TABLE 3.

Results of regression with price per 100 g as a dependent variable and nutrient content and calories as independent variables¹

		Regression results
Nutrient	No. of foods	Standardized β	t	P
Total fat	1346	−0.09	−2.37	<0.05
Polyunsaturated fat	1338	−0.19	−6.45	<0.001
Total carbohydrate	1295	−0.09	−2.81	<0.005
Total sugar	1228	−0.09	−3.34	<0.001
Added sugar	688	−0.10	−2.58	<0.01
Protein	1353	0.47	19.78	<0.001
Calcium	1376	0.12	4.79	<0.001
Iron	1367	0.12	4.79	<0.001
Potassium	1381	0.23	9.18	<0.001
Magnesium	1370	0.17	6.44	<0.001
Vitamin C	873	0.07	2.32	<0.05

¹Data are from the Food and Nutrient Database for Dietary Studies (FNDDS 1.0) (9) and the linked Center for Nutrition Policy and Promotion (CNPP) (10) food prices database. Analyses are based on 1387 foods from 9 food groups as defined by the US Department of Agriculture.