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If we know how the nutritional data for a product is reported, we can normalise that data. And with the normalised data we have a consistent dataset, which can be used to get the real nutritional values. We will normalise on the per 100g values with the formula:
If we know how the nutritional data for a product is reported, we can normalise that data. And with the normalised data we have a consistent dataset, which can be used to get the real nutritional values. We will normalise on the per 100g values with the formula:
−
N<sub>100g</sub> = N<sub>100ml</sub> / sg
+
N<sub>100g</sub> = N<sub>100ml</sub> * sg
In which:
In which:
* N<sub>100g</sub> is the nutritional value per 100g
* N<sub>100g</sub> is the nutritional value per 100g
* N<sub>100ml</sub> is the nutritional value per 100ml
* N<sub>100ml</sub> is the nutritional value per 100ml
−
* sg the specific gravity of olive oils
+
* sg the specific gravity of olive oils, for which I use 0.911
+
The conversion from a volumetric serving to 100ml is:
+
N<sub>100ml</sub> = N<sub>serving</sub> * 100 / size<sub>serving</sub>
+
+
in which:
+
* N<sub>100ml</sub> is the nutritional value per 100 ml
+
* N<sub>serving</sub> is the nutritional value per serving
+
* size<sub>serving</sub> the serving size in ml
=== Categorisation ===
=== Categorisation ===
The first step to categorise each product into each of the groups.
The first step to categorise each product into each of the groups.