Table 3.

Algorithms used to calculate the E-NRF index scores.

Model	Algorithm	Comment
NRn100kcal	∑i = 1–n (Nutrienti/RDVi) * 100	Nutrienti = content of nutrient i in 100-kcal edible portion; RDVi = recommended daily values for nutrient i
LIM3100kcal	∑i = 1–3 (Nutrienti/MDVi) * 100	Nutrienti = content of limiting nutrient i in 100-kcal edible portion; MDVi = recommended daily values for nutrient i
NRFn.3100kcal	NRn–LIM3	Difference between sums

NRn, nutrient-rich score consisting of n beneficial nutrients dependent on the evaluated E-NRF score; LIM3, limited nutrient score consisting of three nutrients to limit; NRF, nutrient-rich foods score.