Short answer
Each maker we checked says one dental chew a day. WSAVA says all treats together should stay under 10% of daily calories. For a 40 lb neutered adult dog that budget is roughly 98 kcal, so one Regular Greenies chew (88 kcal) uses most of it. Type your dog's weight below for the numbers that fit.
Calculate your dog's treat budget
RER = 70 x (weight in kg)^0.75 | daily need (estimate) = RER x 1.6 neutered or 1.8 intact | treat budget = 10% of daily need
These are estimates for a healthy adult dog at ideal weight. Puppies, seniors, pregnant, very active or overweight dogs and dogs with health conditions need a different number from a veterinarian. The calculator runs in your browser and stores nothing.
How the numbers are worked out
Resting energy requirement (RER) is the calories a healthy dog uses at rest. The Merck Veterinary Manual gives the formula as 70 x body weight in kg to the power 0.75 and lists maintenance energy for healthy adult dogs as 1.6 x RER if neutered and 1.8 x RER if intact.2 WSAVA says treats, including chews, should make up less than 10% of a dog's daily calorie intake and advises asking the manufacturer when a calorie count is not on the label.1 The treat budget on this page is 10% of the estimated daily need. We do not know your dog, so the result is a starting point for a conversation with your vet, not a prescription. If you pick "not sure", the calculator uses RER alone, which gives a smaller, more cautious budget.
Chew sizes and calories come from our product database, read from the manufacturer pages cited below (checked on October 13, 2026). We compare published data only. We do not test chews on dogs, and we show no Amazon prices or ratings.
Treat budget and chew calories by dog weight
Static examples for a neutered adult dog (1.6 x RER), so the table works without JavaScript. Each chew cell shows the size the maker lists for that weight, its kcal and the share of the treat budget that one chew uses.
| Dog weight | Daily kcal (est.) | Treat budget (kcal) | Greenies Original | Milk-Bone Brushing | VeggieDent FR3SH | Whimzees Brushzees |
|---|---|---|---|---|---|---|
| 5 lb | 207 | 21 | Teenie: 25 kcal (121%) | Mini: 30 kcal (145%) | Extra Small: 24 kcal (116%) | X-Small: kcal not published |
| 10 lb | 348 | 35 | Teenie: 25 kcal (72%) | Mini: 30 kcal (86%) | Extra Small: 24 kcal (69%) | X-Small: kcal not published |
| 15 lb | 472 | 47 | Teenie: 25 kcal (53%) | Mini: 30 kcal (64%) | Small: 48 kcal (102%) | X-Small: kcal not published |
| 20 lb | 585 | 59 | Petite: 52 kcal (89%) | Mini: 30 kcal (51%) | Small: 48 kcal (82%) | Small: 44 kcal (75%) |
| 30 lb | 794 | 79 | Regular: 88 kcal (111%) | Small/Medium: 65 kcal (82%) | Medium: 75 kcal (95%) | Medium: 87 kcal (110%) |
| 40 lb | 985 | 98 | Regular: 88 kcal (89%) | Small/Medium: 65 kcal (66%) | Medium: 75 kcal (76%) | Medium: 87 kcal (88%) |
| 50 lb | 1,164 | 116 | Regular: 88 kcal (76%) | Large: 100 kcal (86%) | Medium: 75 kcal (64%) | Large: 173 kcal (149%) |
| 70 lb | 1,498 | 150 | Large: 142 kcal (95%) | Large: 100 kcal (67%) | Large: 105 kcal (70%) | X-Large: kcal not published |
| 90 lb | 1,809 | 181 | Large: 142 kcal (79%) | Large: 100 kcal (55%) | Large: 105 kcal (58%) | X-Large: kcal not published |
At a boundary weight (for example exactly 25 lb) the makers' ranges touch or overlap; check the package. Greenies is not for dogs under 5 lb. Whimzees does not publish kcal for X-Small or X-Large on the pages we checked. Kcal for Whimzees S, M and L come from a retailer listing (see Sources), not from the manufacturer page. For small dogs one chew often uses most of the treat budget.
How many dental chews per day?
The feeding guideline recorded from each maker's page is one chew a day. We do not set a different number. The table shows the recorded wording and a link to look for each line on Amazon.
| Line | Manufacturer guideline | Where to look |
|---|---|---|
| Greenies Original | 1 per day | Greenies on Amazon (Greenies Original) |
| Milk-Bone Brushing Chews | 1 per day; reduce food by about 10% daily while feeding | Milk-Bone on Amazon (Milk-Bone Brushing Chews) |
| VeggieDent FR3SH | once daily | VeggieDent on Amazon (VeggieDent FR3SH) |
| Whimzees Brushzees | 1 chew per day; fresh water always available | Whimzees on Amazon (Whimzees Brushzees) |
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Sizes and calories the tool reads
| Line | Size | Dog weight | kcal per chew |
|---|---|---|---|
| Greenies Original | Teenie | 5–15 lb | 25 |
| Petite | 15–25 lb | 52 | |
| Regular | 25–50 lb | 88 | |
| Large | 50–100 lb | 142 | |
| Milk-Bone Brushing Chews | Mini | 5–24 lb | 30 |
| Small/Medium | 25–49 lb | 65 | |
| Large | 50+ lb | 100 | |
| VeggieDent FR3SH | Extra Small | up to 11 lb | 24 |
| Small | 11–22 lb | 48 | |
| Medium | 22–66 lb | 75 | |
| Large | 66+ lb | 105 | |
| Whimzees Brushzees | X-Small | 5–15 lb | not published |
| Small | 15–25 lb | 44 | |
| Medium | 25–40 lb | 87 | |
| Large | 40–60 lb | 173 | |
| X-Large | 60+ lb | not published |
Missing values are written "not published" because the pages we checked (October 13, 2026) do not give them. Nothing is filled in from another size or product.
These four lines are the ones whose size and calorie data we have read. Compare their VOHC status on the VOHC accepted list, see the wider picture on best dental chews, or read the Greenies safety guide for the calorie discussion and a size check. To work out what a pack costs per day, use the cost per day calculator.
Frequently asked questions
How many dental chews can a dog have a day?
The makers of the four lines on this page say one chew a day (Milk-Bone also says to cut food by about 10%). WSAVA adds that all treats together should stay under 10% of daily calories, and for many dogs one chew is already most of that budget.
Is 2 Greenies a day too much?
Greenies says 1 per day. Using the Merck formula, a 40 lb neutered adult needs about 985 kcal a day, so a 10% treat budget is about 98 kcal. One Regular Greenie is 88 kcal and two are 176 kcal, nearly double the budget before any other treat. Ask your veterinarian.
Are Greenies high in calories?
They use a large share of a dog's treat budget. Greenies lists 25 kcal (Teenie), 52 (Petite), 88 (Regular) and 142 kcal (Large). For a 40 lb neutered adult, a Regular chew is about 90% of a 98 kcal treat budget. The label tells owners to reduce the main meal by the same calories.
How many calories does a dog need a day?
It depends on weight, neuter status, age and activity. A common estimate is resting energy 70 x kg^0.75, times 1.6 for a neutered adult or 1.8 for an intact adult (Merck Veterinary Manual). It is an estimate, and your veterinarian can give an exact figure.
Sources
- World Small Animal Veterinary Association: Feeding treats to your dog (June 2024), accessed October 13, 2026. Treats under 10% of daily calories.
- Merck Veterinary Manual: Nutritional Requirements of Small Animals, accessed October 13, 2026. RER formula and 1.6 / 1.8 multipliers for healthy adult dogs.
- Greenies: Original Regular dental treats, plus the Teenie, Petite and Large pages, accessed October 13, 2026. Weight ranges, kcal, 1 per day.
- Milk-Bone: Brushing Chews (Small/Medium page; Mini and Large pages of the same line), accessed October 13, 2026. Sizes, kcal, feeding guideline.
- Virbac: C.E.T. VeggieDent FR3SH, accessed October 13, 2026. Sizes, kcal, once daily.
- Wellness Pet: Whimzees Brushzees, accessed October 13, 2026. Weight ranges and feeding guideline. Whimzees kcal per chew (S, M, L): PetSmart: Whimzees Brushzees listing (not linked), accessed October 13, 2026.
- VOHC: Accepted products, accessed October 13, 2026. For VOHC status on the linked list page.