ID 146 -
Witamina C
PL: Witamina C
EN: Vitamin C
Pdf: vitamin C
Oświadczenie (2)
- promuje antyoksydacyjne działanie luteiny
1. Charakterystyka żywności / składnika
The food constituent that is the subject of the health claim is vitamin C (L-ascorbic acid, ascorbate), which is a well recognised nutrient and it is measurable in foods by established methods.
Vitamin C occurs naturally in foods. Ascorbic acid and its salts (ascorbates) are the forms authorised for addition to foods and for use in food supplements (Annex II of the Regulation (EC) No 1925/20065 and Annex II of Directive 2002/46/EC6). This evaluation applies to vitamin C naturally present in foods and those forms authorised for addition to foods (Annex II of the Regulation (EC) No 1925/2006 and Annex II of Directive 2002/46/EC).
The Panel considers that the food constituent, vitamin C, which is the subject of the health claim, is sufficiently characterised.
2.2. Funkcja antyoksydacyjna luteiny (ID 146)
The claimed effect is “promotes the antioxidant function of lutein”. The Panel assumes that the target population is the general population.
The Panel notes that no evidence is provided to establish that having antioxidant activity per se is beneficial to human health.
The Panel considers that the benefit to human health of the promotion of the antioxidant function of lutein is unknown.
3. Naukowe uzasadnienia wpływu na zdrowie człowieka -
The evidence provided by consensus opinions/reports from authoritative bodies and reviews shows that there is good consensus on the role of vitamin C in the body (Bender, 2003; Garrow et al., 2000; IoM, 2000; NNR, 2004; Sadler et al., 1999; Shils et al., 2006; EVM, 2002). Vitamin C is an electron donor, or reducing agent, and its functions are attributable to this action (Shils et al., 2006). On the one hand, vitamin C acts as a major free-radical scavenger in the body, and as electron donor (and cofactor) for eight human enzymes, three of which participate in the biosynthesis (and cross-linking) of collagen and other components of the connective tissue, two of them are required in the biosynthesis of carnitine, one in tyrosine metabolism and two in the biosynthesis of the catecholamines adrenaline and noradrenaline (which act as neurotransmitters) and in the amidation of peptide hormones.
3.2. Funkcja antyoksydacyjna luteiny (ID 146)
One reference was cited to substantiate the claimed effect which is a human intervention study investigating the effects of vitamin C co-supplementation on crystalline lutein supplement absorption (Tanumihardjo et al., 2005).
The Panel concludes that a cause and effect relationship has not been established between the dietary intake of vitamin C and the promotion of the antioxidant function of lutein.
Warunki i możliwe ograniczenia stosowania oświadczenia
Must meet minimum requirements for use of the claim "source of [name of vitamin/s] and/or [name of mineral/s)" as per Annex to Regulation 1924/2006.
Agency guidance for supplements is that products containing >1000mg vitamin C should carry the label advi