Table 2.

Result of principal components analysis of dietary intake traits

	Factor 1 (“Healthy,” 22 %)	Factor 2 (“Unhealthy,” 18 %)
Vegetables (d/wk)	0.55	−0.20
Uncooked vegetables (d/wk)	0.55	−0.18
Fruit (d/wk)	0.65	−0.08
Juice (d/wk)	0.61	0.33
Fish (d/wk)	0.53	−0.17
Snack (d/wk)a	0.02	0.69
Fast food (d/wk)a	−0.24	0.62
Soft drink (d/wk)	−0.15	0.61

Results were obtained using varimax rotation with kaiser normalization. In brackets is the percentage of variance explained by the factor. d/wk: days per week. Numbers in the table are factor loadings of the questionnaire items

^aExamples regarding snacks: chips, French fries, peanuts, cheese, cookies, pastry, chocolate, candy. Examples regarding fast food: ready-to-eat frozen meals such as pizza; McDonalds, Burger King, or fried meals. See also supplementary information S1