To simplify the nutrient content information, scores have been calculated for all foods: “for whether they are a high source (+++), source (++), present, but low source (~), or not a source, for the respective nutrient. To do so, mean values of recommended nutrient intake data (RNI) of men and women, were calculated based on FAO/WHO references (FAO/WHO, 2004). Thereafter, the percentage of RNI of iron, folate, vitamin C and vitamin A provided by 100 g of the respective food was calculated. The thresholds for whether the respective food is a high source, source, present, but low source, or not a source of the selected nutrient, are based on FAO/WHO food labelling standards and own adaptions (FAO, WHO, 2007).

Explanation of SCORES

Minerals and vitamins (except vitamin C)

+++	++	~	1	2
high source	source	present, but low source	not a sources	no data available
≥ 30 % of RNI	15-29% of RNI	5-14% of RNI	< 5 %	ND (no data available)
FAO/WHO (2007)	FAO/WHO (2007)	own adaptation	own adaptation	own adaptation

The thresholds for "high source" and "source" are based on FAO/WHO (2007): Codex Alimentarius Commission, Food Labelling. Fifth edition. Rome. Recommended nutrient intakes (RNI) used in the calculation of the scores are based on FAO, WHO (2004): Vitamin and mineral requirements in human nutrition: report of a joint FAO/WHO expert consultation. Second edition. WHO, FAO.

Vitamin C

+++	++	~	1	2
high source	source	present, but low source	not a sources	no data available
≥ 100 % of RNI	40-99% of RNI	10-39% of RNI	< 10%	ND (no data available)
own adaptation	own adaptation	own adaptation	own adaptation	own adaptation