Once you've ruled out anything serious, most everyday dog breath comes down to plaque and routine. Here are five things worth actually doing, roughly in order of how much difference they make.
1. Brush — even just a little, even just sometimes
Nothing on this list beats brushing, because it's the only thing that physically removes plaque before it hardens into tartar. You don't need a perfect daily routine. Three times a week, even just running a finger brush along the outside of the teeth for 30 seconds, makes a measurable difference over a month.
2. Dental chews and toys — with realistic expectations
Chews that are textured or ridged can help scrape plaque off as your dog gnaws, similar to how a toothbrush works mechanically rather than chemically. They're a genuine supplement to brushing, not a replacement for it — treat them as the "and" not the "instead of."
3. Water additives and food toppers
Enzymatic water additives (added to their regular water bowl) can help reduce bacteria over time. They're low-effort and worth trying, though the effect is milder and slower than brushing. Look for ones with simple, food-safe ingredients rather than a long list of additives.
4. Fresh, crunchy add-ins
Small amounts of raw carrot or apple slices (no seeds, no core) have a mild scrubbing effect as your dog chews, and the crunch helps dislodge some surface debris. This isn't a fix on its own, but it's a nice habit to build alongside brushing, and most dogs enjoy it.
5. Fresh water, always available
This one's boring but it matters — a well-hydrated mouth produces enough saliva to naturally wash away odor-causing bacteria. If your dog's water bowl sits out for a full day and gets a bit slimy, that's also worth a rinse; a dirty bowl adds its own bacteria back into the mix.
The Fresh Fetch guide has a week-by-week brushing plan for dogs who really don't want their mouth touched.
What to skip
A quick word on what's not worth your money: breath sprays that just mask odor without addressing plaque, and human toothpaste, which often contains ingredients that upset a dog's stomach and shouldn't be used on dogs at all. If you want a paste, use one made specifically for dogs.
This article is general information, not veterinary advice. Check with your vet before introducing new supplements, especially if your dog has existing health conditions.