ID 302 -
Cynk
PL: Cynk
EN: Zink
Pdf: zinc
Oświadczenie (4)
- Cynk przyczynia się do prawidłowego metabolizmu kwasów tłuszczowych
Oświadczenie (2)
- niezbędne kofaktor w metabolizmie kwasów tłuszczowych, że wpływ na gospodarkę hormonalną
1. Charakterystyka żywności / składnika
The food constituent that is the subject of the claims is zinc, which is a well recognized nutrient and is measurable in foods by established methods. Zinc occurs naturally in foods and is authorised for addition to foods (Annex I of the Regulation (EC) No 1925/20064 and Annex I of Directive 2002/46/EC5). This evaluation applies to zinc 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, zinc, which is the subject of the health claims, is sufficiently characterised.
2.9. Metabolizm kwasów tłuszczowych (ID 302)
The claimed effect is “essential co-factor in fatty acid metabolism that impacts upon hormonal health”. The Panel assumes that the target population is the general population.
The Panel notes that the claimed effect, hormonal health, has not been sufficiently defined in the evidence provided.
The Panel considers that normal metabolism of fatty acids is beneficial to human health.
3. Naukowe uzasadnienia wpływu na zdrowie człowieka -
Zinc is present in all tissues. It has essential structural, regulatory or catalytic roles in many enzymes. It maintains the configuration of a number of non-enzymatic proteins such as pre-secretory granules of insulin, some mammalian gene transcription proteins and thymulin. It facilitates hormone and receptor binding at membrane and nuclear levels, and it may maintain integrity of biomembranes. Consequently zinc participates in gene expression and in the mechanisms and control of major metabolic pathways involving proteins, carbohydrates, nucleic acids and lipids (SCF, 1993; DoH, 1991). Human zinc deficiency symptoms include retarded growth, depressed immune function, skin lesions, skeletal abnormalities, impaired reproductive ability and behavioural abnormalities such as changes in mood, loss of affect and emotional lability, anorexia, dysfunction of smell and taste, irritability and depression (SCF, 2003; EVM, 2002, Cousins, 2006).
3.8. Metabolizm kwasów tłuszczowych (ID 302)
Zinc is necessary for the conversion of linoleic acid to gamma-linolenic acid and the mobilization of dihomogammalinolenic acid for the synthesis of series-1 prostaglandins (IoM 2001, Freake HC, 2006).
The Panel concludes that a cause and effect relationship has been established between the dietary intake of zinc and normal metabolism of fatty acids. However, the evidence provided does not establish that inadequate intake of zinc leading to impaired fatty acid metabolism occurs in the general EU population.
4.7. Metabolizm kwasów tłuszczowych (ID 302)
The Panel considers that the following wording reflects the scientific evidence: “Zinc contributes to normal metabolism of fatty acids”.
5. Warunki i możliwe ograniczenia stosowania oświadczenia
The Panel considers that in order to bear the claim a food should be at least a source of zinc as per Annex to Regulation (EC) No 1924/2006. The target population is the general population. Such amounts can be easily consumed as part of a balanced diet. Tolerable Upper Intake Levels (UL) have been established for zinc as 25 mg/day in adults and to pregnant and lactating woman. For children and adolescents UL was established as 7 mg/day for 1-3 years, 10 mg/day for 4-6 years, 13 mg/day for 7-10 years, 18 mg/day for 11-14 years and 22 mg/day for 15-17 years (SCF 2003).
Warunki i możliwe ograniczenia stosowania oświadczenia
The product must contain no less than 15% RDA
Agency guidance for supplements is that products containing >25mg zinc should carry the label advisory statement "long term intake of this amount of zinc may lead to anaemia"