I will be honest: before I started working at Within, I had never really thought about my dog's teeth. She seemed fine. Her breath was questionable, but I assumed that was just... dogs. It wasn't until I dug into the research behind our dental chew formulation that I realised how much I had been missing, and how common that blind spot is among dog owners.

The reality is that dental disease is one of the most widespread health problems in dogs, it is largely preventable, and most of us are doing almost nothing about it. Let me share what I have learned.

The scale of the problem

By the age of three, around 80% of dogs show some signs of dental disease. That is not a fringe statistic. That is the majority of adult dogs walking around with periodontal problems that their owners have no idea about.

Dental disease does not just mean bad breath. It starts with a build-up of plaque, a sticky film of bacteria that forms on the tooth surface after every meal. Left unchecked, plaque hardens into tartar (also called calculus), which provides the ideal environment for bacteria to multiply along the gum line. This leads to gingivitis, then periodontitis, then in serious cases bone loss, tooth loss and chronic pain.

The connection to wider health matters too. The oral microbiome is directly linked to the gut microbiome via the digestive tract. Chronic oral bacterial imbalance does not stay in the mouth. There is growing evidence linking poor dental health in dogs to systemic inflammation, and in severe cases to organ health, particularly the heart and kidneys.

So no, it is not just about freshening breath. It is a whole-body health issue.

Why most dogs do not get proper dental care

The honest answer is: because it is inconvenient. Daily toothbrushing is the gold standard, but most dogs tolerate it reluctantly at best. Regular professional dental cleans under general anaesthetic are effective but costly, stressful for the dog, and carry their own risks as dogs get older.

That gap between what is ideal and what is practical is exactly where a well-formulated daily chew can do real work. Not as a replacement for brushing if your dog accepts it, but as a consistent, daily habit that supports the oral environment even on the days when life gets in the way.

What makes a dental chew actually effective

Not all dental chews are created equal. Many on the market are essentially flavoured biscuits with a vague claim about freshening breath. The ones that earn their place are formulated around ingredients with a genuine mechanism of action.

Within's Advanced Dental Chews contain a specific combination of active ingredients designed to work on the oral environment from multiple angles:

Ascophyllum nodosum (Dried Algae): 100mg per chew

This is the ingredient with the strongest evidence base in canine oral health. Ascophyllum nodosum is a brown seaweed that has been studied specifically for its ability to reduce plaque and tartar formation in dogs. It works by inhibiting the enzyme activity that allows oral bacteria to stick to tooth surfaces. Studies have shown measurable reductions in plaque and calculus scores in dogs receiving it daily. At 100mg per chew, Within's dental chews deliver a meaningful dose of this ingredient every single day.

Epicor(R): 70mg per chew

Epicor(R) is a Saccharomyces cerevisiae fermentation product with a strong independent evidence base. A 60-day in-home study across 348 dogs found that dogs supplemented daily with Epicor(R) were 211% more likely to show improvement in breath odour compared to the control group (P=0.007). That is not a marginal difference. Breath odour is one of the most direct indicators of the bacterial environment in the mouth, and a 211% improvement in owner-observed breath scores tells a meaningful story about what is happening at a microbial level.

The same study also found that supplemented dogs were 95% more likely to receive a higher immune health rating over the course of 60 days, and 67% more likely to receive an improved mobility rating. Oral health does not exist in isolation, and the Epicor(R) research reflects that.

Citrus and Cranberry Extract: 50mg each

Citrus extract provides a natural source of Vitamin C, supporting gum tissue integrity and the body's antioxidant defences in the oral cavity. Cranberry extract is well established for its ability to prevent bacterial adhesion, the same mechanism by which it supports urinary tract health. In the mouth, it helps prevent the biofilm formation that leads to plaque build-up. Together, these two ingredients support gum health and the oral microbiome from a different angle to the seaweed.

Peppermint Leaf (20mg) and Parsley Leaf (20mg)

These are the natural breath-freshening ingredients. Peppermint is one of the most well-evidenced natural deodorisers. Parsley contains chlorophyll and volatile compounds that have long been used to neutralise odour. Neither of these is a cosmetic afterthought: they work alongside the active ingredients to address both the source of the problem (bacterial balance) and the symptom most owners notice first (bad breath).

The FormulaBiotics(TM) connection

Every Within supplement chew also carries our FormulaBiotics(TM) blend: the combination of prebiotics, postbiotics, antioxidants, vitamins and minerals that runs through our entire range. The oral microbiome and the gut microbiome are connected. Supporting both, consistently, is the Within approach.

It is also worth noting that Epicor(R) is itself a postbiotic, which means the dental chews sit squarely within the same science that underpins FormulaBiotics(TM). This is not a collection of unrelated ingredients. It is a joined-up formulation with a clear nutritional logic.

How to build the habit

The dental chews are designed to be fed daily in one sitting, alongside your dog's regular food. Dosing is based on your dog's weight: refer to the on-pack feeding guide for the correct number of chews per day. Allow four to six weeks of consistent daily feeding to see optimum results, particularly for breath and plaque improvements.

For dogs who already have visible tartar build-up, it is worth speaking to your vet about a professional clean before starting a daily maintenance routine. The chews work best as a preventative and maintenance tool once the slate is clean.

What to look for in a dog's mouth

Most owners do not regularly check their dog's teeth, so here are the key things to watch for:

Yellow or brown deposits on the teeth (particularly near the gum line) indicate tartar build-up. Red or swollen gums suggest inflammation. Persistent bad breath beyond the normal post-meal window is often the first owner-noticed sign of bacterial imbalance. Reluctance to chew hard food or toys can indicate dental discomfort. If you are seeing any of these signs, it is worth raising them at your next vet appointment.

Starting a daily dental routine does not have to be complicated. A chew a day, formulated with the right ingredients, makes a real difference over time. Your dog's teeth and, as the research suggests, a lot more besides will thank you for it.