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2,220 bytes added ,  12:38, 13 October 2022
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== Introduction ==
The Diets taxonomy is one of the taxonomies that could be added to OFF. The idea is to have a list of basic, relative simple diets, that are maintained by OFF. The definition of a diet is not mixed the other taxonomies.

== Use cases ==
* Food preferences, as is now used by OFF.
* Allergen warnings
* Food selection in shops (6 seconds decisions).

== Definition ==
A diet can be defined in relation to the ingredients, categories and labels on a product. Does the product contain ingredient X? Does the product have an Ecoscore D or better? Etc. A diet can be described in terms of entries in the taxonomies. The basic idea is to determine how compliant a product is to a diet.
=== Compliant levels ===
Depending on the diet it might me needed to have two(?) or more levels of. If we use 5 levels, it is possible to fit most diets.

Compliance levels:
* Certified compliant - a third party checks a product and practices and declares conformance, for instance Afdiag for gluten free or the European Vegetarian Union for a vegan diet;
* Claimed compliant - a producers puts a label on the product, which claims that it is compliant. For instance a label like "Suitable for Vegetarians";
* Compliant - no ingredients and labels could be found that indicate non-compliance
* Possibly non-compliant - the ingredients fit with the diet, but traces indicate that it might not be compliant;
* Non-compliant - there are ingredients or labels that do not fit the diet;

=== Worst to best ===
When calculating the level of compliance one should start at the worst (non-compliant) and rule that option out. And move upwards to certified compliant. In case of contradictions, use the worst.

== Usage ==
This is not in use by OFF. But has been implemented in FoodViewer and [http://www.sivas.com/hoveringabove/pleasenogarlic/ PleaseNoGarlic]

== Maintenance ==
Maybe some special moderation is needed to keep the diets true to their goals.

== Ideas ==
It is always possible to add more diets. In fact there is no limit. A diet can be very personalised and be a combination of the above.

== Remarks ==
There is a XML-file available with 27 diet definitions.
[[Category:Diets Taxonomy]]
[[Category:Taxonomies]]
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