Table 2. Food composition, expressed as means and standard deviation (SD), of feline foods used in digestibility studies.^*,† .

	All Cat Foods		Dry Cat Foods		Canned Cat Foods
	(n = 227 studies)		(n = 173 studies)		(n = 54 studies)
	Mean	SD	Mean	SD	Mean	SD
Moisture	23.5	29.6	7.1	1.3	76.3	2.2
Protein	27.2	10.4	32.8	3.4	9.5	1.2
Fat	15.3	6.7	18.4	4.2	5.3	1.6
Ash	4.7	3.2	5.7	3.1	1.7	1.0
Crude Fiber	3.0	2.7	3.6	2.8	1.2	1.0
Gross Energy, kcal/kg	4139	1617	5028	299	1292	175

^*All analytical values are expressed as percentage of food as fed, unless otherwise indicated.

^†Food composition of the experimental foods was determined by a commercial laboratory (Eurofins Scientific, Inc., Des Moines, IA) using AOAC methods.