ID 1470 - Bioflawonoidy

PL: Bioflawonoidy
EN: Bioflavonoids
Pdf:

1.4. Flavonoids (ID 1470, 1693, 1920)

The food constituents that is the subject of the claims is bioflavonoids related to the following claimed effects: “vein health”, “antioxidant effect” and “helps maintain a healthy immune system”.
The Panel assumes that bioflavonoids refer to flavonoids.
Flavonoids are polyphenolic substances naturally present in vegetables and fruits, and in their products. The group of flavonoids is large, with several hundred compounds belonging to subgroups of flavanones, flavonols, flavan-3-ols (such as proanthocyanidins), flavonones, isoflavonoids and anthocyanins. Proanthocyanidins are a group of flavan-3-ols ranging from dimers to polymers. Monomeric flavan-3-ols (such as catechin and epicatechin) are not considered proanthocyanidins. There are also differences in the linkages (A- or B-type) between the monomeric units of proanthocyanidins. The flavonoid, including proanthocyanidin, content in different types of berries, fruits and other plants is measurable, but the flavonoid profile varies widely depending on the food source, and may have an impact on the claimed effects considered in this section.
The references provided for the scientific substantiation of these claims included narrative reviews on purified flavonoid fractions (from citrus), on quercetin and related bioflavonoids, and on bioflavonoids in general, on various health outcomes, most of them unrelated to the claimed effects. One systematic review on chronic venous insufficiency (CVI) patients included one trial with French
maritime pine bark extract and one trial with grape seed extract. The Panel notes that from the references provided it is unclear which type of flavonoids is the subject of the claims.
The Panel considers that the food constituent, flavonoids, which is the subject of the claims, is not sufficiently characterised in relation to the claimed effects considered in this section.
The Panel concludes that a cause and effect relationship cannot be established between the consumption of flavonoids and the claimed effects considered in this section.

Warunki i możliwe ograniczenia stosowania oświadczenia

500 to 1000 mg per day / 100-150 mg in case of flavonoids such as proanthocyanidins from grape seeds or pine bark