Best Cat Food For Weight Gain In 2021

Are you a cat lover? Concerned about your cat’s health? Then our compilation guide will tell you the most important Best Cat Food For Weight Gain.

This research-based list has been drawn after proven testing.

Many pet owners worry that their pets gain an unhealthy amount of weight. Obesity is a serious health problem in pets, but it is not the only possibility: your cat could also be very unhealthy if it is underweight. In fact, unhealthy weight loss becomes an increasingly common problem as a cat’s age.
In this article, we will explore the topic of underweight cats. We will review some of the reasons some cats lose too much weight and give you some simple tips to help you regain healthy body weight. You’ll also see our recommendations on the best cat food for weight gain.

Best Cat Food For Weight GainEveryone knows that cats can be picky, but you shouldn’t worry about whether or not your furry friend will be consuming Doc Roy’s Forti Cal Gel. This gel tastes great, so even fussy felines will happily eat it. Plus, costing around $ 15 for a three-pack, it’s actually surprisingly affordable, ounce for ounce.

The correct serving size is 1.5 teaspoons for every 10 pounds of your pet’s body weight (or 3 teaspoons for every 10 pounds if your cat is not currently eating all the food it provides), making it very helpful with a cat with low weight.

The Top 5 Best Cat Food For Weight Gain in 2021

Verdict Product Rating
Best Cat Food For Senior Cats To Gain Weight Tomlyn Nutri-Cal 4.1
Best Senior Cat Food For Weight Gain Miracle Vet High-Calorie Weight Gainer 4.1
Best Canned Cat Food For Weight Gain Instinct Original Grain-Free Recipe Natural 4.1
Best Dry Cat Food For Weight Gain Instinct Freeze Dried Raw 4.4
Best Wet Cat Food For Weight Gain  Vetoquinol NutriCal 4.5

TOMLYN Nutri-Cal High Calorie-Nutritional Gel

Best Cat Food For Senior Cats To Gain Weight

Looking for a cat weight gain supplement that doesn’t cost too much? Tomlyn Nutri-Cal For Cats is worth closer examination. With a price tag of less than $ 8 per pack, it won’t leave you out of pocket, although it does work out costing more by weight than some alternatives, even though the total price is lower.

So, don’t waste your time & pick up this best gel for your cat & surely you’ll be happy to see the results.


The malt flavor is great for finicky eaters, with the vast majority of buyers saying that their cat loves the taste.

Of course, nothing is ever certain with cats, which is why we love the fact this supplement comes with a 100% satisfaction guarantee.

If your kitty companion won’t touch it, or you simply aren’t happy with the results, the manufacturer will give you your money back.


It has a very similar nutritional profile to our runner-up pick, packing in 28 calories per teaspoon, plus a range of vitamins, minerals, and healthy fats.


  • Contains vitamins A, D, and E, plus a range of B vitamins

  • Tasty malt flavor
  • Mix with food or feed it as it is

  • Specifically not


Miracle Vet High-Calorie Weight Gainer for Dogs & Cats

Best Senior Cat Food For Weight Gain

With all-natural components and a transparent ingredient list, you don’t have to worry about undesirable synthetic additives or undisclosed proprietary blends.
At an impressive 150 calories per ounce, Miracle Vet High-Calorie Weight Gainer for Dogs and Cats will help your underweight cat gain weight.


Most of the calories come from fish oil and canola oil, with quite a bit of whey protein there. Along with these high-calorie ingredients, it has a variety of vitamins and minerals to improve overall nutrition. The formula is vet-approved and is produced in an FDA registered facility.

We did come across some mixed reviews about its palatability to cats. However, you can inject it directly into your pet’s mount with a syringe or dropper, if they don’t like the taste mixed with their food.

  • 150 calories per ounce

  • Most of the calories
  • The formula is vet approved

  • Expensive


At around $ 25 for a 16-ounce bottle, it’s not the cheapest option out there, but a little goes a long way, so this bottle should last a while.
Therefore, you can take this without wasting time.
Your cat would love this.


Instinct Original Grain-Free Recipe Natural Wet Canned Cat Food

Best Canned Cat Food For Weight Gain

If you’re looking for the best-canned cat food for weight gain, we recommend this Instinct by Nature’s Variety chicken recipe. This formula features fresh chicken and turkey as the two main ingredients, followed by chicken liver and chicken broth as sources rich in natural flavor and moisture.


High in moisture and loaded with a meaty flavor, this recipe should appeal to even the most demanding cats, and as it is made from healthy natural ingredients, it will be highly nutritious and easy to digest.

It contains 193 calories per 5.5-ounce can and contains a dry matter estimate of 45% protein and 34% fat. It also contains fresh fruits and vegetables as natural sources of key nutrients.

  • Rich in protein and animal flavor, high-quality natural ingredients, high protein and calorie content, lots of healthy fat, fresh fruits, and vegetables.

  • maybe too high in fiber for some cats, the main source of fat is plant-based (flaxseed)



This high-calorie wet food formula is made with 95% animal protein from chicken, turkey, and chicken liver with zero grains and no artificial additives.

This is a better formula to consider.

Instinct Freeze Dried Raw Boost Mixers Grain-Free

Best Dry Cat Food For Weight Gain

A delicious way to add excitement to every meal, this food ingredient is made with whole food ingredients like beef and apples, sweet potatoes, peas, and blueberries, all 100% freeze-dried, making it packed with flavor and nutrition. And you can feed it your way: just use it dry as a garnish or rehydrate as food to add vibrant fruits and vegetables to your friend’s bowl.


Its protein-packed cat food recipes with a natural probiotic booster, more Omegas * and more antioxidants * (* than Instinct Original) for digestive health, skin and coat, and a healthy immune system is highly reliable.

Delicious and nutritious pet food should only use real ingredients. For Instinct, this means totally natural and real meat, fruits, and vegetables, without anything artificial.
The ingredients in whole foods are gently lyophilized to remove moisture, sealing all that flavor and health-enhancing nutrients.
Put the pure, real nutrition of raw in each bowl. Instinct Raw Boost Mixers are all-natural, protein-packed, minimally processed GMO-free natural meat and fruit and vegetable bites.

  • freeze gently

  • Improves health
  • delicious

  • Certainly not



Everything works to support proper digestion, healthy skin and coat, and energy and vitality with the best ingredients from around the world.


Vetoquinol Nutri-Cal High-Calorie Nutritional Oral Gel Supplement

Best Cat Food For Senior Cats To Gain Weight

If you want a tasty feline weight gain supplement to feed alongside your pet’s regular diet, Vetoquinol NutriCal is worth considering. It costs about $ 12, it’s cheaper to buy than our main selection, but it actually costs more per ounce since you only get about a third of the amount.


You can feed it as a gift, directly from the tube, or mixed with your pet’s meals. However, if your cat is losing weight because it will not eat its full meals, it is best to give it an increased dose separately from its food, otherwise, it will not consume everything.

Although they may not be the healthiest ingredients, substances like molasses and malt syrup are calorie-dense and make this supplement tasty for your cat. However, we wouldn’t necessarily recommend it as a long-term weight gain solution. If your cat is constantly losing weight, your vet may recommend a change in diet.


In addition to these calorie-dense ingredients, Vetoquinol NutriCal contains a variety of vitamins, minerals, and Omega fatty acids, helping to make it more nutritious overall.

  • Tasty

  • Easy to use
  • Cheap

  • Not useful for long-term use.


Frequently Asked Questions:

This list also has answers to the most common issues, which occurred during your pet’s regular routine:

What can I feed my cat to help him gain weight?

It is always a good idea to visit a vet if you are really concerned that your cat’s weight is unhealthy, but here are some tips to help you gain controllable gain:
● Choose foods rich in protein
● Use tasty treats
● Make sure they are physically active
● Use wet food too
● Feed your cat for free

How do you fatten a cat?

It is really very important to get professional advice from a veterinarian if you have the slightest concern that a medical problem may be causing your cat to be underweight.

However, aim for foods that have more than 30% protein, or the higher the percentage of protein, the better. Foods with fat levels between 15% and 25% are a great option if you need your cat to gain weight naturally.

Does high protein cat food cause weight gain?

Protein is the most important part of a cat’s diet while increasing the amount of food is a good idea, you should also make sure it’s the right kind of food first. It will help to opt for one of the cat foods we have listed above as the best for weight gain.

What fattens wet or dry cat food more?

Wet food generally has a much lower calorie content, but using it in conjunction with a calorie-dense dry food can help cats digest their food and keep them interested in meals. Having a variation on a cat’s diet is never a bad idea, and wet food helps it get the much-needed moisture.


The Other 5 Best Cat Food For Weight Gain we reviewed in 2021


Solid Gold – Indigo Moon – Holistic Dry Cat Food for All Life Stages

Best Dry Cat Food For Weight Gain

To help your underweight cat gain weight, one of our top picks for the best high-calorie dry cat food is this Solid Gold Indigo Moon with Chicken and Eggs, High Protein Dry Cat Food.


Recently reformulated, this recipe contains 475 calories per cup and a whopping 42% protein and 20% fat. The main ingredient is chicken flour, a highly concentrated source of animal protein with a blend of canola oil and fish oil for healthy fats. You’ll also find a variety of fresh fruits and vegetables, including grain-free carbohydrates, to provide natural sources of key nutrients.
Many pet parents prefer to feed their cats kibble because it is more affordable, for the most part, and has a longer shelf life than canned food after opening.


Made with healthy, natural ingredients like Alaska Wild Pollock, this recipe provides 42% protein, 20% fat, and over 450 calories per cup.
Overall, this is a good choice.

  • Rich in animal protein, a rich mix of omega fatty acids, healthy natural ingredients, easy to digest with probiotic supplements, chelated minerals

  • the main source of fat is plant-based (canola oil)

Oxbow Carnivore Care Pet Supplement, 2.5-Ounce

Best Dry Cat Food For Weight Gain

Carnivore is a premium recovery food for carnivores with poor nutritional status as a result of illness or surgery. Critical Care: The carnivore is high in calories and requires less volume intake to meet daily energy requirements.


Containing 216 to 312 calories per daily serving, for an average-sized cat, this weight gain supplement helps a lot to fatten your feline friend.

This specially formulated product contains easily digestible protein derived from high-quality egg and poultry sources to improve nutrient absorption and optimize energy levels.

This product will help your ferret regain the lost weight he so badly needed. Even if you were recently diagnosed with lymphoma and this is easy to feed with a syringe while waiting for you to start wanting to eat alone again.

This unique blend comes in a convenient powder formula that, when mixed with water, allows for just the right amount of Carnivore Care.

  • Highly palatable

  • Easy for the digestive system.
  • Just add water

  • Certainly not


This specially formulated product contains beneficial omega fatty acids and easily digestible proteins derived from premium egg and poultry sources to support nutrient absorption and optimize energy levels.


Instinct Limited Ingredient Diet Grain-Free Recipe Natural Cat Food

Best Dry Cat Food For Weight Gain

Instinct’s ingredient list is deliberately simple, made with ONE ANIMAL PROTEIN and ONE VEGETABLE, compared to the mix of each you’ll find in most other cat foods. Guided by the purity and simplicity of the Instinct Limited Ingredient Diet Real Grain Gluten-Free Peacock Recipe is simple and essential nutrition your cat needs to thrive.


This is made with wild salmon, an easily digestible protein-rich in Omega 3, which provides all the essential amino acids.
It’s made without grains, dairy, eggs, chicken, beef, sweet potatoes, potatoes, chickpeas, corn, wheat, soy, artificial colors, or preservatives.

The only limited ingredient in the kibble diet with pure, real nutrition of raw in each piece
It’s made in the United States with the best ingredients from around the world.

It carries guaranteed levels of omegas and natural antioxidants for healthy skin and coat and immune health.

  • Easily digestible

  • Valuable

  • Time must consider


Choosing a recipe for cats with food allergies can be difficult, but this limited-ingredient diet features the royal rabbit as the main ingredient and provides 35% protein and 19% fat.


Merrick Purrfect Bistro Variety Pack Wet Cat Food

Best Wet Cat Food For Weight Gain

Merrick set about making healthy, natural pet food from local ingredients in his own Texas kitchens. Packed with high-quality protein, healthy fats, vitamins, minerals, and antioxidants, Merrick’s recipes contain no additives, sweeteners, artificial colors, preservatives, or fillers.


Loaded with antioxidants to support immunity, omegas for healthy skin and coat, plus vitamins, minerals, and taurine in every bite, it’s sure to stoke all your kitty’s adventures, and then yum yum! Plus, it has zero grains, artificial colors, flavors, or preservatives, so you can let Kitty dip right into her bowl.

Boneless chicken is the first ingredient, and along with chicken and turkey meals, helps understand the protein level of 70% of meat-derived ingredients that are highly digestible and rich in essential fatty acids. Fresh produce like sweet potatoes and peas specific easily digestible carbohydrates that offer the benefit of sustained energy without altering the digestive systems sensitive to grains.


  • High quality, grain-free diet fortified with vitamins, minerals, probiotics, and antioxidants.

  • Not certainly



Available in several protein options, this canned food is high in fat, protein, and fat, but is completely free of artificial additives, as well as corn, wheat, and soy.


ZIWI Peak Wet Cat Food – Natural High Protein, Grain-Free, Limited Ingredient Recipes

Best Wet Cat Food For Weight Gain

If you are looking for good food to increase your cat’s protein and calorie intake without triggering allergies or sensitivities, try this canned food with the Ziwi Peak Lamb recipe.


Food allergies and sensitivities can cause a cat to lose weight if it has trouble digesting food. In many cases, food allergies are caused by low-quality ingredients and by-products, but some cats are allergic or sensitive to common proteins like chicken or beef.

Certain ingredients make it an extremely calorie-dense food with high protein content and not much carbohydrate matter.
When struggling with the loss of appetite, you need to find food that your cat is willing to eat. Choosing delicious food can be a lifesaver. Like Zivi pico wet cat food.


It features lamb as a unique source of premium animal protein with limited carbohydrate content and plenty of natural flavors.
It contains a dry matter estimate of 43% protein and 27% fat.

  • unique source of premium animal protein, rich in healthy fats, low in carbohydrates, full of real meat flavor, complete and balanced chelated minerals

  • somewhat expensive compared to average wet food


Buying guide

Cats are obligate carnivores, which means they have a biological requirement for a high protein diet. Nor any protein: it must be high-quality animal protein.

In nature, more than 50% of a cat’s diet comes from protein. Research suggests that older cats may lose weight on a diet that contains less than 36% protein. So the higher the protein content of your cat’s new food, the better.

These are some of the things we look for in good cat food to gain weight:

High-quality animal protein sources
Look for higher fat content
Healthy and natural ingredients
Limited starch and carbohydrate content
Beneficial supplements


Here are some of the most common causes of weight loss in cats:
• Nephropathy
• Diabetes
• Irritable bowel syndrome
• Dental problems
• Skinny Old Cat Syndrome (SOCS)

Therefore, you should be careful with the disease, take it to the vet, and consult it thoroughly.

You can see some simple tips to help an underweight cat gain weight:

• Try switching to a different cat food flavor. Sometimes cats stop eating when they get bored with their current diet; Making a change could increase your cat’s appetite.

• Add warm broth to your cat’s food to add flavor and moisture. Some cats have trouble eating dry food or find it unappetizing – warm broth can make it easier to eat and tastier.

• Switch to a higher quality cat food so your cat’s body can more easily digest the ingredients and absorb its nutrients – fresh food is a great option.

Hopefully, this information will help you choose the best one.

Last Thoughts

You must keep in mind that like humans, animals have different nutritional needs based on their age. As an example, kittens need high protein and calorie diets to support growth and accelerated development. Older cats may need low-calorie foods or one with specific nutrients to minimize the risk of overweight gain and age-related problems.

Keep all the variants in mind when buying what works best for you and don’t be afraid to consult a vet! Good luck!

Thank you for considering this whole article, I’m sure this will help you to make a good decision.