Our Review Process
Our reviews are based on extensive research and, when possible, hands-on testing. Each time you make a purchase through one of our independently-chosen links, we’ll receive a percentage of the proceeds. Read more about how we’re supported here.The best cat food for weight gain isn’t just calorie-dense. It’s bursting with concentrated, species-appropriate nutrition.
It has plenty of protein, animal-sourced fat, and micronutrients to support both healthy muscle tone and overall health and wellbeing. And if your cat is underweight due to a health condition, the right food can promote weight gain.
At A Glance: Best Cat Food For Weight Gain To Buy
Want a quick look at the products reviewed in this article? In the comparison table below, we’ve highlighted some of the most important features of each product. You’ll find more detailed information about each product later in the article.
Wellness CORE Grain-Free Chicken, Turkey & Chicken Liver Formula
- Moisture-rich canned food supports overall health
- Made with highly-digestible animal protein
- High in calories to help your cat gain weight
Open Farm Grass-Fed Beef Rustic Blend Wet Food
- Made with a single source of premium animal protein
- Formulated with 100% human-grade, traceable ingredients
- Contains the moisture your cat needs for hydration
Instinct Original Grain-Free Pate Real Chicken Recipe Wet Canned Cat Food
- Made with 95% chicken, turkey, and chicken liver
- Highly palatable pate texture is easy to eat
- Rich in the moisture and protein cats need
Hill’s Prescription Diet a/d Urgent Care with Chicken Canned Dog & Cat Food
- Specially formulated for cats in desperate need of nutrition
- Increased potassium
- Calorie-dense and made with highly-digestible animal protein
Smalls Human Grade Fresh Other Bird
- Zero carbohydrate content
- Calorie-dense to promote weight gain
- Free from artificial additives and animal by-products
Go! Sensitivity + Shine Grain-Free Duck Pate Recipe Canned Cat Food
- Made with a nourishing concentration of animal protein
- Calorie-dense to help cats put on weight
- Soft pate texture is easy for senior cats to eat
Nature’s Logic Feline Chicken Feast Grain-Free Canned Cat Food
- Contains over 90% species-appropriate animal protein
- Includes organ and muscle meat
- Calorically dense to help cats gain weight
We recommend Wellness CORE Grain-Free Chicken, Turkey & Chicken Liver Formula as the best cat food for weight gain. In addition to being one of the highest-calorie canned foods you can buy, this food is rich in animal-sourced protein for healthy muscle tone and has a silky-soft texture that’s easy on senior cats’ teeth.
We’ll talk more about this Wellness CORE recipe and our other top 6 recommendations later. For now, let’s discuss the qualities of the best cat food for weight gain.
What Is The Best Cat Food For Weight Gain?
Chiefly, the best cat food for weight gain is one that helps to address the root of your cat’s weight problem.
Again, your cat’s unique situation dictates their dietary needs.
Generally speaking, an abnormally low weight is the result of either a poor appetite, mouth problems, or a condition that’s preventing the cat from maintaining a healthy weight. The latter category includes intestinal worms or a thyroid condition like hyperthyroidism.
Also Read: Best Cat Dewormer – Top 5 OTC Cat Dewormers
In most cases, this means that the best cat foods for weight gain provide a combination of palatability and calorie density.
Remember that senior cats need high-quality protein to prevent muscle wasting.
Senior cats, with their tendency to lose muscle mass and become “skinny old cats”, are usually the first group to require food for weight gain. It was once recommended that senior cats eat low-protein diets due to a possible connection between excessive protein and the kidney failure experienced by so many senior cats.
More current research, however, indicates that a diet rich in high-quality animal protein can help prevent sarcopenia of aging – the muscle wasting associated with old age. Cats are still obligate carnivores, so animal-based protein is an essential part of your cat’s diet, regardless of his weight.
Click here for a list of the best cat foods for senior cats.
If your cat has a poor appetite, choose foods and supplements that help to rev up their desire to eat.
It’s terrifying to watch your cat refuse meal after meal. Because it’s so important to ensure that your cat continues to take in sustenance, you’ll need to think creatively to encourage your cat to eat.
Here are a few foods, food toppers, and supplements that have a history of encouraging picky cats to eat.
- Bonito flakes
- Bone broth
- Duck fat
- Unseasoned chicken, turkey, or beef baby food
- Chunks of raw or cooked unseasoned meat
- Canned sardines packed in water
- Canned tuna packed in water
The following are calorie-dense diet supplements that help your cat take in calories without spending much time at the food bowl:
- Egg yolks
- Purina Fortiflora Feline Nutritional Supplement
- Wysong PDG Canine/Feline Food Supplement
- Tomlyn Nutri-Cal For Cats
Click Here to Read Our Guide on The Best Probiotics for Cats
Don’t think that because it’s calorie-dense, dry cat food is necessarily the best cat food for weight gain in adult cats.
Although dry cat food is highly palatable, calorie-dense, and easy to feed, it’s usually not the best choice for weight gain.
For one, dry cat food doesn’t offer the moisture your cat requires to stay healthy and hydrated.
Secondly, dry cat food isn’t ideal for seniors and other cats with poor dental health. If your cat has lost weight due to oral pain or other dental issues, dry kibble will only exacerbate the problem.
And third, compared to wet food, dry food is more likely to contain potentially lower-quality protein sources like pea protein and corn gluten meal. These are not good protein choices for older cats, who require ultra-digestible protein to maintain kidney health and support healthy muscle mass.
Also Read: Top 10 Best Healthiest Canned, Soft & Wet Cat Food
All this said, if your cat refuses to eat anything else, by all means feed them dry food.
In addition to performing our own qualitative analysis of the brands reviewed here, we submitted samples for analysis at an ISO 17025 certified food testing and analysis lab.
We bought the products at full retail price, and the entire testing process was funded by All About Cats without direct input or influence from the companies involved.
Analytical testing in a food chemistry lab gives us the exact macronutrient and
micronutrient content of each recipe. The tests also look at microbial content, yeast, mold, and heavy metals, helping you ensure that you’re only putting the best in your cat’s bowl.
To access the lab reports for each food reviewed here, click the “view lab report” link in the product review.
Top 7 Best Cat Foods For Weight Gain
#1 Overall Best: Wellness CORE Grain-Free Chicken, Turkey & Chicken Liver Formula Canned Cat Food Review
Read Our Full Brand Review View Lab Report
Each 5.5-ounce can contains 213 calories.
First 5 Ingredients: Chicken, Turkey, Chicken Broth, Chicken Liver, Chicken Meal
Our top overall pick for the best cat food for weight gain is this grain-free chicken, turkey, and chicken liver formula from Wellness. It is a high-calorie cat food with a smooth pâté texture that makes it ideal for senior cats and those with dental issues.
This formula is primarily made from highly digestible and biologically valuable sources of animal protein, including chicken, turkey, and chicken liver. It contains limited added carbohydrates and is rich in omega-3 fatty acids from ground flaxseed and species-appropriate salmon oil.
In addition to its high animal-based protein content and abundance of hydrating moisture, this formula is free from fillers, grains, and artificial additives, which helps boost its digestibility for your cat.
Ingredients:
Chicken, Turkey, Chicken Broth, Chicken Liver, Chicken Meal, Turkey Liver, Dried Ground Potatoes, Natural Flavor, Cranberries, Guar Gum, Ground Flaxseed, Potassium Chloride, Salmon Oil (preserved with Mixed Tocopherols), Choline Chloride, Taurine, Cassia Gum, Xanthan Gum, Dried Kelp, Chicory Root Extract, Yucca Schidigera Extract, Magnesium Sulfate, Iron Proteinate, Zinc Proteinate, Thiamine Mononitrate, Vitamin E Supplement, Copper Proteinate, Manganese Proteinate, Sodium Selenite, Niacin, d-Calcium Pantothenate, Pyridoxine Hydrochloride, Riboflavin Supplement, Vitamin A Supplement, Biotin, Potassium Iodide, Vitamin D3 Supplement, Vitamin B12 Supplement, Folic Acid, Rosemary Extract.
Guaranteed Analysis
Dry Matter Basis
Caloric Weight Basis
What We Liked:
- Moisture-rich canned food supports overall health
- Made with highly-digestible animal protein
- High in calories to help your cat gain weight
- Free from artificial colors, flavors, and preservatives
- Has a soft pâté texture that is ideal for sensitive teeth
What We Didn’t Like:
- Contains some unnecessary plant ingredients
- Fairly expensive compared to other canned foods
#2 Best Ethically-Sourced: Open Farm Grass-Fed Beef Rustic Blend Wet Food
Each 5.5-ounce carton contains 172 calories.
First 5 Ingredients: Humanely Raised Beef, Beef Bone Broth, Pumpkin, Carrots, Spinach
Formulated with a single source of animal protein and made with 100% human-grade, easily traceable ingredients, this beef stew from Open Farm is our pick for the best ethically-sourced cat food for weight gain. This wet food formula comes packaged in a cardboard carton rather than a can, making it easy for you to close the package if you don’t use all the food for one meal.
This beef recipe wet food is supplemented with a blend of functional ingredients like non-GMO cranberries for urinary support and superfoods like dandelion greens, spinach, and carrots that provide natural sources for key nutrients.
We appreciate that this recipe is made with a single source of high-quality animal protein, but we wouldn’t mind seeing other animal-based ingredients. Organ meats, for example, would be a nutritious addition to this formula, and we’d prefer to see an animal-based fat in place of the sunflower oil or coconut oil.
While this formula does contain a significant number of plant ingredients, the dry matter carbohydrate content is only around 11%. And we generally prefer to avoid beans and legumes like lentils and chickpeas in cat food.
Ingredients:
Humanely Raised Beef, Beef Bone Broth, Pumpkin, Carrots, Spinach, Red Lentils, Agar Agar, Non-GMO Cranberries, Garbanzo Beans (Chickpeas), Chicory Root, Sunflower Oil, Coconut Oil (preserved with mixed tocopherols), Salt, Vitamin A Supplement, Vitamin D3 Supplement, Vitamin E Supplement, D-Calcium Pantothenate, Thiamine Mononitrate, Riboflavin Supplement, Biotin, Folic Acid, Vitamin B12 Supplement, Zinc Amino Acid Chelate, Iron Amino Acid Chelate, Copper Amino Acid Chelate, Manganese Amino Acid Chelate, Sodium Selenite, Dried Kelp, Potassium Chloride, Dandelion Greens, Choline Chloride, Taurine, Turmeric.
Guaranteed Analysis
Dry Matter Basis
Caloric Weight Basis
What We Liked:
- Made with a single source of premium animal protein
- Formulated with 100% human-grade, traceable ingredients
- Contains the moisture your cat needs for hydration
- No fillers, by-products, or artificial additives
What We Didn’t Like:
- Contains a significant number of plant-based ingredients
- Fairly expensive compared to the average cat food
#3 Runner-Up: Instinct Original Grain-Free Pate Real Chicken Recipe Wet Canned Cat Food Review
Read Our Full Brand Review View Lab Report
Each 5.5-ounce can contains 193 calories.
First 5 Ingredients: Chicken, Turkey, Chicken Liver, Chicken Broth, Ground Flaxseed
Packed with protein from highly digestible animal sources, this pâté-style canned food is also very palatable, with its soft pate texture and high moisture content.
This canned food formula from Instinct features 95% chicken, turkey, and chicken liver, with the remaining 5% from fruits, vegetables, and nutritional supplements. This makes it a primarily meat-based formula with limited carbohydrate content and no artificial additives.
In addition to being calorie-dense and packed with animal protein, this formula offers balanced nutrition with a hint of omega-3 fatty acids from menhaden fish oil to support your cat’s eyes, brain, skin, and coat.
Ingredients:
Chicken, Turkey, Chicken Liver, Chicken Broth, Ground Flaxseed, Montmorillonite Clay, Egg Product, Peas, Carrots, Potassium Chloride, Salt, Minerals (Iron Proteinate, Zinc Proteinate, Copper Proteinate, Manganese Proteinate, Sodium Selenite, Potassium Iodide), Choline Chloride, Vitamins (Vitamin E Supplement, Thiamine Mononitrate, Niacin Supplement, D-Calcium Pantothenate, Pyridoxine Hydrochloride, Riboflavin Supplement, Vitamin A Supplement, Biotin, Vitamin D3 Supplement, Vitamin B12 Supplement, Folic Acid), Taurine, L-Ascorbyl-2-Polyphosphate, Menhaden Fish Oil (Preserved With Mixed Tocopherols), Artichokes, Cranberries, Pumpkin, Tomato, Blueberries, Broccoli, Cabbage, Kale, Parsley.
Guaranteed Analysis
Dry Matter Basis
Caloric Weight Basis
What We Liked:
- Primarily made from highly digestible animal protein sources
- Relatively low carbohydrate content
- Free from artificial additives and by-products
- Fairly high calorie content to support weight gain
What We Didn’t Like:
- Somewhat more expensive than the market average
- Contains some unnecessary plant ingredients
#4 Best For Senior Cats: Hill’s Prescription Diet a/d Urgent Care with Chicken Canned Dog & Cat Food Review
Each 5.5-ounce can contains 180 calories.
First 5 Ingredients: Water, Turkey Liver, Pork Liver, Chicken, Turkey Heart
This prescription food from Hill’s Pet Nutrition is specially formulated for sick cats and dogs in desperate need of nutritional support. The a/d diet is recommended for cats recovering from serious illnesses, accidents, or surgeries.
At 180 calories per can, this is a relatively calorie-dense food formulated with animal protein sources, which help to support lean muscle mass. It has increased potassium levels to prevent potassium depletion and increased B vitamins to support recovery. To increase its palatability, the food is formulated with plenty of delicious liver.
The pâté texture is creamy-soft for sensitive cats, and it is rich in moisture to support your cat’s hydration and healthy digestion. On the downside, it does contain some corn flour and added flavor.
Ingredients:
Water, Turkey Liver, Pork Liver, Chicken, Turkey Heart, Corn Flour, Pork Protein Isolate, Fish Oil, Calcium Carbonate, Chicken Liver Flavor, Egg Flavor, Sodium Tripolyphosphate, Potassium Chloride, Dicalcium Phosphate, Guar Gum, Taurine, vitamins (Vitamin E Supplement, Thiamine Mononitrate, Niacin Supplement, Ascorbic Acid (source of Vitamin C), Calcium Pantothenate, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Biotin, Riboflavin Supplement, Folic Acid, Vitamin D3 Supplement), Potassium Citrate, Choline Chloride, minerals (Zinc Oxide, Ferrous Sulfate, Manganese Sulfate, Copper Sulfate, Calcium Iodate), Magnesium Oxide, Beta-Carotene.
Guaranteed Analysis
Dry Matter Basis
Caloric Weight Basis
What We Liked:
- Specially formulated for cats in desperate need of nutrition
- Increased levels of dietary potassium
- Calorie-dense and made with highly-digestible animal protein
What We Didn’t Like:
- Only available for purchase with a prescription
- Contains corn flour and some added flavor
#5 Best For Sensitive Stomach: Smalls Human Grade Fresh Other Bird Review
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Each 11.5-ounce package contains 464 calories.
First 5 Ingredients: Turkey Thigh (Skin On), Chicken Liver, Green Beans, Peas, Kale
With 464 calories in each package, this is one of the most calorie-dense foods on the market. Like all Smalls cat foods, the recipe models a “paleolithic diet”, containing just meat, water, binders, and supplements.
The food contains turkey thigh and chicken liver, which means that the food is rich in high-value animal protein. This helps to support healthy lean muscle mass. With such a high concentration of meat, there’s no room left for carbohydrates, making this an ideal food for cats with diabetes or a sensitive stomach.
The texture of the food is a soft pate that’s easy for cats to eat. That being said, there are a notable number of customers who report their cats disliking the flavor.
Ingredients:
Turkey Thigh (Skin On), Chicken Liver, Green Beans, Peas, Kale, Vegetable Oil, Calcium Carbonate, Dicalcium Phosphate, Choline, L-Bitartrate, Salt, Taurine, Magnesium Gluconate, Potassium Chloride, Zinc Gluconate, Ascorbic Acid, Copper Gluconate, Vitamin E Supplement, Manganese Gluconate, Ferrous Gluconate, Niacin, Thiamine Hydrochloride, Vitamin A, Calcium Pantothenate, Riboflavin, Pyridoxine Hydrochloride, Vitamin D3 Supplement, Folic Acid, Selenium, Dried Kelp, Biotin, Vitamin B12.
Guaranteed Analysis
Dry Matter Basis
Caloric Weight Basis
What We Liked:
- Zero added carbohydrate content
- Calorie-dense to promote weight gain
- Free from artificial additives and animal by-products
What We Didn’t Like:
- More expensive than market average
- Notable number of cats seem to dislike the flavor
#6 Budget Pick: Go! Sensitivity + Shine Grain-Free Duck Pate Recipe Canned Cat Food Review
Each 5.5-ounce can contains 206 calories.
First 5 Ingredients: Duck, Duck Broth, Potatoes, Dried Egg Product, Flaxseed
Officially formulated for cats with allergies, this duck-based pâté offers 206 calories in every can and is highly palatable for cats who need to increase their calorie intake.
The recipe begins with fresh duck as the first ingredient, followed by dried egg. Both of these are appetizing and highly-nourishing sources of animal protein and nutrients to support a healthy weight. Duck is also a novel source of protein for many cats, which can further benefit cats that suffer from food intolerance or allergies.
Unfortunately, the recipe also includes potatoes, flaxseed, sweet potatoes, carrots, and apples, all of which aren’t necessary additions to your cat’s diet.
Ingredients:
Duck, duck broth, potatoes, dried egg product, flaxseed, apples, tricalcium phosphate, potassium chloride, salt, minerals (zinc amino acid chelate, iron amino acid chelate, selenium yeast, copper amino acid chelate, manganese amino acid chelate, cobalt amino acid chelate, potassium iodide), canola oil (preserved with mixed tocopherols), xanthan gum, cassia gum, chicory root, vitamins (vitamin E supplement, thiamine mononitrate, vitamin A supplement, riboflavin supplement, biotin, vitamin B12 supplement, vitamin D3 supplement), choline chloride, dried kelp, yucca schidigera extract.
Guaranteed Analysis
Dry Matter Basis
Caloric Weight Basis
What We Liked:
- Made with a nourishing concentration of animal protein
- Calorie-dense to help cats put on weight
- Soft pâté is easy to eat
- Highly appetizing with very positive ratings from customers
What We Didn’t Like:
- Contains some unnecessary plant ingredients
#7 Premium Pick: Nature’s Logic Feline Chicken Feast Grain-Free Canned Cat Food Review
Each 5.5-ounce can contains 230 calories.
First 5 Ingredients: Chicken, Chicken Broth, Chicken Liver, Chicken Heart, Dried Egg Product
As one of the highest-calorie formulas on this list, this Nature’s Logic chicken recipe is a good option for cats who need to gain weight. In addition to being high in animal protein, it contains the moisture your cat needs for proper hydration and it has a highly palatable, soft pâté texture.
While this formula is rich in species-appropriate animal protein and healthy fats, it is a little higher in carbohydrates than we’d like to see. The inclusion of dried fruits and vegetables is fairly significant, but it does help negate the need for synthetic vitamin and mineral supplements.
This recipe is completely free from artificial additives, and it contains a single source of animal protein (chicken). Nature’s Logic canned food also comes in beef, turkey, rabbit, and fish flavors.
Ingredients:
Chicken, Chicken Broth, Chicken Liver, Chicken Heart, Dried Egg Product, Porcine Plasma, Montmorillonite Clay, Herring Oil (Preserved with Mixed Tocopherols), Brewers Dried Yeast, Dried Apple, Dried Apricot, Alfalfa Meal, Dried Artichoke, Dried Blueberry, Dried Broccoli, Dried Carrot, Dried Chicory Root, Dried Cranberry, Dried Kelp, Dried Parsley, Dried Pumpkin, Dried Rosemary, Dried Spinach, Dried Tomato, Egg Shell Meal, Rosemary Extract.
Guaranteed Analysis
Dry Matter Basis
Caloric Weight Basis
What We Liked:
- Contains over 90% species-appropriate animal protein
- Herring oil provides omega-3 fatty acids
- Concentrated source of calories, protein, and essential nutrients
- No artificial additives or synthetic supplements
What We Didn’t Like:
- Very expensive compared to the market average
- Higher than average carb content for a canned food
Before You Choose A Food, You Need To Know Why Your Cat Is Underweight.
Unlike obesity in cats, underweight cats are seldom the result of simply eating the wrong food or getting the wrong amount of exercise.
If your cat is underweight, the problem almost invariably goes much deeper than the food bowl. Although it’s a good idea to choose high-calorie food that will help your cat gain weight, it’s more important to identify the root cause of their weight issue and treat your cat accordingly.
In addition to dietary changes, your veterinarian may recommend medications to address underlying health issues that are contributing to your cat being underweight.
Credit: Purina
If your cat is a 1, 2, 3, or 4 according to this body condition chart, they’re considered too thin and it’s time to intervene.
Reasons Why Your Cat May Be Underweight:
If your cat is in the “too thin” weight class, take them to your veterinarian for a health evaluation. Your vet can help you determine your cat’s ideal weight and how to achieve it.
Some of the most common causes for cats being underweight include:
- Diabetes
- Chronic kidney disease
- Worms or intestinal parasites
- Poor dental health
- Stress
- Inadequate nutrition
The above list is far from complete, and it’s almost impossible to diagnose the cause of your cat’s low weight at home. Your veterinarian will help you determine if any underlying medical problems are the cause of your cat’s weight issues and recommend the best form of treatment to resolve them.
Different root problems demand unique treatment plans. For instance, a diabetic cat needs a low-carbohydrate diet, while a cat with chronic kidney disease requires low levels of phosphorus.
Still searching for the best cat food for weight gain? Click here for an in-depth list of cat food products with nutrition information.
