Diamond Maintenance Dry Dog Food
Diamond Maintenance is a dry food for moderately active adult dogs. Its first five ingredients are chicken by-product meal, wheat flour, whole grain ground corn, rice bran, and grain sorghum. According to the guaranteed analysis, we calculated the starch ratio as 46.0%.
- protein
- fat
- fibre
- moisture
- ash, assumed
- starch, derived
Ingredient Wiki
Wheat Flour
Flour milled from wheat, generally with the bran and germ removed.
Whole Grain Ground Corn
Whole corn kernels ground for digestibility, with the bran and germ left intact.
Rice Bran
The bran layer and germ removed from rice during milling.
Grain Sorghum
The grain of the sorghum plant, a gluten-free cereal also known as milo.
Guaranteed
Analysis
As printed on the bag, measured “as fed”
- Calories
- 3,440 kcal/kg
- Crude Protein (min.)
- 22.0%
- Crude Fat (min.)
- 12.0%
- Crude Fiber (max.)
- 4.0%
- Moisture (max.)
- 10.0%
- Starch ratio (calculated)
- 46.0%
351 kcal per cup. This food is 90% dry matter. The conversion alongside removes the water so it can be compared with any other food, wet or dry.
Full Ingredient
Declaration
Exactly as the bag prints it, heaviest first
Chicken by-product meal (a source of glucosamine), wheat flour, whole grain ground corn, rice bran, grain sorghum, dried plain beet pulp, chicken fat (preserved with mixed tocopherols), egg product, dried yeast, natural flavor, flaxseed, calcium carbonate, potassium chloride, salt*The Salt Divider. Ingredients are listed heaviest first, and a dog food needs very little salt, so everything after this point is present in an even smaller amount., DL-Methionine, choline chloride, dried Lactobacillus plantarum fermentation product, dried Bacillus subtilis fermentation product, dried Lactobacillus acidophilus fermentation product, dried Enterococcus faecium fermentation product, dried Bifidobacterium animalis fermentation product, vitamin E supplement, iron proteinate, zinc proteinate, copper proteinate, ferrous sulfate, zinc sulfate, manganese sulfate, copper sulfate, potassium iodide, thiamine mononitrate, manganese proteinate, vitamin A supplement, biotin, niacin, calcium pantothenate, sodium selenite, pyridoxine hydrochloride, vitamin B12 supplement, riboflavin, vitamin D3 supplement, folic acid
Ingredients are listed heaviest first, and a dog food needs very little salt, so everything after the divider is present in an even smaller amount.
| NUTRIENT | AS FED | DRY M. | READING |
|---|---|---|---|
| PROTEIN | 22.0% | 24.4% | TYPICAL |
| FAT | 12.0% | 13.3% | n/a |
| FIBRE | 4.0% | 4.4% | n/a |
| CARB (EST.) | 46.0% | 51.1% | HIGH |
Calculated from the resting energy formula vets use and this food’s actual calorie density. A starting point to adjust from, not a prescription.
Against The Line
Same figures, same method, applied to the rest of the Diamond range and the archive average.
| METRIC | THIS RECIPE | CARE SENSITIVE SKIN | ARCHIVE AVG |
|---|---|---|---|
| PROTEIN, DM | 24.4% | 24.4% | 32.3% |
| CARB, DM | 51% | 51% | 39% |
| STARCH RATIO | 46.0% | 45.5% | 37.84% |
| KCAL / CUP | 351 | 358 | 384 |
No FDA Recalls On Record
We have not matched any FDA recall to Diamond. We check the feed daily and this page updates when that changes. See the recall log
Other Flavours
Protein on a dry matter basis, read the same way.
Diamond Maintenance: adult dog food
This dry recipe is intended for moderately active adult dogs. Chicken by-product meal heads the ingredient list, followed by wheat flour, whole grain ground corn, rice bran, and grain sorghum.
Nutrition and energy
The guaranteed analysis specifies at least 22% crude protein and 12% crude fat, with no more than 4% crude fiber and 10% moisture. Calculated metabolizable energy is 3,440 kcal/kg, or 351 kcal per cup. These are as-fed label values.
Source check
The ingredient declaration, energy values, and analysis below were checked against the US manufacturer page and Chewy on September 17, 2026. Sources: Diamond and Chewy.
Complete guaranteed analysis
As-fed label values. Minimum and maximum limits are shown for each nutrient.
| Crude Protein | 22.0% min |
| Crude Fat | 12.0% min |
| Crude Fiber | 4.0% max |
| Moisture | 10.0% max |
| Methionine | 0.6% min |
| Calcium | 1.0% min |
| Phosphorus | 0.8% min |
| Zinc | 180 mg/kg min |
| Selenium | 0.5 mg/kg min |
| Vitamin A | 10,000 IU/kg min |
| Vitamin E | 150 IU/kg min |
| Glucosamine* | 500 mg/kg min |
| Omega-6 Fatty Acids* | 2.2% min |
| Omega-3 Fatty Acids* | 0.3% min |
| Total Microorganisms* | 80,000,000 CFU/lb min |
*Not recognized as an essential nutrient by the AAFCO Dog Food Nutrient Profiles.