How to fatten up a cat? 9 important methods to consider!


If your cat is skinny, then the best method to fatten up a cat is to switch its normal food for kitten food having calories and essential nutrients. Cat food is best because it has a high concentration of protein as well as fatty acids.

Additionally, you must gradually enhance the quantity of food you offer your cat until it gains a healthy body weight. When your cat rejects its diet, and you have provided some different flavors, then it is suitable to take your cat to a veterinarian because there can be a health problem why it is underweight.

It would be best to consider everything starting from the good care to the best food your cat eats.

Why is your cat underweight?

Cats should be in a definite weight range to be healthy and flourishing. A cat that is underfed and too skinny is unhealthy and more predisposed to the disease. But, a cat that has extra weight is also sick and more susceptible to disease. 

By keeping this in your mind, you only need to fatten up a cat right underweight to help it gain healthy weight and to flourish in its everyday activities. Moreover, as a liable cat owner, you should never let your cat get obese as this will have severe concerns for their health. 

While looking at a slim cat, you can suspect he is skinny. It is unlucky having your kitten look and feel ill due to his weight deficiency, particularly if your feline does not have a hunger too! You’re possibly questioning why your kitten looks so lean yet not eating, although you offer him all the food.

Here are some potential causes why:

  1. Malnourishment

Nutritional deficiency is one of the common causes for a cat to be skinny and require fattening up. Your cat’s food intake can be okay; however, what she consumes lacks essential nutrients.

Several owners only offer their kitten junk and human food, which can be the reason why your cat doesn’t get sufficient calories as well as nutrients to retain his weight.

  1. Selective eating

The majority of cats can be selective eaters, mainly if they aren’t familiar with a new kind of food. Numerous cats can eat the kitten food or decide to leave it for the period of mealtime.

  1. Suffering from disease

Deficiency of appetite or excessive weight loss is one of the common signs of any illness. If a cat feels uncomfortable and cannot consume food, you must go to a vet. When your adult cat is suffering from several disorders, then he can start to lose hunger and weight too.

Make a Plan of Action for Your Cat

When you, as well as your veterinarian, make a plan for handling the underlying illness, you can do hard work on your cat to gain weight. Besides, your veterinarian will have definite recommendations for your cat depending upon their age and therapeutic needs.

Additionally, a diet adapted to your cat’s particular medical condition can result in a great ending. Your veterinarian will also recognize your cat’s perfect weight and can do consistent weigh-ins to ensure that your plan is operative and that your feline does not surpass its ideal weight.

Top 9 methods to fatten up a cat

Most people need to fatten up a cat to make its health better, whereas others need a bit extra fat in their kittens for better cuddles! Whatever can be the situation, here are some methods to fatten up a cat:

Initially, check with a vet

Before you want to enhance your cat’s weight, observe what he requires with his vet first. Besides, you should also ask about your feline’s perfect weight range and notice how much he requires to gain weight.

Similarly, ensure to see if your kitten’s low weight or deficiency of nutrients arises from a disease. Allow your veterinarian recommend vitamins or drugs if required. Have your kitten response for checkups to ensure he is in his appropriate bodyweight range.

Slowly change and enhance cat food.

When you recently purchased a new category of cat food, ensure that the change is slow; thus, your kitten can become used to it. Besides, add a small amount of new kitten food to the previous one.

In addition, slowly increase the quantity of new cat food daily while correspondingly decreasing the old food until your cat is used to the new cat food.

Select a nutrient-high cat food

The kitten food you provide your cat might not contain sufficient nutrients for each serving. Alternatively, we suggest you select the best cat food, for example, premium cat food containing high-quality essential vitamins as protein like Wellness Signature Picks Natural Canned Wet Kitten Food.

Furthermore, always pay attention to the label and diet facts before buying, as several generic kitten food companies have preservatives as well as fillers.

Flavor it up!

If your kitten doesn’t eat cat food due to the taste, you should change it by adding additional flavor! Besides, add any kind of fish oil to your cat’s food. Felines also love the flavor of fish oil, which increases your cat’s weight because they have a considerable amount of required calories.

Furthermore, if your kitten still doesn’t eat his food at that moment, you can also offer field-made gravy. Offering protein-rich delicious treats among his meals is excellent, as well!

Moreover, “human food” like cottage cheese, potatoes, egg whites, and yogurt are suggested since they contain more calories and help fatten up a cat.

Kitten food

Cat food can be a good meal option for felines that need to increase weight! This kind of food contains countless protein and fat rather than mature cat food; thus, focus on buying grain-free as well as high-grade kitten food without fillers.

Furthermore, kitten food might be better for felines who are either selective eaters or senior cats who require a soft diet. As a suggestion, you might go for tinned kitten food in its place.

Offer Canned Kitten Food

Canned kitten food is rich in protein and fat per gram compared to the canned food for adult felines. This is as kittens are growing and they require the extra source of amino acids as well as fatty acids for their growth.

Prefer Fresh or Wet Food

Generally, fresh or wet food is rich in protein and lower in carbs rather than dry food. Also, cats look to accept it more willingly than dry food, particularly those that are facing difficulty finding a hunger. Apart from the type of food your cat prefers, finding a bowl that is guaranteed to keep the mess enclosed can be hard.

Supplement Fish Oil

Fish oil is an outstanding way of enhancing the calorie amount in the cat’s food with the extra benefits of increasing the cat’s food flavor. It is an outstanding source of omega fatty acids.

Observe Sensitivities and Intolerances

Sensitivities as well as intolerances to certain foods can be the cause why a cat is consuming less and losing weight. These sensitivities may develop later; thus, food that used to be digested by the body before might now be making your feline feel unwell. Bloating, smelly feces, loose feces, diarrhea, as well as vomiting are all symptoms that you should further inspect your cat’s food.


Q: What can I offer my cat to help gain weight?

A: Your vet can recommend cat foods containing a high amount of calories, such as Royal Canin cat food and Hill’s Prescription canned cat food. These cat foods are very digestible and offer the additional calories your kitten requires to gain weight.

Q: Why is my cat skinny?

A:  The most common gastrointestinal issues that generate weight loss in kittens include IBD, certain infections, and food toxicity. Abdominal parasites. Also called worms, they can be the main reason for your cat’s involuntary weight loss.

Q: How to fatten up a hungry cat?

A: The primary rule here is not providing excessive food at once. It can also lead to anorexia. Excessive food in one serving will be bad for your cat. The meal does not digest appropriately and cause belly pain and failure to be absorbed. Offer small quantities of wet food to your cat.

Final thoughts

Fattening up your cat with skinny problems can be a big challenge for a cat owner. Usually, such eating habit is supplemented with extra health issues. Your initial step must contain a vet meeting, who will notice the main reason for weight loss and provide his useful suggestions.

Additionally, as a cat owner, you must know that a caring environment and no anxiety are most likely the main circumstances to solve the problem. Thus, let your cat be healthy!

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