5 Best Cat Food for Constipation 2018 (Plus Stool Softeners & Laxatives)

Cat constipation refers to the irregular or difficult passage of bowels, mainly because of a problem with its digestive system. Typically, cats usually have one bowel movement per day, and any deviation from that should be a point of concern.

Most often, constipated cats may have three to four bowel movements per week. The bowels tend to be small, dry and hard, and the cat will strain while taking her trips to the litter box. Such signs may be a potential sign that your cat is experiencing constipation or a more serious problem like a urinary tract disease whose symptoms resemble those of a constipated cat.

A constipated cat often experiences a lot of discomfort and pain, and this may be accompanied by continuous wails while visiting the litter box. Immediately you suspect that your cat may be constipated, you should visit your veterinarian immediately.

The vet will diagnose the condition, and if found to be constipated, the vet will administer medication, and/or recommend that you buy a laxative and transition from the normal diet to the best cat food for constipation. If the constipated cat remains unattended for long, he/she may get megacolon, an irreversible condition of the colon that may make the situation even worse.

Best Cat Food for Constipation Comparison Chart

Cat Food Brand

Rating

Where to Buy​

Blue Buffalo Blue Wilderness Adult Chicken Recipe

Hill's Science Diet Adult Hairball Control

IAMS Proactive Specialized Health Care

Royal Canin Feline Dry Cat Food

Royal Canin Gastrointestinal Fiber Response

Symptoms of Constipation in Cats

  • Abdominal discomfort.
  • Loss of appetite.
  • Frequent trips to the litter box that are often unsuccessful.
  • Small, dry and hard stools.
  • Straining when passing bowels.
  • Vomiting.
  • The cat may appear restless.

Causes of constipation in Cats

Inadequate fiber intake

Fiber is the indigestible portion of plants that makes the stool bulky and easier to transport through the intestinal tract. Outdoor cats consume wild herbivorous prey that contains undigested matter in the gastrointestinal tract.

Some of the indigestible matter in these prey include hairs, skin, and teeth, which bulk the tool.

Typically, fiber may be classified into soluble and insoluble fiber. Soluble fiber (fast-fermenting) soften the stool and allows it to move quickly through the intestines, while the insoluble fiber (slow-fermenting) bulks up the stool and increases its transit time in the intestines.

Dehydration

Inadequate fluid intake is one of the most common causes of cat constipation. Usually, cats have a low thirst for water, despite requiring large amounts of water to support body functions.

The cat’s body is made up of about 70% water, and this means that they require to drink water daily, despite their low urge. The popularity of dry foods over wet cat food has made matters worse for cats since this type of food contains low moisture.

If your cat’s diet comprises mainly dry kibble, you should provide a water source to compensate for the low moisture content. If your cat is hesitant to drink water from the normal water bowls, you should use a stainless steel water fountain to entice the cat to drink more water.

Also, you should switch from a dry kibble to a raw or canned diet.

Inactivity

Inactivity is another cause of constipation. Inactive cats have fewer intestinal contractions than active cats, and this causes waste to build up in the intestines.

When the cat is engaging in playful activities, jumping and hunting, it experiences rhythmic contractions in the intestines and this allows the bowels to move through the intestines to the rectum. This inactivity is common among overweight or obese cats, and this causes them to experience constipation more often.

Physical obstruction

Constipation can also occur when there is a physical obstruction in the intestines. Usually, solid objects such as hairballs, foreign objects, and tumors may block the intestinal tract that moves the waste towards the rectum.

A cat experiencing constipation due to obstruction of the intestinal tract will experience a lot of pain and discomfort at the litter box.


Best cat food for constipation- Top 5 Picks

1. Hill’s Science Diet Adult Hairball Control Cat Food

 Hill's Science Adult Hairball Control Recipe is specially formulated with naturally occurring fibers to help remove hairballs. The fibers also prevent the formation of new hairballs. It also prevents constipation, allowing your cat to lead a comfortable active life.

The main ingredients used to make this product are chicken, whole grain wheat, corn gluten meal, pork fat and powdered cellulose. This meal is balanced to meet all of your cat’s nutritional requirements.

Its caloric content is 328kcal/cup.

Guaranteed Analysis

  • Crude protein 29.0% minimum
  • Crude fat 17.5% minimum
  • ​Crude fiber 10.0% maximum
  • ​Phosphorus 0.9% maximum
  • ​Sodium 0.5% maximum
  • ​Vitamin C 85mg/kg minimum
  • Vitamin E 550 IU/kg minimum
  • Omega-6 fatty acids 2.5 minimum

If you are new to this product, mix increasing amounts of this food with decreasing amounts of the old food over a week.

This meal is idea for adult cats (7 years and older).


2. IAMS Proactive Specialized Health Care Dry Cat Food

Iams Proactive Specialized Health Care cat food is rich in nutritious ingredients that meet AAFCO’s pet food nutritional profile. It is also rich in fiber which aids in proper digestion and protects your cat from constipation and hairballs.

This diet also contains antioxidants which maintain a good immune system. It has 10% less fat than original formulas

It has fewer calories, fat burning L-Carnitine and a unique blend of carbohydrates which keep your cat full hence enabling heavy cats to return to much healthier weight gradually.

The crunchy texture of kibble helps keep your cat’s teeth clean and free of tartar.

Designed for adult cats (10 years and above).

​Guaranteed Analysis

  • Crude protein 28% minimum
  • Crude fat 11% minimum
  • ​Crude fat 13.5% maximum
  • ​Crude fiber 6.5% maximum
  • ​Moisture 10% maximum
  • Taurine 0.13% minimum
  • ​L- Carnitine 80mg/kg minimum
  • Omega- 6 fatty acids 1.52% minimum
  • Omega- 3 fatty acids 0.155 minimum

3. Royal Canin Feline Dry Cat Food

Royal Canin Feline Dry cat food is 100% nutritional, and it also provides a pleasant taste and textures your cat will enjoy. It is highly digestible, and it contains optimal proteins, prebiotics, and psyllium.

It is ideal for cats with digestion complications and allergic reactions to food. It contains a different combination of fiber which eliminates hairballs and also protects your cat from constipation. This cat food has been proven to reduce stool production by 42% in less than ten days.

It has a caloric content of 3732 kcal. Kg, 351 kcal/cup.

Guaranteed Analysis

  • Crude protein 36% minimum
  • Crude fat 13% minimum
  • ​Crude fiber 3.7% maximum
  • Moisture 8.0% maximum

This meal is suitable for the adult stage of life. A 7-day transition is recommended before you begin feeding your cat the new food exclusively. This allows your cat’s digestive system to adapt to the fresh food smoothly.


4. Royal Canin Gastrointestinal Fiber Response Dry Cat Food

Royal Canin Gastrointestinal Fiber Response dry cat food contains adequate fiber for effective management of colitis, diarrhea, and constipation. It is also a balanced diet meal made of protein, fiber and other essential nutrients hence supplying all the supplements your cat needs.

It also contains prebiotics, omega-3, and antioxidants all-around health for your feline friend. It is precisely meant for cats with digestive health issues or food sensitivities. It is a delicious delicacy so your cat won’t dread meal times.

An optimal blend of both soluble and insoluble fiber helps to maintain healthy digestion and maintain your cat’s overall well-being.

This cat food requires a veterinary prescription.

Caloric content- 3687 kcal/kg, 361 kcal/cup

Guaranteed Analysis

  • Crude protein 29% minimum
  • Crude fat 13% minimum
  • ​Crude fiber 4.7% maximum
  • ​Moisture 8% maximum
  • ​Eicosapentaenoic acid (EPA) 0.18% minimum
  • ​Docosahexaenoic acid (DHA) 0 .08% Minimum

5. Blue Wilderness High Protein Adult Chicken Recipe

Blue Wilderness high protein dry cat food is made by blending all the essential nutrients, minerals, fibers, antioxidants to create a delicious and balanced diet for your cat. The prebiotics and fibers support healthy digestion and nutrient absorption. They also help to maintain an optimum weight.

It is loaded with Taurine which helps in sustaining good eyesight and a healthy heart. It is a perfect alternative to raw cat diets.

It is made with real chicken as its main ingredient. It does not contain any grains, wheat, gluten, soy, corn poultry or it's by-products. This makes it ideal for kitties with sensitive stomach and allergies.

This meal has a caloric content of 3825 kcal/kg, 435 kcal/cup.

Guaranteed Analysis

  • Crude protein 40% minimum
  • Crude fat 18% minimum
  • ​Crude fiber 4% maximum
  • ​Moisture 10% maximum
  • Magnesium 0.14% maximum
  • ​Taurine 0.15% minimum
  • ​Omega- 3 fatty acids 0.15% minimum
  • Omega- 6 fatty acids 3.5% minimum

For new consumers, start by mixing 25% of this meal with your old cat’s food and increase the content gradually over a span of two weeks.


Best Laxatives and stool softeners for cats

Apart from buying cat food for constipation, you can also try laxatives or stool softeners that are specially formulated for cats.

When the vet has diagnosed your cat with constipation, he/she may administer an intravenous injection or recommend a laxative or stool softener to relieve constipation.

Stool softener for cats

These supplements help soften hard fecal matter that makes cats strain while relieving themselves in the litter box. These softeners are safe to use and are recommended by veterinary as a short-term relief for constipation. Here are best stool softeners for cats:

1. Virbac’s Vetasyl Fiber Supplement

Best stool softener for cats

Virbac’s Vetasyl is one of the top-rated stool softeners for cats that cat parents love. It is made with 100% natural fiber and has no chemicals that may harm your cat. It is easy to administer and provides a gentle relief from constipation.

Although this stool softener is advertised as a fiber supplement, it does work well in aiding natural elimination. You can use it in both kittens and adult cats that experience difficulty while passing bowels. It can also be used to soften stool in constipated dogs.

This supplement has 100 capsules that are sprinkled over the cat foods. The recommended dosage is one capsule per 20 lbs. of body weight, but you should receive specific instructions from your vet according to your cat’s condition.

Although most cat owners have successfully used this supplement to soften stool in constipated cats, there are some cat owners whose picky-eater cats refused to eat food sprinkled with this supplement.


2. Pen-Ema Enema for Dogs and Cats

stool softener for constipated cats

Pen-Ema is a safe treatment for constipation, and it can be used for both cats and dogs. It is a disposable enema for rectal use that treats cats with a syringe dispenser. It works by stimulating intestinal mucosa that softens the hard fecal matter for easy movement to the rectum.

This treatment contains dioctyl sodium sulfosuccinate in glycerin which stimulates the release of the intestinal mucosa. One syringe contains 12ml of the treatment, which is administered in a single dose. It can be used in both cats and dogs.

How it works: It is administered by gently inserting the syringe into your pet’s rectum (remember to lubricate the tip of the syringe to avoid causing damage to your cat). If you are unsure of how to go about this, request your vet’s assistance in administering the treatment.


Laxative for cats

If your cat has not defecated for a couple of days or is experiencing difficulties passing out stool, you can buy over-the-counter laxatives that are approved for felines. Pet laxatives are classified into either stimulant laxatives or bulk-forming laxatives, depending on how the laxative works.

Stimulant laxatives

These laxatives work by lubricating the digestive tract to make it easier for stool to pass. They are commonly used when the cause of constipation is a foreign object like hairballs blocking the digestive tract.

1. Sentry HC Petromalt

Best laxative for cats

Sentry HC Petromalt is a popular laxative that is used to eliminate and prevent hairballs. Hairballs are formed when cats ingest loose hairs during grooming, and these hairs combined to form round-shaped hairballs.

This laxative may come in a gel form or as syrup, but the thick gel is the most common. Apply it on the cat’s paws, and your cat will continually lick and ingest the gel. This will stimulate the digestive tract, thus allowing the hairballs to pass through.

Alternatively, this laxative may be administered orally or added to the feeding bowls during meal times.

Sentry HC laxative may contain corn or barley syrup that may not be ideal for diabetic cats or cats that are allergic to corn or barley.

The laxative is flavored with barley malt to make it enticing to even the pickiest cats.

Active ingredients:

  • Mineral oil
  • Petrolatum
  • Acacia gum
  • Acidified calcium sulfate
  • Barley malt syrup
  • Caramel
  • Glycerin
  • Water, etc.

One feature that most cat owners love about this laxative is the long shelf life. One tube lasts for several months and can be used multiple times to prevent and eliminate hairballs, as long as it has a long expiry period.


Lax-Aire 3oz.

Laxative for constipated cats

Lax-Aire is a popular laxative for constipated cats, and chances are that you have used it or at least heard of it. It contains cod liver oil as one of its ingredients, and this makes it an ideal choice for picky cats. Cod liver oil is a tasty flavor and is used as a treat for kitties’ taste buds.

Apart from cod liver oil, Lax-Aire also contains petrolatum that helps lubricate the intestinal tract to allow for the passage of stool. Other ingredients include soybean oil and peptonized iron. It can be used for dogs and cats, and you should follow the recommended dosage depending on your pet.


Bulk-forming laxatives

These types of laxatives work by absorbing water which helps soften dry stool. This makes bowels movements more frequent, easier to pass through the GI tract, and therefore makes constipation less regular

3. Lactulose

Lactulose is an oral solution that is used as a prescription medication to treat constipation in both cats and dogs. It comes as a yellow unflavored liquid that should be given according to the vet’s prescription and to the pet for whom it was recommended.

This laxative works by increasing the water content in the stool, thereby making them softer and easier to move through the intestinal tract to the rectum. Some cat owners also use Lactulose to treat megacolon in cats.


Home remedies for cat constipation

There are various home remedies that cat parents can try to solve the problem of constipation in their cats. These remedies include:

Water

One of the causes of cat constipation is inadequate water intake. Naturally, cats have a low urge for water and will less likely drink water without being enticed to.

The solution to this is to provide several clean water drink points around the house that the cat can access at any time of day. If the cat is hesitant to drink from the bowls, try using a cat water fountain since the cat will be attracted to the falling water.

Some cats may prefer drinking running water from the sink, and a cat fountain can be a good replacement.

Switch to a canned diet

Switching from a dry diet to a canned meal can also help treat constipation.

Canned cat foods have more than 70% more moisture than dry kibble and this provides enough fluids to help in digestion and easy passage of bowels. Even with the wet food, you should always provide a clean water drinking point.

Add fiber to cat’s diet

A cat may also experience constipation due to the lack of or inadequate fibers in the diet. Fiber works by absorbing water into the GI tract, and this makes the stool bulkier and softer.

This allows for the normal bowel movement without having to strain or cry out while in the litter box. You can purchase a specially prepared high fiber diet or add fibers to the cat food. For example, you can add canned pumpkin into the diet.

Another good source of fiber that you can add to the cat’s diet is powdered psyllium. Psyllium is the husk that covers Plantago seed. It is fiber-rich, and it is used to aid in digestion. Add ¼ to a ½ teaspoonful of psyllium powder to the cat’s diet to help in the easy movement of stool to the rectum.

Trim long-haired cats

Long-haired cats may ingest loose hairs when grooming themselves, and these hairs combine to form a hairball that causes blockage of the intestinal tract.

You should trim the cat’s hairs once or twice per year. Make sure to trim even the backside since the hair may get entangled with the stool inside the anus and result in constipation.

Exercises

Elderly cats and overweight cats often lead a sedentary lifestyle, and this results in various health complications such as constipation.

Keep your cats active by creating an environment that encourages them to jump and play around. If your cat is an indoor cat, you should provide them with cat trees and interactive toys for indoor cats.

NB: These remedies are provided for educational purposes only and they should not be used as a substitute for veterinarian advice. Once you determine that your cat is experiencing constipation, you should consult your vet first to see if the cat needs medical intervention.


FAQs about Feline Constipation

Which cats are at a higher risk of getting constipation?

Constipation is more likely to occur in elderly cats since they are less active and playful compared to the younger “teenage” cats. However, constipation is not limited to the older cats only, and young cats may also get constipation if they are fed a low-fiber diet, are inactive and they don’t drink enough water.

What happens if my constipated cat is not treated?

Continuous constipation places unnecessary pressure on the colon since it means waste will be packed in the colon for an extended period of time. This can result in appetite loss, pain and even vomiting due to the weight exerted on the colon. In extreme cases, the colon can stop functioning and this will affect the cat’s health.

Is constipation a symptom of a more complicated health problem?

Sometimes, constipation may be a symptom of a bigger underlying issue like diabetes or hernia. This is why you should be on the lookout for any symptoms of constipation, and you should seek your veterinarian’s help immediately you detect the problem.

What can I give my constipated cat to help her poop?

First consult your vet immediately before giving your cat any medications. Ideally, the vet may recommend a laxative such as Metamucil, laxatone or Miralax which help soften the cat’s stool. These laxatives are added to the cat’s meals based on your vet’s feeding instructions. Also, entice your cat to drink more water by providing clean water in clean water bowls.

What can I feed my constipated cat?

The first thing you should do is to transition to a balanced diet that has high fibers. For example, you can buy the best cat food for constipation which is specially formulated for constipated cats. Also, you should feed her more canned cat food since it is high in moisture. Make sure to provide clean drinking water that is accessible by your cat at all times.

Is it olive oil a safe remedy for a constipated cat?

Olive oil is mainly ideal for small or mild bouts of constipation and should not be used in ongoing care since it’s a plant oil (and cats require animal fat sources). Add ¼ teaspoonful of olive oil to feeding bowl and mix the olive oil with the cat’s meal. Other home remedies include coconut oil and canned pumpkin.

Conclusion

​Constipated cats go through a lot of discomfort, and this may lead to increased stress levels. Immediately you suspect that your cat may be constipated, you should take immediate action to help ease your cat's pains.

The first step you should do is to talk to your vet to determine if your cat is constipated, or there is a more pronounced problem. The vet may administer an intravenous injection, or recommend you transition to the best cat food for constipation.

The vet may also recommend over-the-counter stool softeners and laxatives that makes it easy to pass stool through the intestinal tract. You can also try homemade remedies that prevent and control constipation in cats.

  • Updated October 6, 2018
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