Evaluation of nutrient content and caloric density in commercially available foods formulated for senior cats

. 2020 Jul 10;34(5):2029–2035. doi: 10.1111/jvim.15858

	Adult maintenance
	NRC 2006⁵ minimum requirement/adequate intake	NRC 2006⁵ safe upper limit	AAFCO 2019⁴ minimum concentration	AAFCO 2019⁴ maximum concentration
Protein (g/1000 kcal ME)	40	n/a	65	n/a
Fat (g/1000 kcal ME)	22.5	82.5	22.5	n/a
Carbohydrate (g/1000 kcal ME)	n/a	n/a	n/a	n/a
Phosphorus (g/1000 kcal ME)	0.35	n/a	1.25	n/a
Calcium (g/1000 kcal ME)	0.4	n/a	1.5	n/a
Magnesium (g/1000 kcal ME)	0.05	n/a	0.1	n/a
Potassium (g/1000 kcal ME)	1.3	n/a	1.5	n/a
Sodium (mg/1000 kcal ME)	160	>15 g/ kg dry matter	500	n/a
Iron (mg/1000 kcal ME)	20	n/a	20	n/a
Manganese (mg/1000 kcal ME)	1.2	n/a	1.9	n/a
Copper (mg/1000 kcal ME)	1.2	n/a	1.25	n/a
Zinc (mg/1000 kcal ME)	18.5	>600 mg/kg dry matter	18.8	n/a
Vitamin D3 (IU/1000 kcal ME)	56	7520	70	7520