Updated September 25, 2026. Fact-checked against veterinary sources; review by a licensed veterinarian is in progress. See our editorial policy.
Quick answer: Greenies are chewable dental treats that have the Veterinary Oral Health Council (VOHC) seal for helping control plaque and tartar, meaning the maker submitted study data. Like all chews, they should be sized correctly for your dog, given with supervision, and counted toward daily calories. They help but don’t replace brushing or professional dental care.
Using dental chews safely
- Choose the size recommended for your dog’s weight, or larger
- Supervise, especially dogs that gulp
- Give no more than directed
- Count calories, since dental chews can add up
What they can and can’t do
- Can: modestly reduce plaque and tartar and freshen breath
- Can’t: clean below the gumline, treat gum disease, or fix broken teeth
Alternatives and add-ons
- Daily brushing with dog toothpaste (most effective)
- Other VOHC-accepted chews, diets, and water additives
- Professional cleanings under anesthesia when recommended
Signs of dental problems
- Bad breath, red gums, or tartar
- Dropping food or chewing on one side
- Facial swelling
More: home dental care for dogs.
Sources
- Veterinary Oral Health Council (VOHC): Accepted products for dogs
- AAHA Dental Care Guidelines for Dogs and Cats. 2019
This article is for general education and is not a substitute for care from your own veterinarian. Learn about The Pet Vet and our editorial policy.