How to Get a Cat to Gain Weight the Right Way [Causes & Solutions]

One of the biggest worries that cat parents have is cats losing weight, without identifying the immediate cause.

If this has happened to your cat, you need to visit the vet clinic to have your cat examined, even before adjusting your cat’s diet, changing the feeding schedule or even introducing supplements to your cat.

A cat may lose weight due to an underlying health condition or taking foods which are not nutritious enough. Some of the causes of weight loss in cats include:

  • Worms
  • Food allergies
  • Inflammatory bowel infections
  • Anxiety and stress
  • Diabetes
  • Cancer
  • Toothache and
  • Boredom

After conducting medical diagnosis on your cat, a vet may attribute the weight loss to any of these factors, or other causes not outlined in this list.

How will I make my cat gain weight?

There are several ways that you can use to make your cat gain weight.

Before using any of these methods, it is important to first consult the veterinary to clear any doubts that you might have about an illness or the food that your cat is currently eating.

Here are a number of ways to help your cat gain weight:

1. Check for worms or any signs of illness

Most often, your cat may lose weight because of worms or parasites. You may go for months without realizing that your cat has worms.

Worms may also affect your cats fur quality, which is easily noticeable than weight loss. To get rid of the worms, you will need to use an over the counter cat dewormer.

2. Increase Cat food amount and frequency

Increasing your cat food amount and frequency will also help your cat gain weight.

Cats prefer to eat small portions of foods several times a day rather than one large bowl a day. Smaller portions more frequently will also give your kitty more appetite. Try to increase the amounts and spread it across the day.

3. Select healthy and nutritious food brands for your cat

Choosing premium cat food brands for your cat. Adults Cats require some extra calories to obtain the nourishment they need. Ensure your cat food has a high proposition of proteins (with meat as the first ingredient).

Avoid foods that have cereals, additives, soy, corn and meat by-products. This is because these products are difficult to digest and not nutritious in the long term. You should also avoid foods high in carb.

Here is a selection of some of the best high-calorie foods that will help your cat gain weight.

These foods are protein-rich, and contain nutrients that will give you a healthy feline friend.

Dry Cat food for Weight Gain

We recommend the following dry cat foods that have high calorie content.

1. Blue Buffalo Wilderness Natural Dry Cat Food

This is our number one choice for dry cat food that will help your cat gain weight. The Blue Buffalo cat food is a trusted brand that has been in existence for over two decades.

The company uses high quality natural food. All these ingredients are sourced from the U.S local farmers. This cat food has a high reputation among cat parents.

It has a minimum of 40% proteins, 18% crude fat and 443 kcal/cup of calories.

2. Instinct Raw Boost Recipe Natural Dry Cat Food

Like Blue Buffalo, this cat food brand is protein-rich, and does not contain grain, wheat and other by-products. The first ingredient is cage-free chicken, which makes the food nutritious.

The food also has omega 3 fatty acids .This ensures a healthy skin and coat .The fruits and veggies improves your cat overall health. It has 43% proteins, 19.5% crude fat content, and 488 kcal/cup of calories.

Wet Cat food for Weight Gain

1. Blue Wilderness Nature’s Evolutionary Diet

The Blue Wilderness Nature’s Evolutionary Diet Cat food contains real animal proteins, and is rich in antioxidants that boost your cat’s immune system.

Some of the antioxidant-rich ingredients include: Blueberries, Cranberries, Sweet potatoes and carrots. This cat food contains real deboned chicken as the first ingredient.

This provides your cats with the necessary proteins. The food does not contain artificial preservatives or fillers. It has a minimum of 9% crude fat, 10% proteins and 132 kcal/3-oz can of calories.

2. Wellness Signature Selects Natural Wet Cat Food

The Wellness Signature Selects Natural Wet Cat Food is grain-free, and is less likely to cause inflammation. This cat food comes with different flavors, and you can pick your cat’s favorite flavors, and leave out the flavors that your cat is allergic to.

This cat food has a minimum of 8% crude fat, 12% proteins and 117 kcal/3-oz can of calories.

4. Use a mixture of wet and dry cat food

If you want to encourage your cat to eat more and gain weight try mixing wet and dry food. Most cats love wet food compared to dry food and mixing will encourage him to eat more.

5. Give your cat supplemental tasty treats

We have mentioned a number of protein-rich foods. This, however, does not mean that your cat will gain weight super quick.

That is why you may need a supplemental tasty calorie-dense gel. The Tomlyn high calorie gel is our recommended calorie dense gel. It contains 30% crude fat and has 28 kcal per teaspoon.

You will only need to add a small portion of it to your cat’s meal. The gel will help in quick weight gain and entice your cat to eat more. You should however pay attention not to spoil him too often.

6. Add human food to his diet

Apart from feeding your cat with healthy wet and dry cat food, you should consider adding wholesome homemade ingredients to your cat’s diet.

This should include unseasoned chicken or plain rice. Human food can be used to fatten your cat. Look for human foods that cats can eat and those that cats should avoid.

7. Give your cat a fresh bowl of cool water

You should try to give your cat a bowl of water every day.

Hydration affects a cats overall health and weight. If you keep forgetting to give your cat a bowl of clean water considers getting her a cat water fountain. A cat water fountain entices cats to drink more water, since they are more attracted to running water than still water.

8. Keep your cat active

Just like humans, cats develop a high appetite for food and water after exercise. Keeping your cat active could help your cat gain weight.

A cat will always have an appetite after a day of being active compared to when he wakes up or after a long nap.

9. Give your Cat a Homemade High-Calorie Cat Food 

This is our recipe for high calorie cat food you can make at home.


  • Raw chicken with bone if you have a grinder
  • Raw salmon
  • 1 egg York
  • 2 tablespoons of unsalted chicken broth
  • 1 teaspoon of Tomlyn’s  calorie gel


Mix the chicken and bones in a grinder then add the raw salmon, egg york, chicken broth and Tomlyn’s calorie gel.

Mix these ingredients in a food processor until they become smooth. You can then serve a bowl of food to your cat. With just those simple steps you will have an appetizing snack to help your cat gain weight.

Final Thoughts

Weight loss in cats is a contentious issue. It is a delicate issue that require a lot of caution. Before taking any action, you should first consult your vet to determine the cause of the weight loss. Generally, your cat may lose weight due to physical, mental, or health problem.

Change of diet may just be a quick way to fix this. Sometimes you may need to do more than this and this article is just all you need.

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