The maths, with your numbers
No guesswork and no brand chart. This is the same calculation a vet does on paper, so you can check it.
What this means for the bowl
Diamond Naturals Large Breed Adult Dog Chicken & Rice sits in the middle of the 140 dry dog foods we track, at 397 kcal per cup.
To show how much the food matters: a 40 lb spayed or neutered dog needs about 985 kcal a day. That is 2 ½ cups of this food, but 1 ⅞ cups of Purina Pro Plan All Ages Sport Performance 30/20 Salmon & Rice and 3 ⅝ cups of Kirkland Signature Healthy Weight Chicken and Vegetable. Same dog, same day, very different scoops.
A level 8 oz measuring cup holds about 113 g of this kibble. If you have kitchen scales, weighing is more accurate than scooping, because a heaped cup holds noticeably more than a level one.
Diamond Naturals Large Breed Adult Dog Chicken & Rice feeding chart
Daily amounts for healthy adult dogs with no treats, from the label calories and the AAHA 2021 energy factors. Split the amount into meals.
| Weight | Couch dog | Spayed or neutered | Very active |
|---|---|---|---|
| 5 lb 2.3 kg | ⅜ cup44 g | ½ cup59 g | ⅝ cup74 g |
| 10 lb 4.5 kg | ⅝ cup75 g | ⅞ cup99 g | 1 ⅛ cups124 g |
| 15 lb 6.8 kg | ⅞ cup101 g | 1 ¼ cups135 g | 1 ½ cups169 g |
| 20 lb 9.1 kg | 1 ⅛ cups125 g | 1 ½ cups167 g | 1 ⅞ cups209 g |
| 30 lb 13.6 kg | 1 ½ cups170 g | 2 cups227 g | 2 ½ cups283 g |
| 40 lb 18.1 kg | 1 ⅞ cups211 g | 2 ½ cups281 g | 3 ⅛ cups352 g |
| 50 lb 22.7 kg | 2 ¼ cups249 g | 2 ⅞ cups333 g | 3 ⅝ cups416 g |
| 60 lb 27.2 kg | 2 ½ cups286 g | 3 ⅜ cups381 g | 4 ¼ cups477 g |
| 70 lb 31.8 kg | 2 ⅞ cups321 g | 3 ¾ cups428 g | 4 ¾ cups535 g |
| 80 lb 36.3 kg | 3 ⅛ cups355 g | 4 ⅛ cups473 g | 5 ¼ cups592 g |
| 90 lb 40.8 kg | 3 ⅜ cups388 g | 4 ½ cups517 g | 5 ¾ cups646 g |
| 100 lb 45.4 kg | 3 ¾ cups420 g | 4 ⅞ cups559 g | 6 ⅛ cups699 g |
Label values: 397 kcal per cup, 3,499 kcal per kg. Source: diamondpet.com, checked 18 Oct 2026.
Questions
How much Diamond Naturals Large Breed Adult Dog Chicken & Rice should I feed a 50 lb dog?
About 2 ⅞ cups or 333 g a day for a spayed or neutered dog, before treats. That is 1,164 kcal a day divided by the food’s label value. Use the calculator above to adjust for your pet.
How many calories are in Diamond Naturals Large Breed Adult Dog Chicken & Rice?
The label states 397 kcal per cup, 3,499 kcal per kg (checked 18 Oct 2026). Recipes change, so check your bag.
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