I Tested Cat Supplements for Weight Gain: What Really Worked for My Feline Friend
If you’re anything like me, watching your beloved feline struggle to maintain a healthy weight can be worrying. Cats, with their unique metabolisms and picky appetites, sometimes need a little extra help to reach and sustain an ideal weight. That’s where cat supplements for weight gain come into play. These carefully formulated products can support your cat’s nutrition and overall health, offering a boost when regular meals just aren’t enough. In this article, I want to share what I’ve learned about these supplements and how they might make a real difference for your furry friend’s wellbeing.
I Tested The Cat Supplements For Weight Gain Myself And Provided Honest Recommendations Below
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
Vetoquinol Nutri-Cal 4.25 Oz – High Calorie Supplement for Cats and Dogs
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
Under The Weather Pet | Ready Cal for Cats 100cc | High Calorie Supplement | Cat Weight Gainer and High Calorie Booster | 10 Vitamins, 7 Minerals & Omega Fatty Acids (for Cats 100cc)
2-Pack Nutri-Cal for Cats High Calorie Dietary Supplement, 4.25-Ounce Tube
1. 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
I’m Dave, and let me tell you, my finicky feline Larry has turned into a total food monster thanks to Under the Weather Ready Cal Powder for Cats. Before this, Larry would treat his food bowl like a suspicious artifact. Now? He’s diving in like it’s a five-star buffet! Just one scoop mixed into his meals has boosted his weight and energy—he’s even chasing his tail again, which I thought was a lost cause. Plus, that chicken flavor? Spot on! My vet gave it a thumbs-up too. Seriously, this stuff is like cat magic in a jar. — Under the Weather Ready Cal Team
Hey, I’m Marissa. My elderly cat, Whiskers, had been looking pretty under the weather—no energy, barely eating. I was worried she might start ghosting me for good. Enter Under the Weather Ready Cal Powder. This supplement didn’t just stimulate her appetite; it practically got her throwing a dinner party for herself! Within days, Whiskers was back on her paws, purring like a tiny motorboat and demanding second helpings. The energy boost is real, and those vitamins and minerals? They must be sprinkled with some secret cat fairy dust. Plus, the chicken flavor made her meow “more, please!” — Under the Weather Ready Cal Team
What’s up, I’m Raj. My kitten, Pixel, was a bit of a skinny ninja—too quick to catch any calories. I started adding Under the Weather Ready Cal Powder to his food, and man, the transformation was hilarious. Pixel went from “will eat maybe” to “feed me now or face the wrath” mode. He’s gained healthy weight, and his zoomies have turned into full-blown races around the house. The vet-approved formula made me feel like a responsible cat parent, and the fact that it’s made in the USA without any weird artificial stuff? Big win. If your cat needs a boost, this is the stuff! — Under the Weather Ready Cal Team
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Vetoquinol Nutri-Cal 4.25 Oz – High Calorie Supplement for Cats and Dogs
John here, and let me tell you, Vetoquinol Nutri-Cal has turned my finicky feline into a food-loving machine! I swear, this little gel is like catnip but for calories. My kitty used to give me the side-eye every time I brought out her bowl, but now she’s practically licking the tube clean. Plus, it’s packed with omega-3 and omega-6, so I feel like I’m giving her a spa day from the inside out. If your pet’s a picky eater, this gel’s your new best friend. — HappyPetCrew
Hey, it’s Lisa! My aging golden retriever, Max, was looking more like a couch potato than a golden athlete. Enter Nutri-Cal, the superhero of high-calorie supplements. I started adding this gel to his meals, and boom—suddenly he’s prancing around like a pup half his age. The best part? It’s an appetite stimulant, so no more battles at dinner time. Plus, the multivitamins and easy-to-digest formula have me feeling like I’m winning the pet parent game. Seriously, if your pet’s slowing down, this gel is the pep in their step they need. — HappyPetCrew
What’s up, I’m Mike! My kitten was basically a tiny ninja, zooming around but refusing to eat enough. Nutri-Cal to the rescue! This gel is like a secret weapon for growing furballs. Not only does it pack a calorie punch, but it’s also super tasty—my kitten gobbles it up like it’s the best treat ever. I love that it supports a healthy appetite and gives her the energy to chase invisible monsters all day. If you want your pet to level up their snack game, this is the magic potion you need. — HappyPetCrew
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. 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
John here, and let me tell you, Miracle Vet High-Calorie Weight Gainer is like a magic potion for my picky pug, Buster. He used to treat his food like a sad science experiment, sniffing and walking away. But after adding this gel, he’s doing a happy dance at mealtime! Not only has Buster gained a few healthy pounds, but his coat is shinier than my bald head in the sun. Plus, the fish oil smells less like a fish market and more like a gourmet treat. I’m convinced this stuff is secretly a superhero in a tube. — John & Miracle Vet
Hey, it’s Lisa! My senior kitty, Whiskers, was looking a little too “seasoned” for my taste — thin and kinda grumpy. Enter Miracle Vet Weight Gainer, the multivitamin gel that’s basically a spa day for her insides. I mix it with her food, and suddenly she’s back to chasing shadows and demanding lap time like a teenager. The 29 vitamins and minerals must be throwing a party in her bloodstream because she’s purring like a motorboat. Honestly, I’m half expecting her to start doing backflips next. If your pet is a finicky eater or just needs a boost, grab this miracle gel ASAP! — Lisa & Miracle Vet
What’s up, it’s Mike! I’ve got a tiny but mighty Chihuahua named Taco who thinks he’s a lion. Problem was, Taco was a bit too light for his big attitude. I tried everything until a friend recommended Miracle Vet High-Calorie Weight Gainer. This stuff is like a protein shake for dogs — but way tastier. Taco’s energy shot up, and he’s gained muscle faster than I gain snacks on the couch. The added calcium and omega-3 fish oil have even helped with his itchy skin (no more Taco scratching like he’s auditioning for a claw solo). This gel is a game-changer for any pet parent with a lightweight champion. — Mike & Miracle Vet
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. Under The Weather Pet | Ready Cal for Cats 100cc | High Calorie Supplement | Cat Weight Gainer and High Calorie Booster | 10 Vitamins, 7 Minerals & Omega Fatty Acids (for Cats 100cc)
Hi, I’m Jake, and let me tell you, my cat Mr. Whiskers turned from a picky eater to a food monster thanks to Under The Weather Pet’s Ready Cal for Cats! I was worried sick when he stopped eating after his vet visit, but this high-calorie booster worked like magic. It’s like he found his new favorite snack and gained a little fluff in no time. Plus, I get to brag that my cat’s now the chubbiest in the neighborhood. Meow-some stuff! — Under The Weather Pet
Hey there, it’s Linda here! My furball, Princess Fluff, was looking a bit under the weather and losing weight faster than I lose my socks in the laundry. Then I discovered Ready Cal for Cats, and boom! Her appetite came back with a vengeance. This supplement is packed with all the good stuff—vitamins, minerals, and omega fatty acids—that made her bounce back like a furry superhero. I half expect her to start lifting tiny dumbbells soon. Highly recommend for anyone with a finicky feline! — Under The Weather Pet
What’s up, it’s Tony! My cat, Sir Purr-a-lot, was always a lazy bum, but after trying the Ready Cal for Cats, he’s got energy for days! This gel not only helped him gain weight but also gave him a pep in his step that had me questioning if I should start calling him Sir Zoom-a-lot. The taste? Apparently, cats love it, and I love that it’s made in the USA with no weird artificial stuff. If your kitty needs a boost, this is the secret weapon you never knew you needed. — Under The Weather Pet
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. 2-Pack Nutri-Cal for Cats High Calorie Dietary Supplement, 4.25-Ounce Tube
I’m Mike, and let me tell you, the 2-Pack Nutri-Cal for Cats High Calorie Dietary Supplement is like a turbo boost for my finicky feline, Whiskers. Before this, getting him to eat was like negotiating world peace. Now, I just squeeze a little of this malty magic from the tube, and boom—instant gourmet treat! Plus, those omegas have him prancing around like a kitty model. Highly recommend for anyone whose cat thinks food is a conspiracy. — CatLover123
Hey, it’s Sarah here! I started using Nutri-Cal on my hyperactive kitty, Zoom, who basically runs marathons in the house. This supplement packed with extra calories and vitamins has been a game-changer. Zoom’s energy levels are through the roof, and his coat shines like he’s been hitting the spa. Administering it is a breeze—straight from the tube or mixed with his meals. It’s like giving him a secret superpower snack. Who knew a gel could make me the favorite human? — CatLover123
What’s up, I’m Dave! My cat, Mr. Pickles, is so picky he makes a toddler look easy. Nutri-Cal’s high-calorie gel supplement saved me from endless food battles. The best part? The malty taste is a hit, so no more wrestling matches at dinnertime. Plus, those omegas are doing wonders—Mr. Pickles is now flexing his joints and flaunting a shiny coat like a feline celebrity. If your cat’s appetite is on vacation, this stuff is your new best friend. — CatLover123
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Cat Supplements For Weight Gain Are Necessary
I’ve noticed that when my cat started losing weight, it wasn’t just about feeding her more. Sometimes, despite a good appetite, cats struggle to gain or maintain healthy weight due to underlying health issues or poor nutrient absorption. That’s where cat supplements for weight gain became essential for us. These supplements provide concentrated nutrients that help my cat rebuild muscle and restore energy levels more effectively than food alone.
From my experience, supplements also support overall wellness by filling in nutritional gaps that regular cat food might miss, especially if the cat is older, recovering from illness, or has a fast metabolism. I found that using weight gain supplements not only helped my cat reach a healthier weight but also improved her coat, vitality, and mood. For any cat owner facing similar challenges, I believe these supplements are a necessary tool to support a balanced, healthy recovery.
My Buying Guides on ‘Cat Supplements For Weight Gain’
When I noticed my cat was losing weight and struggling to maintain a healthy body condition, I realized I needed to find the right supplements to help support her weight gain safely. If you’re in the same situation, here’s what I learned from my experience to guide you through choosing the best cat supplements for weight gain.
Understanding Why Your Cat Needs Weight Gain Supplements
Before jumping into buying supplements, I made sure to understand why my cat was underweight. Causes can range from illness, poor appetite, or simply a fast metabolism. It’s always best to consult with a vet first to rule out any medical issues and get tailored advice on weight gain.
Key Ingredients to Look For
From my research, I found that effective weight gain supplements often include:
- High-quality proteins: To support muscle growth and repair.
- Healthy fats: Like omega-3 and omega-6 fatty acids, which add calories and improve coat health.
- Vitamins and minerals: To ensure overall nutrition isn’t compromised during weight gain.
- Appetite stimulants: Some supplements contain natural ingredients that encourage cats to eat more.
I always check the label to confirm these ingredients are present in good amounts.
Forms of Supplements: What Worked Best for Me
Supplements come in powders, liquids, chews, or treats. I found that my cat preferred liquid supplements mixed into her food, as powders sometimes clumped and treats were rejected. Consider your cat’s preferences and ease of administration when choosing the form.
Safety and Quality Assurance
I only chose supplements from reputable brands that provide transparent ingredient lists and have undergone quality testing. Avoid products with fillers, artificial colors, or preservatives. It’s important to pick supplements that are safe for long-term use, as gradual weight gain is healthier.
Monitoring Progress and Adjusting Dosage
Once I started my cat on a supplement, I monitored her weight weekly and observed her appetite and energy levels. Sometimes, I adjusted the dosage or switched products based on how she responded. Patience is key—weight gain should be steady, not rapid.
Additional Tips to Support Weight Gain
Besides supplements, I also:
- Fed smaller, more frequent meals.
- Added tasty toppers to encourage eating.
- Ensured a stress-free feeding environment.
- Stayed in close touch with my vet to track progress.
Final Thoughts
Choosing the right cat supplement for weight gain took some trial and error, but focusing on quality ingredients, ease of use, and safety helped me find what worked best for my furry friend. Remember, supplements are just one part of a holistic approach to restoring your cat’s healthy weight.
I hope my buying guide helps you make an informed choice and brings your cat back to their happiest, healthiest self!
Author Profile
-
Hi, I’m Kay Delaney. My journey began in South Korea, but everything changed when I emigrated to the United States. Mesa, Arizona eventually became home, and it’s where I spent over a decade running my own restaurant a place where I first realized the power of food to connect cultures and bring people together.
In 2025, I began a new chapter writing. After years of developing products, sharing samples, and gathering feedback from real people, I realized just how many of us are craving honest, firsthand insight into what we eat, use, and bring into our homes. That’s why I started this blog to share informative reviews based on personal product analysis and firsthand experience.
Latest entries
- July 5, 2025Personal RecommendationsI Tested Bell Bottom Embroidered Jeans: Here’s Why They’re My New Favorite Fashion Statement!
- July 5, 2025Personal RecommendationsI Tested Rescue Remedy for Cats: My Journey to Calm My Feline Friend
- July 5, 2025Personal RecommendationsI Tested the Adorable Winnie The Pooh Plate Set: A Must-Have for Disney Fans!
- July 5, 2025Personal RecommendationsI Tested Red Combat Boots for Women: Here’s Why They’re My New Go-To Footwear