A Vet’s Guide to the Best Dog Food for Anal Gland Issues

Some dogs never experience anal gland problems, while others seem to suffer repeatedly. The reason isn't usually one single factor – anal gland health is influenced by several things that broadly fall into three categories:

• Breed and anatomy – the shape and position of the anal glands and surrounding tissues.  Some breeds are much more predisposed to problems than others, with Cavalier King Charles Spaniels and Cockapoos being at most risk.
• Medical conditions – including allergies, dietary intolerances, infections, obesity, and repeated over-expression, which can cause scarring of the ducts and make normal emptying more difficult.
• Diet and stool quality – firm, bulky stools help the glands empty naturally during defecation.
  

We can't change a dog's anatomy, but we can improve many of the factors we can control. Maintaining a healthy body weight, treating any underlying medical conditions, avoiding unnecessary anal gland expression, and feeding a diet that promotes firm, well-formed stools can all help support healthy anal gland function.

Key Takeaways

• Anal gland problems have many causes, including anatomy, allergies, obesity, medical conditions and poor stool quality.
• Diet supports anal gland health mainly by producing firm, bulky, well-formed poops that encourage natural gland emptying.
• A blend of fibre types and ingredients that support the gut microbiome can help maintain healthy digestion and consistent stools.
• There is no single “best” food for every dog—the right diet depends on the underlying problem, such as allergies, obesity, constipation or diarrhoea.
• The goal is a balanced food that suits your individual dog and produces healthy poops consistently, while addressing any underlying medical problems with your vet.
  

Nutritional Recommendations for Dogs with Anal Gland Problems

There have been very few studies investigating which diets best support anal gland health. However, understanding how the anal glands empty naturally allows us to make sensible nutritional recommendations.

To help reduce the risk of anal gland impaction, a diet should promote:

• Firm, bulky stools.
• Good faecal water content and volume.
• A short rectal transit time, so stools don't remain in the rectum for longer than necessary.
  

There is currently no scientifically established ideal fibre level for dogs with recurrent anal gland problems, although veterinary nutritionists have proposed diets containing around 5–10% functional fibre. Fibre sources such as cellulose, beet pulp and psyllium are thought to be particularly beneficial.

Supporting the gut microbiome is also important, as a healthy microbiome helps maintain consistent stool quality. Look for prebiotic ingredients such as beet pulp, psyllium, chicory root (inulin) and apple pectin, which help nourish beneficial gut bacteria while supporting healthy digestion.

How does fibre help with anal glands?

Fibre is broadly divided into insoluble and soluble fibre, and both play an important role in producing healthy stools.

Insoluble fibre adds bulk to the stool, helping create the pressure needed to naturally empty the anal glands during defecation.

Soluble fibre absorbs water to form a gel, helping regulate stool consistency by firming loose stools and softening stools that are too hard.

Some fibres are also fermentable (prebiotic) fibres. These nourish beneficial gut bacteria, which produce short-chain fatty acids that support the intestinal lining, reduce inflammation and promote healthy, consistent stools. Examples include beet pulp, chicory root, apple pectin and psyllium.

The best diets combine all three functions: adding stool bulk, regulating stool consistency and supporting a healthy gut microbiome.

Can Food Cause Anal Gland Issues in Dogs?

In an indirect way, yes. Feeding the wrong diet for your dog can lead to digestive upset, an unbalanced gut microbiome and poor stool quality. If stools are consistently too soft or too small, they may not generate enough pressure to empty the anal glands naturally.

For some dogs, the wrong diet may also trigger food allergies or sensitivities, resulting in chronic digestive inflammation and softer stools, which further increases the risk of anal gland impaction.

Feeding the right meal to support healthy digestion, a balanced gut microbiome and firm, well-formed stools is one of the best ways to help reduce recurrent anal gland problems. Maintaining a healthy body weight is also important, as obesity is a recognised risk factor.

In severe or recurrent cases of anal gland impaction, surgery may sometimes be considered if medical management and dietary changes have not resolved the problem.

Ingredients to Avoid

Ingredients to avoid are those that your dog is sensitive or intolerant to, as these can trigger digestive upset and lead to softer stools that don't empty the anal glands effectively.

Common dietary triggers for diarrhoea include sudden diet changes, rich or fatty foods and dairy products. Some dogs may also have specific food allergies or sensitivities, so these should be avoided once identified. Introducing a new food gradually over 7–10 days can help reduce the risk of digestive upset and support healthy stool quality.

It's also worth considering the overall ingredient list rather than focusing on individual additives. The best food is one that your dog tolerates well and consistently produces healthy, well-formed poops on.

Ingredients to look out for

Look for nutrients that support a healthy digestive tract and promote firm, well-formed stools. A balanced blend of fibre types is ideal, including ingredients such as psyllium, beet pulp, chicory root (inulin) and apple pectin or apple pulp. These fibres help improve stool quality while supporting a healthy gut microbiome. Some diets also contain probiotics, which can further support digestive health and a balanced microbiome.

How Diet Supports Anal Gland Health

The best food for anal gland health is one that suits your dog and consistently produces firm, well-formed poop. As your dog defecates, the passing stool applies pressure to the anal glands, helping them empty naturally. Feeding a balanced food that supports a healthy gut microbiome and contains an effective blend of fibres helps produce healthy poop and, in turn, supports normal anal gland function.

Choosing the Right Food for Anal-Gland Issues

Food for Allergy Signs

If your dog is allergic or intolerant to a specific ingredient, a diet trial of at least 8 weeks, guided by your vet, is usually needed to identify the trigger. In dogs with adverse food reactions, the offending ingredient is most commonly a protein source. Once identified, you can choose a food containing a safe protein or a hydrolysed protein diet, which is often the best option for dogs with confirmed food allergies. If allergies, infection or another medical condition is contributing to the anal gland problems, medicine may also be needed alongside dietary changes.

Food for Overweight and Obese dogs

Overweight and obese dogs are at higher risk of anal gland problems than dogs of a healthy weight.  This is due to fat around the anus compressing the anal sac ducts, stopping them from emptying as easily.  Also, dogs suffering from obesity may have reduced anal sphincter tone. For overweight dogs, they will benefit from a low fat or satiety diet which helps them to feel fuller for longer. Ask your vet team for help with a weight loss programme, as frequent weigh ins often leads to more success.

Food for Dogs with Constipation

A repeatedly or severely constipated dog should always be examined by a veterinarian, particularly if they are straining to defecate, showing signs of pain or vomiting. If your vet determines that the constipation can be managed with hydration and nutrition, increasing fibre and soaking kibble before feeding can help. This provides additional water while increasing stool bulk, helping your dog pass stools more easily and supporting natural anal gland emptying.

Constipation can become more common in senior dogs, so persistent changes in bowel movements should be discussed with your vet rather than simply adding fibre to their diet.

Food for Dogs with Diarrhoea

There are so many causes of diarrhoea in dogs that you need a veterinary visit and investigations to work out the cause.  Nutrition may help but your vet will advise you depending on the cause of the diarrhoea. Often in acute, infectious causes of diarrhoea, we advise a bland diet, such as a gastrointestinal diet, or a food for “sensitive stomachs.”

What treats or supplements can I give to help my dog’s anal gland health?

With anal gland and digestive problems, as always, a visit to your vet for a proper diagnosis is paramount.  If your vet recommends supplementing your dog’s fibre intake, you can try using Scooch’s Anal Gland supplement which provides an exellennt level of mixed fibre types, prebiotics, and natural anti-inflammatory ingredients to help all round gut and anal gland health.

For treats, choose a low-calorie treat, such as Scooch’s training treats. They contain fibre and are low in calories to prevent weight gain while supporting your dog’s training and health.

Monitor Your Dog’s Response to the Diet Change

It is vital to change your dog’s diet slowly, over approximately 7-10 days. Add a little bit more of the new diet to the old each day, slowly tapering away the old food. 

To monitor your dog’s response to diet change, look out for stool quality and quantity, ease of defecation (especially in cases with constipation), how often they are scooting, licking their back end, any pain or discomfort or looking around quickly at their back end, as if they’re being chased.  Record how often their anal glands require manual expression and whether this is becoming less frequent.

Conclusions

The best diet for your dog’s anal gland health is one that supports your pet to have firm, formed poos most of the time.  There will be times when your dog gets an upset stomach, but a stool with good consistency most of the time is what we are aiming for. This diet should be a balanced, nutritionally complete and appropriate for the life stage of your pet.

Best Anal Gland Foods FAQs

What are anal glands?

Anal glands are two small sacs on either side of your dog’s anus that secrete a smelly substance that coats a dog’s faeces upon defecation.  The scent allows dogs to communicate who they are to other dogs.

What Causes a Dog’s Anal Glands to Fill Up?

Anal glands should express when your dog does a poo, but many things can cause this process to be less efficient.  These include obesity, allergies, chronic diarrhoea or constipation, breed and anatomy, amongst others.

How do I stop my dog's glands from filling up?

By looking after your dog’s gut health and ensuring they are having well formed stools daily, their anal glands are likely to look after themselves. However, if your dog is suffering from anal gland problems, seek veterinary help to guide you how to help.  You may need to have your dog’s anal glands expressed, but routine expression isn’t without its downsides.

How do dogs act when their glands are full?

There are some tell-tail signs of anal glands filling up.  They include dog’s scooting their bottoms across the floor, excessively licking their back end and turning quickly and looking at their bottoms as if being chased.

Can dogs clear their own glands naturally?

Yes, anal glands normally empty, at least in part, as a dog passes a stool. However, if there is a problem and the anal gland has become impacted, your dog will need help to express its glands.

How can I express my dog's glands naturally?

By knowing what is causing your dog’s anal gland problems, you can reduce the chances of impactions occurring by giving your pup the best diet for their condition, and supplementing their diets with ingredients that will help them.  

Do carrots help dogs' glands?

Foods with a good mixture of fibre can help to firm up, or soften your dog’s bowel movements, and therefore help to express anal glands naturally.

What breeds are prone to gland issues?

Small breeds are particularly prone to anal gland issues, and among larger breeds, Labradors and German Shepherds are highly represented.

Is it safe to give dogs pumpkin every day?

This depends on the effect the pumpkin is having.  Canned pumpkin has an excellent blend of fibre types so it can help to loosen firm stools to relieve constipation, and firm up loose stools through its soluble fibre content. However, every day might be too miuch of a good thing, so it should be used until your dog’s stools are a healthy conssitency and then stopped.

Which is better for dog constipation, pumpkin or sweet potato?

There is no clinical research in favour of one over the other, but pumpkin is mentioned in veterinary literature more than sweet potato as a helpful, at home supplement for dogs with constipation. However, neither sweet potato nor pumpkin is superior to a high fibre diet and adequate hydration.