Cats and Bad Breath: What Are the Natural Remedies?

Bad breath in cats, also known as halitosis, is characterised by an unusual, persistent odour from the cat’s mouth, whether at rest, during meals, or afterwards. It is most often linked to an oral health imbalance: a build-up of plaque, tartar, and gum inflammation. However, other causes are possible, particularly digestive or metabolic ones, such as kidney failure in older cats.

This condition, common from adulthood onward, should not be dismissed as trivial. When detected early, simple solutions can bring lasting improvement in the animal’s oral hygiene. Adopting a suitable routine and using well-tolerated natural remedies can, in many cases, reduce bad breath in cats whilst ensuring their comfort.

The causes of bad breath in cats are varied, but most often stem from an oral or digestive imbalance. Poor oral hygiene, an unsuitable diet or certain medical conditions, such as kidney failure or diabetes, can contribute to the development of persistent odours. Identifying the root cause of the problem enables a targeted approach to be implemented. In cases of bad breath in cats, a natural remedy can complement treatment, provided it is suitable and used with care.

Inadequate oral hygiene

This is the most common cause. The build-up of dental plaque encourages bacterial growth, which causes the odours. Over time, tartar builds up, the gums become inflamed and the smell of the breath changes.

An unbalanced diet

A diet that is too rich, unsuitable or lacking in variety can disrupt digestion and promote fermentation, which has a direct impact on breath.

Digestive or metabolic disorders

Certain disorders of the liver, kidneys or digestive system can also alter the smell of a cat’s breath. A veterinary check-up is therefore recommended to establish an accurate diagnosis.

Bad breath, or halitosis, in cats often comes with other tell-tale signs. Inflammation, infection, digestive problems, or parasitic infections can cause specific symptoms. Identifying them helps you better understand the cause and consider a suitable natural remedy for bad breath in cats. Here are the most common signs to look out for:

• Strong, persistent bad breath: This is often the first sign. The odour may smell like fish, rot, or even ammonia (in cases of kidney failure). You may notice it as soon as the cat opens its mouth, especially when yawning or eating.

• Excessive or frothy drooling: A cat that is drooling more than usual, especially if it keeps its mouth slightly open or frequently licks its lips, may be suffering from pain in its mouth. This excessive salivation may also indicate an ulcer, gingivitis or early-stage periodontitis.

• Redness, swelling or bleeding of the gums: These signs are typical of gingivitis. The gums may become painful, and there may sometimes be traces of blood on dry food, toys or around the mouth.

• Difficulty eating: The cat may chew on one side only, refuse its dry food, or eat only soft foods. This behaviour often indicates localised discomfort, such as a mouth ulcer, a damaged tooth or an infection in the mouth.

• Loss of appetite and weight loss: Chronic pain in the mouth can lead to a loss of interest in food, particularly hard foods or those that are difficult to chew. Over time, this can result in weight loss and a drop in energy levels.

• Unusual behaviour: A cat that avoids being stroked on the head, rubs its mouth with its paw or appears irritable for no apparent reason may be showing signs of discomfort. Some cats become apathetic, whilst others become more anxious.

• Periodontitis and mouth ulcers: If left untreated, simple gingivitis can progress to periodontitis, affecting the ligaments and the structures supporting the teeth. In this case, bad breath becomes very strong, pain sets in, and the teeth may become loose. Ulcers may also appear in the mouth and require prompt treatment.

Bad breath in cats can often be reduced, or even prevented, with an oral hygiene routine. Regular oral care remains the most effective way to limit dental plaque build-up, which often causes persistent odours. Once it has set in, you can treat it with a carefully chosen natural remedy: in cases of bad breath in cats, gentle, targeted solutions can help cleanse the mouth while respecting each animal’s sensitivity.

Propolis oral gel (alcohol-free formula): Known for its purifying properties, this gel made from propolis helps to limit the bacterial growth responsible for unpleasant odours. When applied topically to the gums using a finger cot or a compress, it forms a protective film that soothes and cleanses. Choose a gentle formula designed for cats to avoid adverse reactions. 

Coconut oil (for external use only): Naturally antibacterial, coconut oil can be used as an occasional treatment by applying a very small amount to the gums using a cotton bud. Its gentle action helps to rebalance the oral flora without irritating the mucous membranes. Most cats tolerate it well, provided the amount used is limited and excessive ingestion is avoided.

Fresh parsley (in very small amounts): Rich in chlorophyll, parsley has recognised deodorising properties. Finely chopped, it can be added in small quantities to the cat’s food. Use it occasionally and keep it very limited, as too much can be harmful to cats.

Raw carrots (to nibble on, under supervision): Their crunchy texture helps to gently clean the teeth. Offered in small pieces suitable for a cat’s jaw, they can help limit tartar buildup. Not all cats like them, but they are a simple, natural option for those who do.

Specific dietary supplements: Certain foods formulated for cats’ oral hygiene contain plant extracts or enzymes that help reduce plaque and freshen breath. These supplements, available as powders, gels or specialised kibble, can be incorporated into the cat’s daily diet on the advice of a vet.

Precautions and oral hygiene: To tackle bad breath in the long term, it is essential to establish a suitable oral hygiene routine. Brushing teeth with toothpaste remains the most effective way to reduce dental plaque build-up over time, although it may take time to get used to. In addition, chew toys or dental treats help to clean the teeth naturally through mechanical action. Before introducing a new product or ingredient – particularly in cases of persistent bad breath or sensitive gums. Consult a vet to ensure the product is suitable for your cat and to rule out any more serious underlying causes. 

Preventing bad breath in cats relies on regular oral hygiene and a few simple daily habits. A suitable routine helps to minimise the imbalances that cause odours and effectively complements the use of natural remedies against bad breath in cats:

1. Establish a regular brushing routine: Brushing their teeth once or twice a week, using a suitable toothpaste, helps to limit the build-up of plaque. It is best to get your cat used to this early on, using a finger sleeve or a soft brush.

2. Provide a suitable diet: High-quality dry food, rich in fibre and with a slightly abrasive texture, promotes natural teeth cleaning. Some formulas are specifically designed to support oral hygiene and limit tartar build-up.

3. Encourage chewing: Dental treats or chew toys help reduce food residue and limit plaque build-up. This type of stimulation can also help some cats become more accepting of oral care.

4. Ensure adequate hydration: Water must be clean, fresh and changed daily. Good hydration helps maintain the balance of the oral and digestive flora, particularly in cats fed dry food.

5. Arrange regular veterinary check-ups: An annual check-up helps to identify inflammation, infection or excessive tartar build-up before they become more serious. The vet may recommend a dental scaling if necessary, particularly for adult cats or those prone to dental problems. In addition, certain carefully selected natural remedies can help prevent bad breath in cats, provided they are chosen with care and tailored to the cat’s needs. 

Cats are particularly sensitive to certain substances, notably essential oils, which can be toxic even in very small doses. Therefore, do not use them without veterinary advice. When seeking a natural remedy for bad breath in cats, choose products specifically formulated for cats. Even when they are of natural origin, home remedies must be used with caution, adhering to the recommended dosages and monitoring the animal’s tolerance.

Maintaining good oral hygiene is essential for minimising the occurrence of bad breath in cats. Regular brushing with a specialised toothpaste, combined with a balanced diet and carefully chosen natural remedies, tackles the problem at its source. When detected early, a cat’s bad breath can often be improved with a natural remedy suited to its sensitivity. Regular check-ups with a vet also help to identify any imbalances as soon as they arise and adjust treatment accordingly.

Laetitia is an editorial communications consultant specialising in beauty and wellness content. Passionate about natural cosmetics, she works with committed brands that share her vision of authentic and responsible beauty. Always on the lookout for the latest developments, she enjoys analysing trends and innovations in the sector.