| thresholds algo \ features | year first release | general approach |
|---|---|---|
| scandinavian Keyhole | 2007 | 33 categories + subcat.: max/min thresholds are given, for 'bad' and 'good' nutrients |
| EU | 2009 | 13 cat + subcategories: limits for sodium, sugars, sat. fats |
| US-IWG | 2011 | to be limited: sat. fatstrans fatsadded sugarssodium |