Minerals are inorganic components of the diet, commonly reported collectively on pet food labels as ash. Animals do not have an ash requirement but do have dietary requirements for individual minerals.
- Macrominerals are calcium, phosphorus, sodium, chloride, magnesium, and potassium. These are called “macro” because they are required in relatively large quantities (grams per day) compared to other minerals.
- Microminerals are iron, copper, iodine, zinc, manganese, and selenium. These are called “micro” because they are required in relatively small quantities (micrograms or less per day).
- There are minerals called “ultra-trace” such as chromium and boron; however, the minimum required by dogs or cats has not been determined. Based on the evidence in other species, chromium and boron should probably be included in their diet.