Enclosed you may find the IMPLEMENTING REGULATION (EU) 2016/854 document.
Please read here.
Condition of use is indicated on page 5 in the ANNEX.
Claim: consumption of foods/drinks containing <name of all used non-digestible carbohydrates> instead of sugars induces a lower blood glucose rise after their consumption compared to sugar-containing foods/drinks.
Conditions of use of the claim: In order to bear the claim, sugars should be replaced in foods or drinks by non-digestible carbohydrates, which are carbohydrates neither digested nor absorbed in the small intestine, so that foods or drinks contain reduced amounts of sugars by at least the amount referred to in the claim REDUCED [NAME OF NUTRIENT] as listed in the Annex to Regulation (EC) No 1924/2006.
Sugar reduced means; 30% sugar is replaced by Chicory root fiber/inulin/oligofructose compared to the reference product or similar full sugar reference of the market place
This Regulation shall enter into force on the twentieth day following that of its publication(31-05-2016) in the Official Journal of the European Union.
This Regulation shall be binding in its entirety and directly applicable in all Member States.
In addition to the authorized 13.5 health claim, general health-related well-being claims under article 10.3 are also possible along with the main claim, such as "lower and more balanced blood glucose rise".