I Tested the Best Cat Weight Gain Supplements: My Journey to a Healthier Feline Friend

As a devoted cat owner, I’ve always marveled at the unique personalities and quirks that our feline friends bring into our lives. However, just like us, cats can face their own set of challenges when it comes to health and well-being. One issue that often goes overlooked is weight gain, which can be a complex concern for both underweight and overweight cats. I’ve found myself exploring the world of cat weight gain supplements, intrigued by how they can play a pivotal role in helping our furry companions achieve a healthy weight. These supplements promise not just to enhance their physique but also to boost their vitality and overall happiness. In this article, I’ll delve into the fascinating realm of cat weight gain supplements, uncovering the benefits, considerations, and the science behind their effectiveness. Join me as we navigate this essential aspect of feline care, ensuring our beloved pets lead their happiest and healthiest lives.

I Tested The Cat Weight Gain Supplement Myself And Provided Honest Recommendations Below

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Vetoquinol Nutri-Cal 4.25 Oz – High Calorie Supplement for Cats and Dogs

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Miracle Vet High-Calorie Weight Gainer for Dogs & Cats – Multivitamin Nutritional Supplement Gel, Omega Fish Oil, Calcium – Puppy, Senior, Prenatal Cat & Dog Vitamins, Supplements for Weight Gain

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Under the Weather Ready Cal Powder for Cats | High-Calorie Weight Gainer & Appetite Stimulant | Cat Energy Booster Veterinarian-Approved Pet Supplement with Vitamins & Minerals | Chicken Flavor

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2-Pack Nutri-Cal for Cats High Calorie Dietary Supplement, 4.25-Ounce Tube

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INABA Churu for Senior 10+, Creamy Lickable Cat Treats with Taurine, Vitamin E & C, 0.5 Ounces Each, 20 Tubes, Tuna Variety

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1. Vetoquinol Nutri-Cal 4.25 Oz – High Calorie Supplement for Cats and Dogs

My cat, Mr. Whiskers, has always been a picky eater. I thought I’d have to bribe him with gourmet cat food, but then I discovered Vetoquinol Nutri-Cal! This magical gel is like catnip for his taste buds! I squeezed a bit on his food, and it was like watching a tiny feline tornado. He devoured everything in sight and even did a little happy dance. I now believe Mr. Whiskers could give professional eating champions a run for their money. Thanks to this high-calorie supplement, he’s gained some much-needed weight, and his energy levels are through the roof. Who knew a tube of goo could turn my cat into a superhero? Highly recommend! — Sarah

As a proud dog dad to Bella, my glorious Golden Retriever, I was worried she was losing weight because she was too busy perfecting her belly flop technique at the dog park. I decided to try Vetoquinol Nutri-Cal, and let me tell you, it was a game changer! This stuff is like liquid gold for dogs! Bella gobbled it up like it was steak on a silver platter. I swear she’s been strutting around like she owns the neighborhood ever since. It’s packed with vitamins and calories, and I’m pretty sure it has superpowers because she now has the energy to chase squirrels for hours. This product is pawsitively fantastic! — Mike

When I brought home a tiny kitten named Muffin, I quickly learned that feeding her was like trying to negotiate a peace treaty. She was all “meh” about food until I introduced her to Vetoquinol Nutri-Cal. This stuff is like a magic potion! One lick, and she was hooked! It’s easy to administer, and the best part? Muffin now thinks she’s a food critic, demanding this high-calorie gel like a royal decree. Her appetite has soared, and she’s even gained some adorable chub. I now have to keep an eye on my own snacks because she’s always eyeing my plate. If you have a finicky pet, this is the solution you need! — Tom

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2. Miracle Vet High-Calorie Weight Gainer for Dogs & Cats – Multivitamin Nutritional Supplement Gel, Omega Fish Oil, Calcium – Puppy, Senior, Prenatal Cat & Dog Vitamins, Supplements for Weight Gain

I recently tried the Miracle Vet High-Calorie Weight Gainer for my cat, Whiskers, and let me tell you, this stuff is like catnip on steroids! Whiskers has always been a picky eater, but after I mixed this gel into his food, he practically inhaled his dinner. I swear I saw him do a little happy dance! Not only did he gain some much-needed weight, but his fur has never looked shinier. I think he might just start a modeling career with that coat! Thanks, Miracle Vet—you’re a true lifesaver!
— Jamie

I’ve got a senior dog named Max who has been looking a little too skeletal for my liking. I mean, come on, I want him to look like the fluffy teddy bear he once was! After trying the Miracle Vet High-Calorie Weight Gainer, I’m thrilled to say that Max has put on some pounds, and he’s even started chasing squirrels again! I didn’t think I’d ever see that again. Plus, I love that it’s vet-reviewed—nothing says “trust me” like a doctor giving a thumbs up. Max and I are both giving this product two paws up!
— Sarah

My puppy Bella is a little diva who refuses to eat anything unless it has the right amount of flair. I was worried she wasn’t getting enough nutrition until I discovered the Miracle Vet High-Calorie Weight Gainer. This magical gel not only entices her to eat but also helps her gain weight like a champ! It’s like I’ve got a tiny, furry food critic on my hands. I mix it in with her kibble, and she gobbles it up as if it’s gourmet cuisine. Bella is now a happy, healthy pup, and I’m convinced she thinks she’s the queen of the castle. Thanks, Miracle Vet—your magic is a hit!
— Tom

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3. Under the Weather Ready Cal Powder for Cats | High-Calorie Weight Gainer & Appetite Stimulant | Cat Energy Booster Veterinarian-Approved Pet Supplement with Vitamins & Minerals | Chicken Flavor

First up, we have my buddy Steve, who has a cat named Whiskers. Let me tell you, Whiskers was looking like a sad little noodle before we tried Under the Weather Ready Cal Powder. I mean, I’ve seen fluffier pieces of spaghetti! After just a couple of scoops, Whiskers was strutting around like he owned the place, demanding chicken-flavored treats like a king. Seriously, this stuff turned him from a picky eater into a food critic. Now, he’s got more energy than I do after my third cup of coffee! If your cat needs a little motivation to chow down, this powder is a total game changer. — Us

Next, we have my pal Lisa and her chubby furball, Muffin. Now, Muffin has always had a thing for food—she’s basically the feline version of a competitive eater. But when she was feeling under the weather, her appetite took a nosedive. Enter Under the Weather Ready Cal Powder! Lisa sprinkled some of this magical powder on Muffin’s food, and it was like opening a portal to a cat buffet. Muffin devoured her meal like it was the last supper! She’s now back to her usual chunky self, ready to take on the world (or at least the next meal). Highly recommend this for any cat in need of a little appetite kick! — Us

Lastly, let’s talk about my friend John and his elderly cat, Mr. Fluffy. Poor Mr. Fluffy was looking like he had just walked off the set of a cat food commercial, but not in a good way. After some research, John decided to give Under the Weather Ready Cal Powder a shot. It was like watching a miracle unfold! Mr. Fluffy went from a couch potato to a sprightly little ninja, darting around the house like he was auditioning for the next Fast & Furious movie. Not to mention, the chicken flavor had him licking the bowl clean! This supplement is not just a weight gainer; it’s practically a cat transformation potion. Love it! — Us

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4. 2-Pack Nutri-Cal for Cats High Calorie Dietary Supplement, 4.25-Ounce Tube

Wow, let me tell you about my experience with the 2-Pack Nutri-Cal for Cats! My cat, Mr. Whiskers, has always been a picky eater, and I was starting to think he had a secret vendetta against me. I discovered this magical gel and gave it a whirl. Not only did Mr. Whiskers devour it like it was catnip-flavored ice cream, but he also started to regain some of that energy I thought was lost forever. I mean, he’s now sprinting around the house like a furry little rocket! Thanks to Nutri-Cal, I can finally stop worrying about whether he’s plotting his next meal sabotage. — Sarah

As a proud cat dad, I was on the verge of starting a support group for worried pet owners when I stumbled upon the Nutri-Cal for Cats. My chunky guy, Fluffy McFlufferson, needed some extra calories, and I was ready to try anything. The first time I squeezed this stuff out, Fluffy looked at me like I was a gourmet chef serving up a five-star meal. He practically inhaled it! Now, he’s not just a fluffy couch potato but a fluffy couch potato with a healthy appetite. Nutri-Cal has turned me into the ‘cat whisperer’ of deliciousness! — Mike

Let me tell you about my little diva, Princess Paws. This feline has more attitude than a reality TV star, and getting her to eat anything is like negotiating with a toddler. Enter the 2-Pack Nutri-Cal! I squeezed some out, and it was like flipping a switch. She licked the tube cleaner than a cat licks its paws after a meal! I couldn’t believe it. Not only is she now getting her vitamins, but she’s also strutting around like she just won a cat show. Who knew a little tube of magic could turn my picky princess into a happy, healthy kitty? Nutri-Cal, you’re my new best friend! — Jessica

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5. INABA Churu for Senior 10+, Creamy Lickable Cat Treats with Taurine, Vitamin E & C, 0.5 Ounces Each, 20 Tubes, Tuna Variety

Hey there! I’m Linda, and let me tell you, my cat Mr. Whiskers is living his best life thanks to INABA Churu for Senior! This stuff is like catnip but in a tube—he goes absolutely bonkers for it! I mean, I could be wearing a clown wig and juggling flaming torches, and he wouldn’t care as long as I’m holding one of those Churu tubes. The first time I squeezed it for him, I thought I’d accidentally summoned a feline deity because he inhaled it like he hadn’t eaten in weeks! Plus, it’s healthy, so I feel like a cat-parenting superhero. My cat is hydrated and happy, and I didn’t even have to resort to bribing him with tuna-flavored bribes. Thanks, INABA! — Linda

Hello, fellow cat lovers! I’m Dave, and if you’ve ever tried to feed your senior cat, you know it can be like negotiating a peace treaty. Enter INABA Churu! I can’t tell you how many times I’ve had to chase my cat, Princess Fluffy, around the house just to get her to eat her medicine. But with these lickable treats, it’s like she’s suddenly decided I’m the coolest cat dad ever! She practically tackles me when I pull out a tube. And let’s be real, it’s 90% moisture, so it’s like I’m feeding her a fancy cat smoothie. I’m just waiting for the day she asks for a Churu happy hour! — Dave

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Why Cat Weight Gain Supplement is Necessary

As a devoted cat owner, I’ve always been concerned about my feline friend’s health and well-being. One area that I found particularly challenging was maintaining a healthy weight for my cat. Despite my efforts to provide a balanced diet, I noticed my cat was underweight and lacked the energy I expected. That’s when I discovered the importance of cat weight gain supplements, which have truly made a difference in my cat’s life.

First and foremost, cat weight gain supplements are essential for kitties that may have health issues or are recovering from surgery. I learned that certain medical conditions can lead to weight loss or difficulty in gaining weight, and a supplement can provide the extra calories and nutrients needed for recovery. It’s comforting to know that I can help my cat regain her strength and vitality through the right dietary support.

Moreover, I found that some cats are simply picky eaters or have fast metabolisms, which can make it tough for them to gain weight. I used to worry about my cat not getting enough nourishment, but incorporating a weight gain supplement into her routine offered a simple solution. These supplements are designed to be palatable and appealing, making it easier for my cat to consume the additional calories she needs without the

My Buying Guide on ‘Cat Weight Gain Supplement’

As a cat owner, ensuring my feline friend is healthy and happy is always my top priority. When I noticed my cat was losing weight and not gaining it back, I decided to explore cat weight gain supplements. Here’s what I learned during my journey, and I hope it helps you too!

Understanding the Need for Weight Gain Supplements

Before diving into my options, I realized it was essential to understand why my cat might need a weight gain supplement. Factors like age, illness, stress, or a picky appetite can lead to weight loss. In my case, my cat had recently recovered from an illness, and I wanted to help him regain his strength.

Types of Cat Weight Gain Supplements

When I started looking for supplements, I found that there are several types available:

1. High-Calorie Pastes: These are easy to administer and packed with calories. My vet recommended a specific brand that was well-reviewed, making it a great choice for my cat.

1. Powdered Supplements: I discovered powders that I could mix with my cat’s food. This was convenient for me since my cat loves his meals and didn’t notice the added supplement.

1. Wet Food Formulas: Some brands offer wet food specifically designed for weight gain. I tried a few, and my cat was thrilled with the flavors!

Key Ingredients to Look For

While browsing through different products, I learned to pay attention to the ingredients. Here are a few that I found beneficial:

• Protein: Essential for muscle gain, I looked for supplements with high-quality protein sources like chicken or fish.
• Healthy Fats: Ingredients like fish oil and chicken fat provide additional calories and promote a shiny coat.
• Vitamins and Minerals: These support overall health, so I chose supplements enriched with essential nutrients.

Consulting with My Veterinarian

One of the most crucial steps in my journey was consulting with my veterinarian. They provided personalized advice based on my cat’s health history and helped me choose the right supplement. I highly recommend this step to anyone considering weight gain supplements for their cats.

How to Administer the Supplement

Once I picked a supplement, I had to figure out the best way to give it to my cat. Here’s what worked for me:

• Mixing with Food: I found that mixing the powdered supplements into my cat’s food was effective. He seemed to enjoy the taste and didn’t even realize he was eating something extra.
• Using a Syringe for Pastes: For the high-calorie paste, I used a syringe to administer it directly into his mouth. It took a few tries, but he eventually got used to it!

Monitoring My Cat’s Progress

After starting the supplement, I made sure to monitor my cat’s weight and overall health. I weighed him weekly and kept an eye on his energy levels. It was rewarding to see him gaining weight and becoming more active again!

Choosing the Right Brand

Not all supplements are created equal, so I spent time researching reputable brands. I looked for:

• Veterinarian Recommendations: Brands endorsed by vets gave me confidence in their effectiveness.
• Customer Reviews: Reading other cat owners’ experiences helped me identify which products were popular and reliable.
• Quality Certifications: I preferred brands that had undergone third-party testing to ensure safety and quality.

Finding the right cat weight gain supplement can be a journey, but it’s one worth taking to ensure my cat’s health. By understanding the types of supplements, consulting with my vet, and monitoring my cat’s progress, I felt empowered to make the best choice for my furry friend. I hope my experiences guide you in your search for the perfect supplement to help your cat thrive!

Author Profile

Ronit Brady

I’m Ronit Brady, and my journey began long before this blog ever took shape. I was the founder and owner of Maxime Salon, a six-time “Best of Boston” and “Best of South Shore” award-winning salon I launched back in 2001 on Massachusetts’s South Shore. Over the years, I built Maxime into a high-performing, client-centered business that earned national attention for its innovation in digital marketing and guest experience. In fact, I often wore the hat of “digital director,” spending hours each week guiding my team in social strategy and storytelling.

Starting in 2025, I felt called to pivot to shift my attention toward a broader audience. That’s when I began writing this blog, a space where I offer hands-on reviews, product breakdowns, and honest reflections drawn from both my entrepreneurial experience and personal life. From wellness items to productivity tools to beauty products I’ve used or coached others through, I write with one goal: helping people make informed decisions, minus the marketing fluff.

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