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Nutrients handling in Open Food Facts: Difference between revisions
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* when the energy is written in both, there is no simple conversion ratio between kcal and kJ | * when the energy is written in both, there is no simple conversion ratio between kcal and kJ | ||
** This is because labelling laws in EU, US, CA etc. specify that the energy fields can (or must) be computed by multiplying and summing values for carbohydrates, proteins, fat etc. | ** This is because labelling laws in EU, US, CA etc. specify that the energy fields can (or must) be computed by multiplying and summing values for carbohydrates, proteins, fat etc. | ||
** That's why we now store 2 energy fields, and not just one | |||
** see https://esha.com/calorie-calculation-country/ for details | ** see https://esha.com/calorie-calculation-country/ for details | ||
* energy-kj and energy-kcal are the identifiers (nutrient-id) of the "Energy in kJ" and "Energy in kcal" fields. | * energy-kj and energy-kcal are the identifiers (nutrient-id) of the "Energy in kJ" and "Energy in kcal" fields. | ||