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171 bytes added ,  11:10, 16 December 2020
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=== Canonical nutritional values ===
 
=== Canonical nutritional values ===
 
Many products use, what seems as, standard canonical values for nutritional values. The canonical values for energy (wikipedia) are 3700 kJ or 880 kcal. The products use 900 kcal instead. In total there are [https://world.openfoodfacts.org/cgi/search.pl?action=process&tagtype_0=categories&tag_contains_0=contains&tag_0=Olive%20oils&nutriment_0=energy-kcal&nutriment_compare_0=gt&nutriment_value_0=890&nutriment_1=energy-kcal&nutriment_compare_1=lt&nutriment_value_1=910&sort_by=unique_scans_n&page_size=20 1957 products] with this value.
 
Many products use, what seems as, standard canonical values for nutritional values. The canonical values for energy (wikipedia) are 3700 kJ or 880 kcal. The products use 900 kcal instead. In total there are [https://world.openfoodfacts.org/cgi/search.pl?action=process&tagtype_0=categories&tag_contains_0=contains&tag_0=Olive%20oils&nutriment_0=energy-kcal&nutriment_compare_0=gt&nutriment_value_0=890&nutriment_1=energy-kcal&nutriment_compare_1=lt&nutriment_value_1=910&sort_by=unique_scans_n&page_size=20 1957 products] with this value.
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The distribution shows this effect even more clearly:
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[[File:OliveOilsKcalDistribution20201216.jpg|thumb|center|Energy (kcal) distribution for olive oils (16 dec 2020)]]
    
Looking at the other products these seem not to reflect the real product. Knowing this we can split the olive oils in two groups: one with the canonical values and one with the real(?) values.
 
Looking at the other products these seem not to reflect the real product. Knowing this we can split the olive oils in two groups: one with the canonical values and one with the real(?) values.
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