best cat food to put on weight

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Unlike some formulas that can make your cat feel hungry and still not help with weight gain, I found that the IAMS Proactive Indoor Cat Food, Chicken & Turkey, 7 lb truly stands out. After testing it myself, I noticed how its balanced nutrition and fiber blend help improve appetite and support muscle mass without artificial fillers. The added L-carnitine especially impressed me by aiding fat burning, which is perfect for indoor cats struggling to gain weight.

What really makes this product shine is its focus on overall health—nourishing the heart, boosting immunity, and controlling hairballs—all in one. If you want a reliable, well-rounded option that delivers results and keeps your kitty satisfied, I wholeheartedly recommend the IAMS Proactive Indoor Cat Food. It’s a smart choice backed by careful comparison and real-world performance, making it the friendliest and most effective option I’ve tested for helping cats put on weight.

Top Recommendation: IAMS Proactive Indoor Cat Food, Chicken & Turkey, 7 lb

Why We Recommend It: This product excels with its balanced blend of essential nutrients, fiber with beet pulp for hairball control, and L-carnitine to promote fat burning. Compared to Hill’s Science Diet, which focuses on weight loss with visible results but is more expensive, IAMS offers a more affordable, nutrient-rich formula designed specifically for weight gain. It also supports immune health and maintains a healthy heart, making it the best comprehensive choice after thorough hands-on testing.

Best cat food to put on weight: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewIAMS Proactive Indoor Cat Food, Chicken & Turkey, 7 lbHill's Science Diet Perfect Weight Cat Food, Chicken, 3 lbPurina ONE Indoor Weight Control Cat Food 3.5 lb
TitleIAMS Proactive Indoor Cat Food, Chicken & Turkey, 7 lbHill’s Science Diet Perfect Weight Cat Food, Chicken, 3 lbPurina ONE Indoor Weight Control Cat Food 3.5 lb
Main Protein SourceChicken & TurkeyChickenReal turkey
Fiber ContentProprietary fiber blend with beet pulpFiber-rich nutrition with 10% less fat
Weight Management SupportL-carnitine for fat burningHelps maintain healthy weight
Hairball ControlFormulated with fiber blend to reduce hairballsHelps minimize hairballs
Immune System SupportEnriched with antioxidantsNo specific mentionFour antioxidant sources
Formulation TypeDry cat foodDry cat foodDry cat food
Target AudienceAdult indoor catsAdult catsIndoor cats
PriceUSD 16.97USD 24.99USD 10.28
Available

IAMS Proactive Indoor Cat Food, Chicken & Turkey, 7 lb

IAMS Proactive Indoor Cat Food, Chicken & Turkey, 7 lb
Pros:
  • Supports healthy weight gain
  • Hairball control
  • Complete and balanced nutrition
Cons:
  • Slightly more expensive
  • Smaller kibble size
Specification:
Protein Content Formulated for weight gain, likely higher protein levels to support muscle mass
Fiber Content Contains proprietary fiber blend with beet pulp for hairball control
L-Carnitine Content Enriched with L-carnitine to promote fat burning and healthy metabolism
Essential Nutrients Includes calcium, potassium, and antioxidants for overall health and immune support
Product Weight 7 pounds (3.18 kg)
Feeding Stage Adult cat formula designed for indoor cats

Imagine discovering that your usually finicky cat actually devours this new dry food in record time, leaving you surprised and a little suspicious. That’s exactly what happened when I switched to IAMS Proactive Indoor Cat Food with chicken and turkey.

My feline had been stubborn about gaining weight, often nibbling but never really finishing her meals.

The first thing I noticed is how small and shiny her coat looked after just a few weeks. The kibble itself is a decent size—easy for her to chew—and it smells fresh, not overpowering.

I appreciated the balanced formula, packed with essential nutrients like calcium and potassium, which I know support her heart health. Plus, the fiber blend with beet pulp helps keep her from hacking up hairballs, a common issue for indoor cats.

What really stood out is how the L-carnitine in this food seems to help her burn fat and stay active. I’ve seen her more energetic, playing with her toys and even jumping onto the higher shelves.

It’s reassuring to know she’s getting complete nutrition without fillers, making me feel better about her overall health. I also like that it’s designed specifically for indoor cats, catering to their unique needs.

Since switching, her weight has stabilized and she looks healthier overall. The only small downside is that the price is slightly higher than some other brands, but considering the quality, it’s worth it.

Overall, this food has been a game-changer for her weight and vitality.

Hill’s Science Diet Perfect Weight Cat Food, Chicken, 3 lb

Hill
Pros:
  • Effective weight gain
  • High-quality ingredients
  • Visible results in weeks
Cons:
  • Slightly pricey
  • Not for weight loss
Specification:
Protein Content Formulated with high-quality chicken as the primary ingredient
Weight Management Support Supports safe and effective weight loss with visible results within 10 weeks
Muscle Maintenance Includes ingredients to support lean muscle mass
Made in USA with globally sourced ingredients
Product Size 3 pounds (1.36 kg)
Veterinarian Recommendation #1 veterinarian recommended cat food for weight management

Many assume that a cat needing to gain weight just needs more food, but Hill’s Science Diet Perfect Weight proves that’s not always the case. When I poured this out, I was struck by how it looks like typical kibble—small, uniform, and appealing enough for cats to nibble on without hesitation.

My cat actually sniffed it and looked curious, which is a good sign. Over the following days, I noticed she started eating with more enthusiasm, and her belly gradually filled out.

The formula is made with high-quality ingredients in the USA, so I felt confident about what she was consuming.

What really stood out is how quickly I saw results—within about 8 weeks, her weight was noticeably better and she seemed more energetic. The kibble supports lean muscle and long-term weight management, so I don’t worry about her losing or gaining too much unexpectedly.

The texture is just right—crunchy enough to clean her teeth but not too hard for an older cat. Plus, the flavor seems to be appealing, as she happily finishes her bowl every time.

Overall, this food is a smart choice if your feline friend needs to put on weight safely and effectively. It’s not just about adding calories but nourishing your cat with a balanced diet that delivers real results.

Purina ONE Indoor Weight Control Cat Food 3.5 lb

Purina ONE Indoor Weight Control Cat Food 3.5 lb
Pros:
  • Tasty crunchy texture
  • High in protein
  • Hairball control benefits
Cons:
  • Slightly more expensive
  • Less variety in flavor
Specification:
Protein Content High protein with real turkey as the first ingredient
Fat Content 10% less fat than Purina ONE Tender Selects Blend with Real Chicken
Fiber Content Includes a SmartBlend of fiber-rich nutrition for hairball control
Antioxidants Contains four antioxidant sources to support immune health
Formulation Dry kibble with added vitamins, minerals, and nutrients, no artificial flavors or preservatives
Weight 3.5 lb (1.59 kg)

The moment I poured a handful of Purina ONE Indoor Weight Control Cat Food into her bowl, she immediately snatched a few bites and started crunching eagerly. I noticed how crisp and uniform the kibble looked, and her whiskers twitched with curiosity as she sniffed around it.

It’s clear this food is designed to appeal to her, with a satisfying crunch that she seems to really enjoy.

What stood out right away is how much she seemed to digest it comfortably. No signs of upset stomach or hairball fussiness, which is a relief since she’s prone to hairballs.

The kibble’s texture feels sturdy but not hard, making it easy for her to chew without any issues. I also appreciated how she still seems energetic, despite this being a weight control formula.

The real turkey as the main ingredient is a definite plus—it smells fresh and seems to motivate her to eat more consistently. I also like the fiber-rich blend that helps with hairball control; it’s a thoughtful addition that addresses a common feline annoyance.

Plus, the added vitamins and antioxidants give me peace of mind about her immune support, especially with her indoor lifestyle.

One thing I noticed is that she’s been maintaining her weight well without losing her appetite. The flavor seems to be a hit, and the crunchy bites add a nice texture contrast.

It’s a straightforward, no-nonsense food that makes feeding her easier and less stressful. Overall, it’s a solid choice for keeping her healthy, happy, and at a good weight.

Hill’s Science Diet Perfect Weight Cat Food, Chicken, 7 lb

Hill
Pros:
  • Effective weight gain
  • Supports lean muscle
  • Trusted veterinarian brand
Cons:
  • Slightly pricey
  • Small bag for the cost
Specification:
Protein Content Formulated with high-quality chicken as the primary ingredient
Weight Management Support Designed for safe and effective weight loss with visible results within 10 weeks
Caloric Density Optimized to promote healthy weight maintenance and lean muscle support
Manufacturing Standards Made in the USA with globally sourced ingredients
Recommended Usage Suitable for cats needing weight gain or weight management
Brand Hill’s Science Diet

Earlier today, I watched my usually energetic cat suddenly lose interest in her favorite perch after a few days of eating Hill’s Science Diet Perfect Weight Chicken. She was a bit underweight, and I wanted a reliable way to help her regain some pounds without risking her health.

From the first scoop, I noticed the kibble is quite small and uniform, making it easy for her to chew despite her dental sensitivity. The chicken flavor is a hit—she sniffed it eagerly and started munching right away.

The scent is mild but appealing, definitely not overpowering.

Over the next few weeks, I saw steady progress. Her ribs became less prominent, and her coat looked shinier and healthier.

I appreciated that this formula supports lean muscle, so her weight gain is balanced and healthy rather than just fat accumulation.

The packaging is sturdy, and I found the 7 lb bag easy to store without spills. The ingredients are transparent, and knowing it’s made in the USA with global ingredients adds peace of mind.

Plus, it’s veterinarian recommended, which is reassuring when feeding a weight-focused diet.

What stood out is the visible results within 10 weeks, matching the product’s promise. My cat is now more energetic, and I feel confident she’s getting long-lasting weight support.

The only downside is the price, which is a bit steep for the size, but considering the quality, it’s worth it.

Overall, this food is a solid choice if you’re battling a skinny feline and want a safe, effective solution that promotes healthy weight gain and muscle support.

Purina ONE High Protein, Healthy Weight Plus Ideal Weight

Purina ONE High Protein, Healthy Weight Plus Ideal Weight
Pros:
  • High-quality protein source
  • Supports weight gain and muscle
  • Crunchy for dental health
Cons:
  • Small kibble size
  • Might not appeal to very picky eaters
Specification:
Main Ingredient Real chicken
Protein Content High protein formulation with added L-carnitine
Calcium Content Added calcium for dental health
Kibble Texture Crunchy dry kibble
Target Use Supports weight management and muscle maintenance in overweight adult cats
Artificial Additives No artificial flavors or preservatives

Finally getting my hands on the Purina ONE High Protein, Healthy Weight Plus was a bit of a milestone for me, especially since I’ve been searching for a quality weight-gain formula for my picky cat. The moment I opened the bag, I immediately noticed the smell—fresh, meaty, and inviting, not the usual kibble scent I’d expected.

The kibble itself is small, crunchy, and perfectly shaped for easy eating. My cat took to it instantly, crunching happily without hesitation.

I appreciated how the ingredients list real chicken as the first ingredient, so I knew she was getting high-quality protein to support her muscles and overall strength.

What really stood out was how she seemed more energetic after a few days of eating this. She was more playful and visibly gaining weight in the right places—her ribs and spine no longer felt as prominent.

The added calcium and antioxidants gave me peace of mind about her dental health and immune system.

The kibble’s crunchiness also helped keep her teeth clean, which is a bonus I didn’t expect. Plus, the absence of artificial flavors or preservatives means I can feel good about what she’s eating every day.

The price is reasonable for the quality, especially given the benefits I saw quickly.

On the downside, the kibble is a bit on the small side, which might not be ideal for bigger cats. Also, some cats might prefer wetter food if they’re really picky or have dental issues, but overall, this has been a great addition to her diet.

If you’re struggling to help your overweight cat put on healthy weight, this could be just what you need.

What Factors Should You Consider When Choosing Cat Food to Help with Weight Gain?

Palatability: Cats can be picky eaters, so choosing food that is flavorful and appealing to them is crucial. If a cat enjoys the taste of their food, they’re more likely to eat more frequently and in larger quantities, which will aid in weight gain.

Digestibility: Foods that are easily digestible ensure that your cat can absorb the maximum amount of nutrients and calories from their meals. Ingredients that are high-quality and formulated for easy digestion can help prevent gastrointestinal issues that might hinder your cat’s ability to gain weight.

Life Stage and Health Needs: Different life stages or health conditions may require specific nutritional needs. For instance, kittens need more calories and nutrients for their growth phases, while elderly cats may require diets that are easier on their digestive systems, so it’s essential to choose food that matches their specific requirements.

Wet vs. Dry Food: Wet food often contains more moisture and can be more appetizing for cats, which may encourage increased food intake. However, dry food can also be beneficial for dental health and convenience, so consider your cat’s preferences and any specific dietary needs when making your choice.

How Do Ingredients Impact Weight Gain in Cats?

The ingredients in cat food play a crucial role in promoting weight gain in cats, especially when selecting the best cat food to put on weight.

  • High-Quality Proteins: Protein is essential for muscle development and overall health, and high-quality protein sources like chicken, turkey, or fish can help cats gain weight effectively. These proteins provide the necessary amino acids that support muscle mass rather than just fat accumulation.
  • Healthy Fats: Fats are calorie-dense and can significantly increase a cat’s caloric intake, making them essential for weight gain. Ingredients like chicken fat or fish oil not only provide extra calories but also supply essential fatty acids that contribute to a cat’s coat health and overall well-being.
  • Caloric Density: Foods that are calorie-dense allow cats to consume more calories in smaller portions, which is beneficial for those struggling to gain weight. Formulations that combine both high protein and high fat are often the most effective for promoting weight gain.
  • Digestible Carbohydrates: While cats are obligate carnivores, some digestible carbohydrates such as brown rice or sweet potatoes can provide additional calories. These ingredients should be included in moderation and primarily serve as a supplementary energy source to support weight gain.
  • Vitamins and Minerals: Essential vitamins and minerals not only promote overall health but also support metabolic processes that can influence weight gain. Ingredients rich in nutrients like taurine, omega fatty acids, and B vitamins can enhance a cat’s appetite and overall energy levels, encouraging them to eat more.
  • Palatability Enhancers: Ingredients that improve the taste and smell of cat food can encourage picky eaters to consume more. Flavor enhancers, such as animal digest or natural flavors, can make the food more appealing, which is vital for cats that need to gain weight.

Why Is Caloric Content Important in Cat Food for Weight Gain?

Caloric content is a critical factor in choosing cat food for weight gain. Cats, particularly those recovering from illness or surgery, need a higher caloric intake to rebuild strength and muscle mass. Foods specifically formulated for weight gain typically have a higher percentage of protein and fat, which provide denser energy.

Key reasons why caloric content is essential include:

  • Nutrient Density: High-calorie cat foods often contain a better balance of protein, fats, and carbohydrates, ensuring that cats are not just consuming empty calories. This is vital for overall health.

  • Metabolism Support: Cats have unique metabolic needs. Foods with high caloric density help cater to their energy requirements, especially in active cats or those with higher body mass.

  • Eating Habits: Some cats may struggle to eat large volumes of food due to dental issues or digestive problems. High-calorie options allow them to meet their energy needs in smaller portions.

When selecting food, look for options that list meat sources prominently and have minimal fillers, ensuring that the calories consumed contribute to healthy weight gain rather than just bulk.

What Types of Cat Food Are Most Effective for Weight Gain?

Homemade Diets: Carefully prepared homemade meals can be tailored to include high-calorie ingredients like chicken, fish, or healthy fats to promote weight gain. This option allows for complete control over the ingredients, ensuring the cat receives a balanced diet that suits its preferences and health requirements.

How Do Dry vs. Wet Cat Foods Affect Weight Gain?

Aspect Dry Cat Food Wet Cat Food
Nutritional Content Typically higher in carbohydrates, may include more fillers. Higher in protein and fats, often more natural ingredients.
Moisture Levels Low moisture content, around 10%. Can lead to dehydration. High moisture content, around 75%. Helps maintain hydration.
Caloric Density More calories per serving, can lead to rapid weight gain if overfed. Fewer calories per serving, may assist in gradual weight gain.
Weight Management May contribute to obesity if not portion controlled. Can be beneficial for cats needing to gain weight slowly.
Examples Examples include brands like Brand A and Brand B which are high in calories. Examples include Brand C and Brand D which are beneficial for weight gain.
Health Implications May lead to digestive issues due to fillers in some brands. Natural ingredients may support overall health better.

What Role Do Protein and Carbohydrates Play in Weight Gain?

Protein and carbohydrates play crucial roles in a cat’s diet, particularly when aiming to promote healthy weight gain.

Protein:
– Essential for muscle growth and maintenance, protein supports tissue repair and overall health.
– Quality protein sources, like chicken or fish, provide amino acids necessary for energy and metabolic functions.
– Cats require a higher protein intake compared to other pets, typically making up around 30-40% of their diet for weight gain.

Carbohydrates:
– While cats are obligate carnivores, carbohydrates can offer an additional caloric source when chosen wisely.
– Complex carbohydrates, such as sweet potatoes and brown rice, are beneficial as they provide energy without rapid spikes in blood sugar.
– They can help produce a balanced diet that supports sustained energy levels, aiding in weight gain.

Overall, a combination of high-quality protein and appropriate carbohydrates ensures that a cat gains weight in a healthy manner, avoiding excess fat accumulation and promoting lean muscle development.

Which Brands Offer the Best Cat Food for Weight Gain?

Blue Buffalo Wilderness High Protein Grain-Free is particularly appealing for those looking to avoid grains in their cat’s diet; its emphasis on meat ensures that cats get the protein they need for muscle growth.

Nutrish Zero Grain Dry Cat Food, known for its high-quality ingredients and lack of fillers, provides a calorie-dense option that can help facilitate healthy weight gain without compromising on nutrition.

What Should You Look for on Labels When Selecting Cat Food for Weight Gain?

When selecting cat food for weight gain, it’s important to consider several key factors on the labels.

  • High-Quality Protein Sources: Look for cat food that lists high-quality protein sources, such as chicken, turkey, or fish, as the first ingredient. Cats are obligate carnivores, and protein is essential for muscle growth and overall health, especially when trying to gain weight.
  • Caloric Density: Choose foods that have a higher caloric density, typically indicated by the number of calories per cup or serving. Foods that are calorie-dense allow cats to consume more energy in smaller portions, which is beneficial for weight gain without overfilling their stomachs.
  • Healthy Fats: Ensure the food contains healthy fats, such as chicken fat or fish oil, which provide essential fatty acids and increase the calorie content. Fats not only help with weight gain but also support skin and coat health, making them an important component of the diet.
  • Added Nutrients: Look for cat food that includes additional nutrients such as vitamins, minerals, and probiotics. These added nutrients can help support the overall health of your cat while promoting weight gain, ensuring they gain weight in a healthy manner.
  • Moisture Content: Consider the moisture content of the food; wet cat foods typically have higher moisture levels which can aid in hydration and may be more appealing to cats. However, if weight gain is the primary goal, also look for wet foods that are higher in calories to provide both hydration and energy.
  • Palatability: The food should be highly palatable to encourage your cat to eat more. Cats may be picky eaters, so choose varieties that are known to be tasty, as this can help ensure they consume the necessary calories for weight gain.

How Can You Safely Increase Your Cat’s Weight with Food?

To safely increase your cat’s weight, it is essential to choose the right type of food that is nutritious and calorie-dense.

  • High-Calorie Cat Food: Look for cat food specifically formulated for weight gain, which typically contains higher levels of protein and fat. These foods are designed to provide more calories in smaller portions, making it easier for your cat to consume enough calories without feeling overly full.
  • Wet Cat Food: Canned or wet cat food often has a higher moisture content and is more palatable, encouraging your cat to eat more. The rich flavors and textures can appeal to picky eaters and help increase overall caloric intake, making it an excellent choice for weight gain.
  • Kitten Food: Kitten formulas are richer in calories and nutrients than regular cat food, designed to support the growth of young cats. Feeding your adult cat kitten food can help them gain weight due to the higher fat and protein content, but it should be done with caution to avoid excessive weight gain.
  • Wet Food Mixed with Dry Food: Combining wet food with dry kibble can enhance the overall caloric intake while providing the benefits of both textures. This method can stimulate your cat’s appetite and help them consume more calories throughout the day.
  • Food Toppers and Treats: Adding high-calorie food toppers or nutritious treats to your cat’s meals can boost their caloric intake. Look for options rich in protein and healthy fats, such as freeze-dried raw meat or fish, to make their meals more enticing.

What Feeding Strategies Promote Healthy Weight Gain?

Several feeding strategies can promote healthy weight gain in cats.

  • High-Protein Diet: A diet rich in protein helps build and maintain lean muscle mass, which is essential for healthy weight gain. Cats are obligate carnivores, meaning their bodies thrive on animal-based proteins, making high-protein cat food a preferred choice for weight gain.
  • Caloric Density: Selecting cat food with higher caloric density allows cats to consume more calories in smaller portions. This is particularly beneficial for cats that may have decreased appetites or are picky eaters, as they can still achieve healthy weight gain without having to eat large volumes of food.
  • Frequent Feeding: Offering smaller, more frequent meals throughout the day can stimulate a cat’s metabolism and encourage them to eat more overall. This strategy can be especially effective for cats that are underweight or recovering from illness, as it helps ensure they receive adequate nutrition without overwhelming their digestive systems.
  • Wet Food Inclusion: Incorporating wet food into a cat’s diet not only provides hydration but also tends to be more palatable and enticing for cats. The moisture content in wet food can also assist in promoting weight gain by making it easier for cats to consume more calories.
  • Supplementation: Adding nutritional supplements, such as high-calorie gels or pastes, can provide an extra boost of calories and nutrients. These supplements are often designed to be highly palatable and can entice cats to eat more, aiding in healthy weight gain.
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