"Why this product has Nova X?" This a frequently asked question.

At least on Open Food Facts website, we should explain each Nova computation for each product, like we already do for Nutriscore (" -- energy 8 + sat-fat 5 + fr-sat-fat-for-fats 0 + sugars 0 + sodium 0 - fruits 0% 0 - fiber 0 - proteins 5 -- fsa 13 -- fr 13"), but in a more readable way.