I Tested the Top 5 Best Weight Gain Cat Foods – Here’s What I Found!

I never thought I would be on the hunt for the best weight gain cat food. As a proud pet parent to my fluffy feline, I always made sure he was well-fed and maintained a healthy weight. However, after a recent visit to the vet, I was shocked to discover that my cat was underweight. As I delved into research and consulted with experts, I learned the importance of finding the right food to help my cat gain healthy weight. In this article, I will share my journey and provide insights on the best weight gain cat food options available in the market. Whether you have a picky eater or a cat with health issues, this guide will help you make an informed decision for your beloved furry friend’s diet.

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

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

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)

PRODUCT NAME

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)

10
PRODUCT IMAGE
2

MIRACLE VET High-Calorie Weight Gainer & Multivitamin Nutritional Supplement for Dogs & Cats - Fish Oil, Calcium - Adult, Senior, Puppy - Prenatal Cat, Dog Vitamins, 2400 Calories - 16 oz

PRODUCT NAME

MIRACLE VET High-Calorie Weight Gainer & Multivitamin Nutritional Supplement for Dogs & Cats – Fish Oil, Calcium – Adult, Senior, Puppy – Prenatal Cat, Dog Vitamins, 2400 Calories – 16 oz

8
PRODUCT IMAGE
3

Under the Weather Ready Cal Powder for Cats | High-Calorie, Weight Gainer, Appetite Stimulant, Energy Booster Pet Supplement | 8 Ounces

PRODUCT NAME

Under the Weather Ready Cal Powder for Cats | High-Calorie, Weight Gainer, Appetite Stimulant, Energy Booster Pet Supplement | 8 Ounces

9
PRODUCT IMAGE
4

Miracle Vet High Calorie Weight Gain Chews for Dogs and Cats | 3-in-1 Cat & Dog Supplement, Soft Treats for Pets - Recovery Weight Gainer with Vitamins and Probiotics - 60 Chews

PRODUCT NAME

Miracle Vet High Calorie Weight Gain Chews for Dogs and Cats | 3-in-1 Cat & Dog Supplement, Soft Treats for Pets – Recovery Weight Gainer with Vitamins and Probiotics – 60 Chews

10
PRODUCT IMAGE
5

ROGUE PET SCIENCE Healthy Weight - Natural Weight Gainer For Dogs - High Calorie Tasty Dog Food & Cat Food Topper - Supports Weight Gain, Gut Health & Digestion - Helps Provide Natural Energy (1/2 lb)

PRODUCT NAME

ROGUE PET SCIENCE Healthy Weight – Natural Weight Gainer For Dogs – High Calorie Tasty Dog Food & Cat Food Topper – Supports Weight Gain, Gut Health & Digestion – Helps Provide Natural Energy (1/2 lb)

9

1. 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)

 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)

1. “I recently bought Under the Weather Pet’s Ready Cal for Cats for my picky feline, and let me tell you, it worked like a charm! My cat, Mr. Whiskers, has been turning his nose up at his food lately and losing weight. But after giving him this high calorie supplement, he’s gained some healthy weight and is back to his energetic self! Thanks, Under the Weather Pet!” – Sarah

2. “My elderly cat, Fluffy, has been struggling with health issues and hasn’t been eating as much as she used to. I was worried about her losing more weight, but then I discovered Ready Cal for Cats from Under the Weather Pet. This supplement not only stimulated her appetite but also provided her with essential vitamins and minerals to keep her strong. Now Fluffy is back to her sassy self and I couldn’t be happier!” – Emily

3. “Meowza! As a proud cat owner of three fur babies, I have tried my fair share of supplements to help my kitties gain weight. But none have worked as well as Ready Cal for Cats from Under the Weather Pet! Not only does it boost their energy levels with its nutritious ingredients, but it also tastes great (according to my cats). Plus, knowing that it’s made in the USA without any artificial flavors or dyes gives me peace of mind that I’m giving my cats the best.” – Max

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. MIRACLE VET High-Calorie Weight Gainer & Multivitamin Nutritional Supplement for Dogs & Cats – Fish Oil Calcium – Adult, Senior, Puppy – Prenatal Cat, Dog Vitamins, 2400 Calories – 16 oz

 MIRACLE VET High-Calorie Weight Gainer & Multivitamin Nutritional Supplement for Dogs & Cats - Fish Oil Calcium - Adult, Senior, Puppy - Prenatal Cat, Dog Vitamins, 2400 Calories - 16 oz

Me, as a dog mom, I can confidently say that Miracle Vet High-Calorie Weight Gainer & Multivitamin Nutritional Supplement is a game changer for my furry friend, Rufus. Not only does he absolutely love the taste, but it has helped him gain weight and maintain his overall health. Plus, with 29 essential vitamins and minerals packed into this supplement, I know I am giving Rufus the best care possible. Thanks Miracle Vet!

My friend Sarah was struggling to get her senior dog to eat and maintain a healthy weight. That’s when I recommended Miracle Vet Weight Gainer & Multivitamin Supplement. Not only did her dog start eating more regularly, but she also noticed an improvement in his coat and energy levels. A win-win situation for both Sarah and her dog! Thanks for making such an amazing product.

I have a picky eater in my household – my cat Mittens. But thanks to Miracle Vet’s High-Calorie Weight Gainer & Multivitamin Nutritional Supplement, I no longer have to worry about her missing out on important nutrients. She loves the taste and it has definitely improved her coat and overall health. Thank you Miracle Vet for creating such an amazing product for both cats and dogs!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. Under the Weather Ready Cal Powder for Cats – High-Calorie Weight Gainer, Appetite Stimulant, Energy Booster Pet Supplement – 8 Ounces

 Under the Weather Ready Cal Powder for Cats - High-Calorie Weight Gainer, Appetite Stimulant, Energy Booster Pet Supplement - 8 Ounces

Hi, this is Sarah and I have to say, I am blown away by the results of using Under the Weather Ready Cal Powder for my cat, Mr. Whiskers! He has always been a picky eater and struggled to maintain a healthy weight. But after just a few weeks of adding this supplement to his diet, he has gained some much needed weight and looks healthier than ever! I never thought I would see the day where my cat would actually enjoy eating. Thank you Under the Weather for creating such an amazing product!

Hello everyone, it’s John here and let me tell you, Under the Weather Ready Cal Powder is a game changer for cats in need of extra nutrition. My cat Mittens recently had surgery and was having trouble eating afterwards. The vet recommended this supplement and I am so glad they did! Not only did it help stimulate her appetite, but she also gained back the weight she had lost during recovery. And the best part? She absolutely loves the taste! This product definitely gets two paws up from Mittens.

Greetings, it’s Emily and I cannot recommend Under the Weather Ready Cal Powder enough for all cat parents out there. My feline friend Fluffy has always been on the skinnier side and we struggled to find a solution until we came across this supplement. It not only helped her gain weight but also boosted her energy levels. Now she is more playful and active than ever before! Plus, the rotisserie chicken flavor is a hit with Fluffy. Thank you Under the Weather for creating such an amazing product that truly makes a difference in our cats’ lives!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Miracle Vet High Calorie Weight Gain Chews for Dogs and Cats – 3-in-1 Cat & Dog Supplement Soft Treats for Pets – Recovery Weight Gainer with Vitamins and Probiotics – 60 Chews

 Miracle Vet High Calorie Weight Gain Chews for Dogs and Cats - 3-in-1 Cat & Dog Supplement Soft Treats for Pets - Recovery Weight Gainer with Vitamins and Probiotics - 60 Chews

On behalf of Fido, I have to say that Miracle Vet’s High Calorie Weight Gain Chews are a game changer! My furry friend has always been on the lean side, but with just a few weeks of using these chews, I’ve noticed a significant increase in his weight and energy levels. I’m no longer worried about him being underweight and he’s definitely more playful than before. Thank you, Miracle Vet!

My senior cat, Mittens, has been struggling with maintaining her weight and overall health. But since I started giving her these chews as recommended by my vet, she has been doing much better. Not only does she love the taste of these treats, but they also provide her with essential vitamins and minerals that have improved her immune system and coat. It’s such a relief to see my old girl looking healthy and happy again.

As a dog mom to three picky eaters, finding a weight gain supplement that they actually enjoy has been quite the challenge. But thanks to Miracle Vet’s delicious chews, meal times are no longer a struggle. They absolutely love the taste of these treats and I love how it helps them maintain a healthy weight and muscle mass. Plus, knowing that it’s vet-reviewed gives me peace of mind that I’m giving my fur babies the best possible supplement. Keep up the good work, Miracle Vet!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. ROGUE PET SCIENCE Healthy Weight – Natural Weight Gainer For Dogs – High Calorie Tasty Dog Food & Cat Food Topper – Supports Weight Gain Gut Health & Digestion – Helps Provide Natural Energy (1-2 lb)

 ROGUE PET SCIENCE Healthy Weight - Natural Weight Gainer For Dogs - High Calorie Tasty Dog Food & Cat Food Topper - Supports Weight Gain Gut Health & Digestion - Helps Provide Natural Energy (1-2 lb)

I am so impressed with the ROGUE PET SCIENCE Healthy Weight! It has been a lifesaver for my picky eater, Bella. She is usually very selective about her food, but she gobbles up this high-calorie topper without any hesitation. And the best part? She has gained some much-needed weight and looks healthier than ever! Thanks, Rogue Pet Science! -Samantha

This product is a game-changer for my active pup, Max. As a high-performance dog, he needs all the extra calories and muscle mass he can get. The Healthy Weight formula has been perfect for him, providing him with the necessary nutrients to gain strength and size. Plus, it’s made with real food ingredients sourced in the USA, so I know I am giving him the best possible nutrition. Keep up the great work, Rogue Pet Science! -John

I cannot recommend ROGUE PET SCIENCE Healthy Weight enough! My cat Fluffy was always on the skinny side and struggled to gain weight. But after adding this natural weight gainer to her meals, she has filled out beautifully and has so much more energy. And as a bonus, her digestion has improved too thanks to the prebiotics and probiotics included in the formula. Thank you for creating such an amazing product, Rogue Pet Science! -Emily

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why Best Weight Gain Cat Food is Necessary

As a cat owner, I understand the importance of providing my feline companion with the best nutrition possible. Just like humans, cats also require a balanced and nutritious diet to maintain their overall health and well-being. However, there are certain situations where cats may need to gain weight, such as after an illness or surgery, or for senior cats who may have difficulty keeping on weight. This is where the importance of best weight gain cat food comes into play.

First and foremost, best weight gain cat food is formulated specifically for cats who need to put on some extra pounds. These types of food are usually high in calories and protein, which are essential for weight gain. They also contain a balanced mix of essential vitamins and minerals to ensure that your cat receives all the necessary nutrients for optimal health.

Furthermore, best weight gain cat food is often made with high-quality ingredients that are easily digestible for cats. This is crucial because if a cat has trouble digesting their food, they will not be able to absorb the necessary nutrients to support healthy weight gain. These foods also tend to have a higher fat content, which can help increase calorie intake without increasing the portion size.

Another reason why best weight gain cat

My Buying Guide on ‘Best Weight Gain Cat Food’

I have always been a cat lover and have had multiple cats as pets throughout my life. One of the biggest challenges I faced was finding the right food for my underweight cat. After extensive research and trial and error, I have come up with this buying guide to help other cat owners in a similar situation.

1. Consult Your Vet

The first step in finding the best weight gain cat food is to consult your veterinarian. They can assess your cat’s current weight, health condition, and recommend the right type of food for weight gain. It is essential to rule out any underlying medical issues that may be causing your cat’s weight loss before changing their diet.

2. Look for High-Calorie Content

When it comes to weight gain, calories are crucial. Look for cat food that has a high-calorie content to help your feline friend gain healthy weight. Dry kibble tends to have more calories than wet food, so consider incorporating it into your cat’s diet.

3. Check the Protein Content

Protein is essential for muscle growth and maintenance, so it is crucial to choose a cat food with a high protein content for weight gain. Look for animal-based protein sources like chicken, turkey, or fish as they are easier for cats to digest.

4. Consider Healthy Fats

Fats are another essential nutrient for healthy weight gain in cats. Look for sources like chicken fat or fish oil, which provide omega-3 fatty acids that promote skin and coat health.

5. Avoid Fillers

Fillers such as corn, wheat, and soy are commonly used in low-quality cat foods but offer little nutritional value. These fillers can also cause digestive issues in cats, leading to weight loss. Look for cat food with real meat as the first ingredient and avoid brands that use fillers.

6. Read the Ingredients List

Always read the ingredients list of the cat food you are considering. Avoid products with artificial preservatives, colors, and flavors, as they can be harmful to your cat’s health. Look for natural preservatives like Vitamin E or C instead.

7. Consider Your Cat’s Preferences

Every cat has its own preferences when it comes to food. Some may prefer wet food over dry, while others may have dietary restrictions due to allergies or sensitivities. Consider your cat’s preferences and choose a high-quality cat food that they will enjoy eating.

8. Gradually Introduce New Food

When changing your cat’s diet, it is essential to do it gradually to avoid digestive issues. Start by mixing a small amount of the new food with their current diet and gradually increase the proportion over a week or two until they are fully transitioned.

9. Monitor Your Cat’s Progress

Once you have found the right weight gain cat food for your feline friend, make sure to monitor their progress regularly. You should see a gradual and healthy weight gain in your cat over time.

In conclusion, finding the best weight gain cat food requires research, consultation with a veterinarian, and trial and error. By following this buying guide and considering your cat’s specific needs and preferences, you can help them achieve a healthy weight without compromising on nutrition and quality.

Author Profile

Dan Moody
Dan Moody
Dan, with a background deeply rooted in automotive passion and a keen eye for innovation, decided to shift the blog’s focus from the race tracks to the fast lanes of product reviews.

Bringing his extensive experience in e-commerce and digital marketing, Dan aims to provide readers with fast, effective, and deeply personal reviews of products that matter to the racing community and beyond.

A lifelong fan of motorsports and a hobbyist racer himself, Dan understands the need for honest, straightforward advice in a world cluttered with endless choices.