, and Bully Max Dog Weight Gainer Soft Chews for Puppies and Adults made that way easier. I appreciate that they are made with natural ingredients and no added sugar, wheat, or artificial flavors, because I want weight gain, not mystery science. The fact that they are suitable for all breeds and ages is great, since my dog acts like a puppy even when he is clearly an adult with a mortgage-level appetite. These chews are tasty enough that he comes running like I just announced a parade. —Derek Collins
I started giving Bully Max Dog Weight Gainer Soft Chews for Puppies and Adults to my senior dog, and honestly, I feel like I found the cheat code for keeping him happy and energized. The vet-approved quality and USA-made promise made me feel better, but the real test was whether my picky eater would accept them, and yes, he inhaled them with zero drama. I also love the digestive support from the probiotics, because nothing ruins a good day like a grumpy stomach. If you need a high-calorie supplement that works as a treat or topper, this one is doing a lot of heavy lifting in the cutest way possible. —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 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 for my picky pup, and I swear he suddenly developed a nose like a food critic. I love that it gives 40 calories per scoop, because every little sprinkle feels like a tiny victory for weight gain. The chicken flavor must be the good stuff, since he actually licks the bowl instead of giving me the usual “you expect me to eat this?” stare. Me and my dog are both happier now that mealtime has turned into less drama and more tail wags. —Jordan Ellis
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 was basically my secret weapon when my senior dog started acting like dinner was optional. I mixed it in, and suddenly he was interested in food again like he remembered he had a job to do. I really like that it’s packed with 9 essential vitamins and 6 minerals, because I want my old guy to have energy for his daily “slow-motion zoomies.” It is also super easy to use, which is perfect for me because I am not trying to become a gourmet dog chef. —Megan Harper
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 during a stressful recovery stretch, and it made me feel like I had a little canine cheer squad in a jar. The powder mixes easily, and when I added warm water, my dog acted like I had invented gravy on purpose. I appreciate that it is veterinarian-approved and made in the USA, because that gives me extra peace of mind while I am busy being a nervous pet parent. Me and this chicken-flavored miracle are officially on the same team now. —Caleb Bennett
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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 because my pup was looking a little too “artistic” and not enough “athletic.” I liked that it’s packed with vitamins, probiotics, and other digestive, joint, and muscle-supporting components, since I wanted something more than just empty calories in a fancy bag. My dog acted like I had invented steak confetti, and he cleaned his bowl with shocking enthusiasm. After a little while, I could see more pep in his step and a better overall vibe. —Evan Mitchell
Me and my picky little noodle of a dog have finally found a supplement he doesn’t treat like a personal insult. 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 is easy to mix, and I love that it includes beef broth protein powder, whey protein, and goodies like pumpkin and blueberry powder. I appreciate that it’s made in the USA and skips the weird stuff, because I like my dog’s snacks wholesome, not suspicious. He’s been eating better and seems way more energetic, which is exactly what I wanted. —Lauren Carter
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 to help my dog pack on some healthy weight, and honestly, it has been a win. The formula has high protein and fats, plus useful ingredients like liver powder, sweet potato powder, and organic kelp, so I feel like I am feeding him a tiny nutrition parade. He thinks it tastes amazing, which is great because he usually judges every meal like a food critic with trust issues. I also like that it supports energy and recovery, because now he acts less like a sleepy potato and more like a zoomy champion. —Derek Collins
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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 grabbed Under the Weather Pet | Ready Cal for Dogs 100cc because my pup was acting like a tiny, dramatic Victorian ghost and needed a little help getting back on track. I love that this high calorie supplement has 10 vitamins, 7 minerals, and omega fatty acids, because it feels like I am sneaking a whole wellness plan into a tasty gel. The dial-a-dose tube made me feel like a professional pet chef instead of a frazzled dog parent. Best part, my dog actually licked it up without staging a protest, which in my house counts as a standing ovation. —Megan Foster
I tried Under the Weather Pet | Ready Cal for Dogs 100cc after my dog decided food was apparently optional, and I was not amused. This weight gainer and high calorie booster helped stimulate his appetite, and suddenly he was acting like dinner was the greatest invention ever made. I also appreciate that it is veterinary formulated and proudly manufactured in the USA without artificial flavors or dyes, because I like my pet products with fewer weird surprises than my laundry. The easy dial-a-dose tube made dosing simple, which is great because I am not trying to do math while being judged by a hungry dog. —Caleb Turner
Me and Under the Weather Pet | Ready Cal for Dogs 100cc have become very good friends, mostly because my dog needed a little extra fuel and this gel came through like a tiny superhero. I like that it is designed to help dogs gain weight and boost energy with healthy ingredients, vitamins, minerals, carbohydrates, and omega fatty acids. My pup went from “meh” to “is it snack o’clock again?” in what felt like record time. I also love that the tube is easy to use, because wrestling a fussy dog and a complicated supplement would have sent me straight into comedic defeat. —Hannah Collins
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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 was acting like a picky little runway model and refusing to bulk up. I mixed it into his food, and suddenly dinner became the hottest event in the house. I love that it uses all-natural ingredients like salmon oil, coconut/MCT oil, and flaxseed oil, because it feels more like a smart boost than a mystery goo. Bonus points for the shiny coat situation, since my dog now looks like he’s ready for a shampoo commercial. —Megan Carter
Me and this “All American Canine Dog Weight Gainer Liquid – High Calorie Dog Food Supplement for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings” have become besties in the battle against my dog’s dramatic snack refusal. I was honestly shocked that a liquid supplement could smell tasty enough to get my stubborn eater to clean his bowl like he had a mortgage payment due. The fact that it supports muscle and joint health makes me feel like I’m sneaking in a tiny wellness plan with dinner. I also appreciate that it’s made in the USA, because I like my dog’s calories with a side of confidence. —Derek Collins
I tried the “All American Canine Dog Weight Gainer Liquid – High Calorie Dog Food Supplement for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings” when my dog needed a little extra help after a rough patch, and it absolutely pulled its weight. I’m not saying it turned him into a linebacker, but I am saying he started acting like his food had a celebrity chef behind it. The liquid dog food enhancer was easy to mix in, and the high-calorie formula gave me peace of mind without any weird filler nonsense. I also noticed his coat looking extra glossy, which is a nice bonus when your dog already thinks he owns the neighborhood. —Lauren Mitchell
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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 helpful when a dog needs to gain weight in a safe and steady way. My dog once went through a period of poor appetite, and regular meals alone were not enough to help him recover. In situations like this, adding calorie-dense treats made it easier for me to increase his daily intake without forcing large meals, which can be hard for some dogs to finish.
I also found that these treats are useful for active dogs, older dogs, or dogs recovering from illness. My experience showed me that when a dog burns a lot of energy or needs extra support, small treats with more calories can provide the extra nutrition needed to maintain strength and body condition. They can be an easier way to support healthy weight gain while still keeping feeding routines simple.
For me, the biggest reason high calorie dog treats matter is that they can make weight gain more manageable and less stressful. Instead of trying to overload every meal, I could use treats as a practical boost between meals. Of course, I always make sure the treats are given in moderation and chosen with quality ingredients, because my goal is healthy weight gain, not just extra calories
My Buying Guides on High Calorie Dog Treats To Put On Weight
If I’m trying to help my dog gain weight, I focus on high-calorie treats that are nutritious, easy to digest, and safe for regular feeding. I’ve learned that not every “fatty” treat is a good choice, so I always look at the ingredients, calorie content, and how my dog reacts after eating them.
1. Check the Calorie Density
When I buy high-calorie dog treats, I first look at how many calories are packed into each piece or serving. I prefer treats that provide a lot of energy in a small amount, especially if my dog has a small appetite. This helps me add calories without making my dog feel too full.
2. Look for Quality Ingredients
I always read the ingredient list carefully. I like treats made with real meat, healthy fats, eggs, peanut butter, oats, or sweet potatoes. I avoid treats with too many fillers, artificial colors, or unnecessary preservatives because I want the calories to come from good nutrition.
3. Choose Treats with Healthy Fats
In my experience, treats with healthy fats are very useful for weight gain. Ingredients like chicken fat, fish oil, flaxseed, and peanut butter can help increase calorie intake. I just make sure the fat content is appropriate for my dog and doesn’t upset their stomach.
4. Consider Digestibility
A high-calorie treat is only helpful if my dog can digest it well. I usually start with a small amount and watch for signs like loose stool, gas, or vomiting. If my dog handles the treat well, I slowly increase it as part of a balanced feeding plan.
5. Pick the Right Texture
I’ve found that soft treats are easier for some dogs to chew and digest, especially older dogs or dogs with dental issues. Crunchy treats can also work, but I choose based on what my dog prefers and what is easiest for them to eat consistently.
6. Watch Portion Size
Even though I want my dog to gain weight, I still control portions. Too many treats can replace regular meals or cause digestive problems. I use treats as a supplement, not a full meal replacement, unless my veterinarian recommends otherwise.
7. Match the Treat to My Dog’s Needs
I think about my dog’s age, size, activity level, and health condition before buying anything. A puppy, senior dog, or active working dog may need different calorie support. If my dog has allergies or a sensitive stomach, I look for limited-ingredient options.
8. Ask My Veterinarian if Needed
If my dog is underweight for no clear reason, I always check with my vet first. Weight loss can sometimes signal an underlying health issue, and I don’t want to rely on treats alone. My vet can help me choose the safest and most effective option.
Final Thoughts
When I shop for high-calorie dog treats to help my dog put on weight, I look for nutritious ingredients, good digestibility, and the right calorie level. I’ve learned that the best treat is one that supports healthy weight gain without causing stomach problems or replacing balanced meals.
Final Thoughts
I’ve found that high calorie dog treats can be a helpful way to support healthy weight gain when they’re used as part of a balanced diet. My key takeaway is to choose nutrient-dense treats, offer them in moderation, and keep an eye on your dog’s overall health and weight progress. I always recommend checking with a veterinarian first, especially if your dog is underweight for medical reasons.
Author Profile
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I’m Hannah Mercer, a Pittsburgh-based writer who has always paid attention to the small things that make a home feel easier to live in. I notice when a lamp improves a dark corner, when storage actually saves space, and when a product looks better online than it does in real life.
My background around home goods, displays, and practical setups taught me to look beyond packaging. I care about the details people often discover later, like awkward assembly, weak materials, misleading sizing, or features that sound useful but are not.
Through Millwright Projects, I share honest thoughts on products that can make everyday routines simpler, calmer, and less frustrating. I write for people who want useful choices, not more clutter, hype, or buyer’s regret.
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