Does your furry friend seem a little too skinny? You’re not alone. Many cat owners worry when their beloved feline companion isn’t packing on the pounds. It can be tough to figure out why your cat is underweight and even harder to choose the best food to help them get healthier. You want to do the best for your cat, but the sheer number of cat food options out there can be overwhelming.
This is where we come in. We understand your concerns and want to make this process easier for you. We’ll explore the reasons why your cat might need to gain weight and, most importantly, guide you through selecting the right cat food to help them achieve a healthy weight. Get ready to discover the secrets to a chubbier, happier cat!
Top Cat Food To Gain Weight Recommendations
No. 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
- "BOOSTS HEALTHY WEIGHT GAIN Specially formulated to help cats with poor appetites regain essential calories. Whether your feline friend is recovering from illness, dealing with stress, or just needs extra support, this supplement helps prevent weight loss while encouraging healthy weight gain with only 1-2 scoops a day. Shelf life: 24 months from manufacturing date. EXP date printed on back of product label as EXP MM/YY."
- STIMULATES APPETITE: When your cat isn't getting proper nutrition due to reasons such as illness or medical procedures, this nutritional supplement powder will help restore your kitty's appetite to keep them healthy and strong for the years to come.
- ENERGY BOOSTER: Packed with Essential Nutrients, each serving contains 20 calories, 9 essential vitamins, and 6 vital minerals to boost energy, strengthen immunity, and improve overall health. Its carefully crafted formula is designed to support underweight cats, seniors, and kittens alike.
- THE BEST FOR YOUR CAT: Ready Cal for Cats is vet-formulated to provide the essential calories your cat needs daily to gain or maintain a healthy weight. With a savory rotisserie chicken flavor cats love to promote weight gain. Proudly manufactured in the USA without artificial flavors or dyes.
No. 2
Purina ONE High Protein, Healthy Weight Plus Ideal Weight With Chicken Dry Cat Food - 3.5 lb. Bag
- Healthy weight cat kibble helps cats burn fat with a blend of high-quality ingredients, including L-carnitine
- Real chicken is the number 1 ingredient of this Purina ONE high protein cat food for weight control, which supports her strong muscles, including a healthy heart
- Crunchy premium dry cat food kibble and added calcium to support her strong teeth and crunchy kibble for healthy gums, and four antioxidant sources support her strong immune system
- Easily digestible, ideal weight cat food for overweight cats delivers great tasting, deliciously crunchy bites made with no artificial flavors or preservatives
- Purina ONE, a veterinarian-recommended brand, crafts this complete and balanced adult cat food in Purina-owned, U.S. facilities
No. 3
PET CARE Sciences Liquid Cat Weight Gainer 16oz - High Calorie Cat Food Appetite Stimulant - Weight Gain for Cats Appetite Stimulant – High Calorie Supplement for Cats - Salmon Flavor - USA Made
- LIQUID CAT WEIGHT GAINER FOR UNDERWEIGHT CATS — PET CARE Sciences cat weight gain supplement is designed to help cats gain weight safely and steadily. Simply add this high calorie weight gainer for cats to any wet or dry food — works as a weight gain cat food topper that picky cats actually eat. Ideal for cats that need help gaining weight after illness, surgery, or stress. Cat supplements for weight gain have never been easier to use.
- CAT APPETITE STIMULANT TO ENCOURAGE EATING — Formulated as a liquid appetite stimulant for cats who have lost interest in food. Our cat appetite booster blends salmon, pollock, and flaxseed oils to naturally stimulate appetite and encourage eating. Works as an appetite stimulant for senior cats, kittens, and cats recovering from illness. Unlike pill-based appetite stimulant food for cats, this liquid mixes invisibly into any meal.
- HIGH CALORIE CAT SUPPLEMENT IN LIQUID FORM — Each serving delivers concentrated calories through premium oils — functioning as a high calorie cat food supplement, high calorie cat gel, and cat calorie supplement all in one. Far more calorie-dense than high calorie cat treats for weight gain. Add to food as a high calorie supplement for cats or use as a high calorie cat food topper. Salmon flavor cats love. No artificial additives.
- FOR SENIOR CATS, KITTENS & CATS WITH SPECIAL NEEDS — Our liquid cat weight gainer is a trusted choice as high calorie cat food for seniors, high calorie kitten supplement, and a weight gainer for senior cats who struggle to maintain weight. Works as liquid cat food for senior cats who have difficulty chewing, as a kitten weight gainer for underweight young cats, and for cats with hyperthyroidism, CKD, or post-surgery recovery.
- LIQUID FORMULA — MIXES INVISIBLY INTO ANY FOOD — Unlike powders or gel tubes, this high calorie liquid food for cats blends seamlessly into wet food, dry kibble, or broth — making it the easiest cat liquid meal replacement and high calorie wet cat food booster available. Start with a few drops to introduce the salmon flavor, then increase to the recommended amount. Made in the USA. Non-GMO ingredients: Salmon Oil, Pollock Oil, Flaxseed Oil, Olive Oil.
No. 4
Solid Gold NutrientBoost™ Cat Food Toppers for Cats - High Protein Meal Topper & Crunchy Cat Treats for Indoor Cats w/Vitamins, Minerals & Amino Acids for Gut Health & Immune Support - All Ages - 1lb
- High Protein Cat Food Topper – Solid Gold NutrientBoost Cat Meal Topper is a protein-packed cat food additive powered by plasma to support digestive health, gut function & immunity. Use as a dry cat treat or mix with wet food or dry kibble
- Powered by Plasma for Gut Health – With amino acids & protein, the plasma in this Nutrientboost meal topper for cats helps support digestion, nutrient absorption & overall wellness. Great cat snacks for cats with sensitive stomachs or picky eaters
- Supports Daily Energy & Whole-Body Wellness – With high-quality animal protein & essential nutrients, these healthy cat treats help fuel your cat’s daily energy levels, support lean muscles & promote a healthy, active lifestyle in kittens & cats
- Holistic, Simple Ingredients —just holistic ingredients. This grain-free cat topper & kitten treats are made for indoor & outdoor cats, kittens & cats with allergies or sensitive stomachs. Perfect for cat enrichment
- Versatile Meal Topper or Treat – Sprinkle over dry food, mix into wet meals, or serve on its own as a crunchy cat treat. This cat snacks treats healthy option adds mealtime variety & delivers tasty, functional benefits to support your cat’s routine
No. 5
Tiki Cat Silver Comfort Chicken & Chicken Liver Recipe 5.6 oz. (20/.28oz) (20 Sachets)
- Add to Tiki Cat Born Carnivore dry food to attract picky eaters.
- Highly palatable and aromatic chicken provides great-tasting protein.
- High-moisture chicken broth adds hydration to supplement cats’ naturally low thirst drive.
- 100% non-GMO ingredients. No fillers or artificial ingredients.
- No grains, fruit or vegetables, or carrageenan.
No. 6
PetAg High Calorie Gel Supplement for Cats - 3.5 oz - Chicken Flavor - Provides Extra Calories for Cats 8 Weeks and Older - Easy to Digest
- HIGH CALORIE GEL SUPPLEMENT - High Calorie Gel Supplement for Cats boosts calorie intake without adding meals to support weight gain, provide energy, and promote overall health. It also helps maintain healthy skin and coat.
- SPECIALLY FORMULATED - This formula is ideal for meeting the high-calorie needs of growing kittens; cats recovering following illness or surgery; and for most young cats who could be finicky eaters.
- EASY TO DIGEST - The easy-to-feed gel contains energy-rich vegetable fats for easier digestion. It features a palatable chicken flavor cats enjoy.
- SUGGESTED USE - Feed orally. Keep out of reach of children and pets. Store in a cool dry place.
- ABOUT US - PetAg is a trusted leader in pet wellness, with science-backed formulas in our milk replacers, health supplements, and grooming products helping pet owners to proactively enhance the lives of their pets, for more healthy years together!
No. 7
High Calorie Nutrition Paste for Cats – 12g x 30 Bars- Provides Weight gain and Appetite Support for picky or underweight Cats - Contains Taurine, DHA Colostrum - Promotes Vitality and Healthy Growth
- This high-calorie cat weight support formula is designed as a natural cat appetite stimulant, providing nutrient-dense energy similar to high calorie cat food. It helps underweight cats maintain healthy body condition, making it an ideal cat weight gainer option for kittens, adults, and seniors.
- Formulated with premium taurine for cats, this supplement supports feline vitality, energy levels, and daily wellness. As a safe taurine supplement for cats, it promotes heart, vision, and metabolic balance, helping cats stay active while benefiting weight and appetite support.
- Enhanced with lysine for cats and DL-Methionine, this blend supports muscle wellness, immune balance, and healthy body condition. These essential amino acids complement cat immune support supplement needs while reinforcing appetite, digestion, and weight maintenance.
- Our advanced collagen for cats blend helps maintain muscle integrity, joint comfort, and digestive wellness. This functional cat collagen supports nutrient absorption and works alongside taurine, lysine, and DL-methionine to enhance appetite, vitality, and healthy feline weight gain.
- This multi-functional formula works as a gentle cat appetite stimulant and cat weight gainer supplement for kittens, adult cats, and seniors. The combination of high calorie cat food–style nutrition, taurine for cats, lysine for cats, collagen, and DL-methionine supports immune health, muscle strength, and digestive balance.
No. 8
Under the Weather Pet Electrolytes Ready Cal Plus Gel for Cats | Vet-Formulated High-Calorie Supplement for Cats & Kittens | Promotes Weight Gain & Boosts Energy for Sick Felines | 3.5 Oz Tube Pack
- HIGH-CALORIE SUPPLEMENT GEL WITH ELECTROLYTES: Give your feline companion a nutritious, high-calorie treat to support their daily needs. This ready-to-use gel is packed with essential nutrients and healthy ingredients to help cats and kittens struggling with their appetite gain weight. Specially formulated to enhance appetite and boost energy levels, it’s safe for cats of all ages and the perfect solution for promoting overall well-being. Shelf life: 24 months from manufacturing date. EXP date printed on top of the cap as EXP MM/YY.
- VET FORMULATED AND APPROVED: This tasty salmon-flavored ready-cal gel oral supplement was carefully formulated by veterinarians, ensuring wellness for cats and kittens of all ages. This high-calorie supplement is enriched with a perfect blend of essential vitamins, minerals, electrolytes, Omega-3 and Omega-6 essential fatty acids, which are vital for promoting optimal brain function, maintaining a healthy heart, and shiny coat.
- IDEAL FOR FINICKY CATS AND KITTENS: This easy-to-feed high-calorie oral gel is specially designed to provide essential nutrition for growing kittens, young cats, recovering pets after surgery or injury, senior cats, and even picky eaters. A must-have nutritional cat supplement for supporting the overall health and vitality of your beloved feline companions.
- EASY-TO-USE SQUEEZABLE TUBE: This tasty oral gel supplement comes in a convenient 100cc squeezable tube. To encourage even the pickiest of pets, simply apply a small amount to their lip or paw. They'll naturally lick it off, enjoying the appealing flavor, making the process both simple and enjoyable for you and your furry friend.
- ALL-NATURAL & MANUFACTURED IN THE USA: Our tasty lickable cat high-calorie treats are proudly made with all-natural ingredients and manufactured in the USA. A portion of every sale supports the spay/neuter and transportation of pets from overpopulated areas of the USA to the Northeast for adoption. Shelf life: 24 months from manufacturing date. Product is labeled with ‘EXP MM/YY’ on the lid.
The Ultimate Buying Guide: A Purrfect Choice for Your Underweight Cat
Is your feline friend a little on the skinny side? Don’t worry! Many cats can benefit from a diet designed to help them gain healthy weight. Choosing the right cat food can make all the difference. This guide will help you find the best option for your kitty.
Key Features to Look For
When you’re looking for cat food to help your cat gain weight, several things are super important.
- High in Calories: The most crucial feature is a food with more calories per serving. This means your cat gets more energy from each bite.
- High-Quality Protein: Protein helps build muscle. Look for foods where meat, like chicken or fish, is the first ingredient. This makes sure your cat gets the building blocks for a healthy body.
- Healthy Fats: Fats provide concentrated energy. Look for sources like chicken fat or fish oil. These fats are good for your cat’s skin and coat too.
- Palatability: Your cat has to want to eat the food! Many weight-gain foods have a richer taste and smell. This makes them more appealing.
- Nutrient Density: This means the food packs a lot of good stuff – vitamins and minerals – into every bite. This supports overall health while your cat gains weight.
Important Ingredients to Consider
The stuff that goes into the food matters a lot.
- Animal Proteins: As mentioned, meat is key. Look for named sources like “chicken,” “turkey,” or “salmon.”
- Healthy Fats: Chicken fat, fish oil, and animal fats are good choices.
- Vitamins and Minerals: A balanced mix supports your cat’s body functions.
- Carbohydrates (in moderation): While protein and fat are top priorities, some healthy carbs like rice or sweet potatoes can add calories and energy.
Factors That Improve or Reduce Quality
Some things make a food great, while others can make it less ideal.
- What Improves Quality:
- Named Meat Sources: “Chicken meal” is better than just “meat by-products.”
- No Artificial Colors or Flavors: These don’t help your cat’s health.
- Balanced Nutrition: The food should meet AAFCO standards for your cat’s life stage.
- What Reduces Quality:
- Fillers: Ingredients like corn or wheat that don’t offer much nutritional value.
- Excessive Carbohydrates: Too many carbs can make your cat feel full without getting enough protein and fat.
- Artificial Additives: These can sometimes cause digestive upset.
User Experience and Use Cases
How do people actually use these foods, and what do they experience?
- For Kittens: Young cats need lots of calories to grow. Weight-gain food helps them reach a healthy size.
- For Senior Cats: Older cats might lose weight due to illness or a slower metabolism. These foods can help them maintain strength.
- For Recovery: Cats recovering from surgery or illness often need extra calories and nutrients to get back on their feet.
- Picky Eaters: If your cat turns up their nose at regular food, a more palatable weight-gain formula might be the answer.
- Owners’ Experience: Many owners report seeing their cats become more energetic and visibly fill out their frames. They often notice improved coat condition as well. It’s important to transition slowly to avoid upsetting your cat’s stomach.
Frequently Asked Questions (FAQ)
Q: What is the main goal of cat food for weight gain?
A: The main goal is to provide extra calories and nutrients to help underweight cats reach a healthy body weight.
Q: How quickly can I expect to see results?
A: Results vary, but you might see gradual changes over several weeks to a few months. Consistency is key.
Q: Can I feed weight-gain food to any cat?
A: It’s best for cats that actually need to gain weight. Always consult your veterinarian first, especially if your cat has underlying health issues.
Q: What if my cat doesn’t like the taste?
A: Try warming the food slightly or mixing a small amount with a favorite wet food. Some brands are more palatable than others.
Q: How much of this food should I give my cat?
A: Follow the feeding guidelines on the package, but your vet can give you the best advice based on your cat’s specific needs.
Q: Is weight-gain food high in fat?
A: Yes, these foods are typically higher in healthy fats to provide concentrated calories.
Q: Should I switch my cat’s food suddenly?
A: No, always transition slowly over 7-10 days to avoid digestive upset.
Q: What if my cat gains too much weight?
A: If your cat gains weight too rapidly or becomes overweight, consult your vet immediately. You may need to adjust the diet or feeding amount.
Q: Are there wet food options for weight gain?
A: Yes, many brands offer wet food specifically formulated for weight gain. This can be a great option for picky eaters or cats who need more hydration.
Q: When should I see a vet about my cat’s weight?
A: Always see a vet if you’re concerned about your cat’s weight, whether they are underweight or overweight. They can rule out any medical problems and recommend the best plan.