They are not really comparable — they do fundamentally different things. Greenies are dental chews designed to mechanically clean teeth and reduce tartar. Stewart liver treats are high-value training rewards. You probably need both; choosing between them assumes a trade-off that most dog owners do not actually face.
In this article
What each product is actually for
Greenies are VOHC (Veterinary Oral Health Council) accepted dental chews. The VOHC seal means independent testing showed the product reduced plaque or tartar by at least 10% in a controlled study. They are designed to be chewed slowly, with the texture providing mechanical abrasion against tooth surfaces. They are not training treats.
Stewart liver treats are single-ingredient, freeze-dried beef liver with no added ingredients. They are consumed in 1–3 seconds and are specifically used for behavioral training, recall work, and high-value positive reinforcement. They provide no meaningful dental benefit.
Ingredient and nutrition comparison
| Stewart Beef Liver | Greenies Regular | |
|---|---|---|
| Ingredients | Beef liver | Wheat flour, wheat gluten, glycerin, gelatin, water, lecithin, natural flavor, vitamins, minerals, chlorophyll |
| Single ingredient? | Yes | No — 15+ ingredients |
| Grain-free? | Yes | No — contains wheat |
| Calories per treat | ~4 kcal | ~54 kcal (regular size) |
| Dental VOHC accepted? | No | Yes |
| Training frequency use? | Practical | Not practical (calorie-dense) |
Which is better for dental health
Greenies, by a significant margin. The VOHC acceptance is earned through actual clinical data, not marketing. The texture is specifically engineered for dental cleaning action. Freeze-dried liver treats are too brittle to provide meaningful mechanical dental cleaning — they shatter immediately rather than providing sustained chewing friction against tooth surfaces.
If dental health is your primary concern, Greenies (or another VOHC-accepted dental chew) is the right tool. Daily use as directed by the packaging is appropriate for dental maintenance between professional cleanings.
Which is better for training
Stewart liver treats, by a large margin. At 4 kcal per piece (versus 54 kcal for a regular Greenie), you can give 13 liver treats for the calorie cost of one Greenie. Greenies take 2–5 minutes to fully consume, making them impossible to use for repetition-based training. Liver treats disappear in seconds and can be given dozens of times per session.
For grain-allergic dogs, Stewart also wins on ingredients — Greenies contain wheat, which rules them out entirely for dogs on grain-free diets or with wheat sensitivity.
Can you use both?
Yes, and this is what most dog owners who care about both training and dental health do. One Greenie per day for dental maintenance (follow package sizing recommendations by dog weight). Stewart liver treats as needed for training sessions, within the 10% calorie budget. The two products occupy different functional niches and do not compete meaningfully for the same purpose.
If budget is a constraint and you can only buy one type of treat, decide based on your current priority: is behavioral training or dental maintenance the more pressing concern for your dog right now?