Top 8 Best High Calorie Cat Foods For Weight Gain (2026), Tested and Reviewed

Last Updated on May 21, 2026

Choosing the right high-calorie cat food is crucial for cats needing weight gain. Cats may lose weight due to age, illness, or stress.

Proper nutrition helps them regain their energy and health. High-calorie cat foods can be a game-changer. They provide essential nutrients and calories. This post explores top options for weight gain. Under the Weather Ready Cal Powder offers vitamins and minerals.

It boosts appetite and energy. PetAg’s High-Calorie Gel is easy to digest. Perfect for cats 8 weeks and older. Tiki Cat Silver Comfort Mousse is great for senior cats. It’s formulated for those aged 11 and up. Nutri-Cal supplements are convenient in tube form. They provide extra calories. Selecting the right food can make a big difference for your cat.

Under The Weather Ready Cal Powder For Cats

The Under the Weather Ready Cal Powder for Cats is an excellent choice for pet owners whose cats need a high-calorie weight gainer and appetite stimulant. Ideal customers are those whose cats are recovering from illness, surgery, or are naturally underweight. This cat energy booster provides essential vitamins and minerals to support their overall health, making it perfect for cats of all ages who need a nutritional boost.

Pros:

• Veterinarian-approved formula ensures safety and efficacy.
• Chicken flavor enhances palatability, making it appealing to cats.
• Contains essential vitamins and minerals that aid in recovery and health maintenance.
• Convenient packaging with dimensions ideal for easy storage and handling.

Cons:

• Some cats might not prefer powdered supplements compared to wet food or treats.
• Requires careful dosage measurement to avoid overfeeding.

The Ready Cal Powder is designed to be an energy booster for cats, especially those who might be experiencing a lack of appetite or energy due to various health issues. Its high-calorie content is formulated to help cats gain weight safely and effectively, providing them with the necessary energy to maintain daily activities and improve their overall well-being. The chicken flavor is a strategic choice to ensure that even finicky eaters find the supplement palatable, encouraging regular consumption without the fuss often associated with medicinal supplements.

One of the standout features of the Under the Weather Ready Cal Powder is its veterinarian-approved formula. This approval means pet owners can have peace of mind knowing that the supplement is safe for their cats, providing a reliable solution to support their pet’s health. The inclusion of vitamins and minerals in the formula not only aids in weight gain but also contributes to the overall health of the cat, supporting immune function and promoting recovery from illness. The packaging’s dimensions (Height: 4.24 inches, Width: 3.65 inches, Length: 3.57 inches) make it an accessible option for pet owners who need a convenient, space-saving storage solution.

To buy this product, click here.

Under The Weather Pet | Ready Cal For Cats 100cc

The ideal customer for the Under The Weather Pet | Ready Cal for Cats 100cc is any cat owner who is concerned about their feline’s weight and overall health. If your cat struggles with maintaining a healthy weight or lacks essential nutrients, this high calorie supplement can be the perfect addition to their diet. It’s especially beneficial for cats recovering from illness or those who are naturally underweight, providing them with the necessary vitamins, minerals, and omega fatty acids to support their well-being.

Pros:

• High calorie content helps in weight gain for underweight cats.
• Contains 10 vitamins and 7 minerals for enhanced nutritional support.
• Omega fatty acids contribute to healthy skin and coat.
• Easy-to-administer supplement, ideal for cat owners.

Cons:

• May not be suitable for cats with specific dietary restrictions.
• Some cats might require time to adapt to the taste of the supplement.

The Ready Cal for Cats 100cc is designed to deliver a boost in calories, which is essential for cats needing to gain weight or recover from a health setback. With 10 vitamins and 7 minerals, this supplement offers comprehensive nutritional support that assists in maintaining overall health and vitality. Cats benefit from the inclusion of omega fatty acids, known for promoting a shiny coat and healthy skin.

Additionally, the convenience of the Ready Cal for Cats 100cc makes it a go-to solution for cat owners seeking an easy method to enhance their pet’s diet. The compact size and user-friendly design allow for straightforward administration, ensuring your cat receives its daily dose of essential nutrients without hassle. This supplement is manufactured by Under the Weather, a brand known for its commitment to quality and efficacy.

To buy this product, click here.

Petag High Calorie Gel Supplement For Cats

The PetAg High Calorie Gel Supplement for Cats is an ideal purchase for cat owners who have pets needing extra calories. This product is perfect for cats over 8 weeks old that require a nutritional boost due to illness, weight loss, or recovery from surgery. It’s also suitable for active cats with higher energy needs.

Pros:

• Provides extra calories to support energy and weight gain.
• Easy to digest, making it suitable for cats with sensitive stomachs.
• Chicken flavor appeals to most cats, encouraging consumption.

Cons:

• Some cats may not like the texture.
• Not ideal for cats under 8 weeks old.

The PetAg High Calorie Gel Supplement is designed to offer an easy-to-administer solution for boosting your cat’s caloric intake. With its chicken flavor, it can be a delightful treat for your feline friend, ensuring they get the nutrition they need without fuss. The supplement’s digestibility is a key feature, providing a gentle formulation that won’t upset sensitive stomachs. This makes it a great addition to the diet of cats undergoing recovery or those that are simply picky eaters.

Beyond its nutritional value, the compact size of the gel supplement ensures it’s convenient for storage and travel, so you can provide your cat with necessary energy support wherever you go. The product’s dimensions (Height: 6.625 inches, Width: 2.375 inches, Length: 1.5 inches) make it easy to handle and use. Overall, this supplement can be a vital resource in maintaining your cat’s health and vitality, especially during challenging times when they may need a caloric boost.

To buy this product, click here.

2-pack Nutri-cal For Cats High Calorie Dietary Supplement

The 2-Pack Nutri-Cal for Cats High Calorie Dietary Supplement is an excellent choice for cat owners who have pets that are underweight, recovering from illness, or are finicky eaters. This product is ideal for those looking to support their cat’s nutritional needs and boost their overall energy levels. If you have a cat that needs extra calories and nutrients, this supplement is a must-have in your pet care routine.

Pros:

• High-calorie formula provides essential energy for underweight cats.
• Easy-to-administer gel form makes it simple to give to your cat.
• Palatable flavor encourages even picky eaters to consume it.
• Rich in vitamins and nutrients to support overall health.

Cons:

• May not be suitable for cats with specific dietary restrictions.
• The gel consistency might not be preferred by all cats.

The Nutri-Cal for Cats is designed with a high-calorie content which is crucial for cats that are struggling to maintain a healthy weight. This can be particularly beneficial for senior cats or those recovering from surgery or illness, as it provides them with the extra energy they need without the need for large meals. The gel form of this supplement ensures that it can be easily mixed with food or given directly, making it an excellent option for cats who are reluctant to eat solid food.

Another standout feature of the Nutri-Cal is its rich blend of vitamins and nutrients. This ensures that your cat is not just getting additional calories but is also benefiting from a comprehensive nutrient boost. Essential vitamins like A, D, and E are included, which help to improve your cat’s coat, immune system, and overall health. The palatable flavor is another advantage, as it encourages even the most finicky eaters to accept the supplement willingly, making it easier for pet owners to ensure their cats get the nutrition they need.

To buy this product, click here.

Tiki Cat Silver Comfort Mousse

The Tiki Cat Silver Comfort Mousse is an ideal choice for senior cats aged 11 and above. This high-calorie wet cat food is specifically formulated to meet the nutritional needs of older cats who might need extra calories and nutrients. It’s perfect for cat owners who want to ensure their senior cats maintain a healthy weight and receive adequate nutrition as they age.

Pros:

• High-calorie formulation supports weight maintenance for older cats.
• Moisture-rich texture aids in hydration and is gentle on older cats’ teeth.
• Made with real chicken and chicken liver for a delicious taste cats love.

Cons:

• Some cats may have allergies to certain ingredients.
• Price might be higher compared to standard cat foods.

The Tiki Cat Silver Comfort Mousse comes in a convenient 5.6 oz pouch, offering 20 individual servings that are easy to serve and store. This is particularly beneficial for pet owners with busy lifestyles, allowing them to quickly provide a nutritious meal without the hassle of measuring portions. The formulation prioritizes quality ingredients, ensuring that senior cats get the best possible nutrition.

One of the standout features is the moisture-rich texture which not only aids in hydration but also makes it easier for older cats to consume, especially those who might have dental issues. Furthermore, the inclusion of real chicken and chicken liver ensures a palatable flavor that encourages even the pickiest eaters to enjoy their meals. This makes it an excellent choice for maintaining the health and happiness of your beloved senior feline companions.

To buy this product, click here.

Bovine Colostrum Nutritional Gel For Dog & Cat

The Bovine Colostrum Nutritional Gel by YoYoBay is perfect for pet owners who are looking to boost their dog’s or cat’s appetite, enhance their immune system, or aid in weight gain. It’s particularly beneficial for senior pets that require additional nutritional support or for animals recovering from illness. If your pet struggles with maintaining weight or needs extra calories for energy, this high-calorie supplement is an ideal choice.

Pros:

• Supports Appetite for both dogs and cats, making it easier for picky eaters to consume food.
• Provides Immune Support, helping to keep pets healthy and resilient against diseases.
• Acts as a Weight Gainer for pets needing to build or maintain body mass.
• Specifically designed for Senior Dogs and Cats, addressing age-related nutritional needs.

Cons:

• Some pets may experience digestive issues initially due to the rich nature of the gel.
• Cost might be a concern for budget-conscious pet owners.
• Requires consistent use to see significant benefits, which may not be ideal for all pet owners.

The Bovine Colostrum Nutritional Gel is crafted to deliver high-calorie nutrition, making it excellent for pets who require extra energy and nourishment. This supplement is packed with vital nutrients that encourage a healthy appetite, making it easier for pets to consume necessary food portions. With the added benefit of immune support, this gel helps fortify your pet’s natural defenses, protecting them from various ailments and ensuring they stay robust and healthy.

Another standout feature of this product is its tailored formulation for senior pets. As animals age, their nutritional needs change, and this gel provides essential vitamins and minerals to support their health. Additionally, for pets who have difficulty gaining weight, the gel serves as an effective weight gainer, helping them achieve a healthy body condition. Whether your pet is recovering from an illness or simply needs an extra nutritional boost, this gel from YoYoBay offers comprehensive benefits.

To buy this product, click here.

Petag High Calorie Gel Supplement For Cats

The PetAg High Calorie Gel Supplement for Cats is an ideal choice for cat owners looking to provide their feline friends with a nutritious boost. This product is perfect for cats aged 8 weeks and older who may need extra calories due to high activity levels, recovery from illness, or weight gain needs. Pet owners who want an easy-to-digest supplement with a delicious chicken flavor will find this product particularly beneficial.

Pros:

• Provides extra calories for cats needing a nutritional boost.
• Easy to digest, ensuring no upset stomachs.
• Chicken flavor that appeals to picky eaters.
• Comes in a convenient pack of 2, ensuring a longer supply.

Cons:

• May not be suitable for cats with chicken allergies.
• Some cats may not prefer the gel texture.

One of the standout features of the PetAg High Calorie Gel Supplement is its easy-to-digest formula, which makes it suitable for even the most sensitive stomachs. This is crucial for cats recovering from illness or those with digestive issues, ensuring they can still receive the nutritional benefits without any adverse effects. The chicken flavor is not only appetizing but also encourages cats to consume the supplement willingly, reducing the struggle that often comes with administering dietary supplements.

Additionally, the supplement’s compact packaging of 3.5 oz tubes in a pack of 2 provides a practical solution for ongoing dietary support. This ensures pet owners have a ready supply for consistent supplementation, which can be particularly beneficial for maintaining the health and weight of active or underweight cats. The lightweight design of the tube also makes it easy to handle and store, adding to the convenience for pet owners.

To buy this product, click here.

Purina One High Protein, Healthy Plus Ideal With Chicken Dry Cat Food Control Formula

The Purina ONE High Protein, Healthy Plus Ideal With Chicken Dry Cat Food Control Formula is perfect for cat owners who are looking for a nutritious and protein-rich diet for their feline companions. This product is especially ideal for those who prioritize their pet’s health and well-being and want to ensure that their cat is getting the best possible nutrition.

Pros:

• High Protein Content to support strong muscles
• Essential Nutrients for overall health
• Trusted Brand – Purina ONE, manufactured by Nestle Purina Pet
• Formulated to help maintain a healthy weight

Cons:

• Limited Flavor Options – primarily chicken
• May not be suitable for cats with specific dietary restrictions

The Purina ONE High Protein, Healthy Plus Ideal With Chicken Dry Cat Food offers a meticulously crafted formula that prioritizes your cat’s health. With its high protein content, this cat food is designed to help build and maintain strong muscles, which is crucial for active and playful cats. The inclusion of essential nutrients ensures that your cat receives a well-balanced diet, supporting their overall health and vitality.

Additionally, this cat food is formulated to assist in maintaining a healthy weight, making it a great choice for cats that are prone to weight gain. The trusted Purina ONE brand, backed by Nestle Purina Pet, offers peace of mind to pet owners who seek reliable and effective nutrition solutions. Although the flavor options are limited, the focus on quality ingredients makes this product a standout choice for conscientious cat owners.

To buy this product, click here.

Frequently Asked Questions

What Are High Calorie Cat Foods?

High calorie cat foods are specially formulated to help cats gain weight. They contain extra calories, vitamins, and minerals. These foods are ideal for underweight cats or those with high energy needs.

How Do Appetite Stimulants Work For Cats?

Appetite stimulants increase a cat’s desire to eat. They can be helpful for cats with reduced appetites. These stimulants often contain flavors cats find appealing, encouraging them to consume more food.

Are High Calorie Supplements Safe For Older Cats?

Yes, high calorie supplements are generally safe for older cats. They provide needed nutrients and energy. Always consult your veterinarian before introducing new supplements to ensure they suit your cat’s health needs.

Can High Calorie Supplements Boost Cat Energy?

High calorie supplements can boost a cat’s energy levels. They contain essential nutrients and fatty acids that support overall vitality. These supplements are especially beneficial for active or recovering cats.

Why Choose Chicken Flavor For Cat Supplements?

Chicken flavor is popular among cats and enhances palatability. Cats are naturally attracted to chicken, making supplements more appealing. This flavor ensures cats consume the necessary nutrients willingly.

Conclusion

Choosing the right high-calorie cat food can make a big difference in your cat’s health. Each product mentioned offers unique benefits, from appetite stimulation to added vitamins and minerals. Under the weather ready cal powder is perfect for boosting energy and weight gain.

Petag high calorie gel is easy to digest and suitable for cats over eight weeks. Nutri-cal for cats offers a convenient tube for dietary supplementation. Tiki cat silver comfort mousse caters to the needs of senior cats. Bovine colostrum nutritional gel supports both appetite and immune function.

Finally, purina one high protein formula provides balanced nutrition for your feline friend. Always consult your veterinarian before introducing new supplements. This ensures the best results and safety for your pet. Remember, a well-nourished cat is a happy cat. Invest in your cat’s health with these quality high-calorie options.

Your furry friend will thank you with purrs and love.