ID 39 -
Ryboflawina
PL: Ryboflawina
EN: Riboflavin
Pdf: various food(s)/food constituent(s) that are referring to children’s development
Oświadczenie (4)
- Ryboflawina przyczynia się do utrzymania prawidłowego widzenia
1. Charakterystyka żywności / składnika
The food constituent that is the subject of the health claims is riboflavin (vitamin B2), which is a well recognised nutrient and is measurable in foods by established methods.
Riboflavin occurs naturally in foods and is authorised for addition to foods (Annex I of the Regulation (EC) No 1925/20066 and Annex I of Directive 2002/46/EC7). This evaluation applies to riboflavin 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, riboflavin, which is the subject of the health claims, is sufficiently characterised.
2.9. Utrzymanie prawidłowego wzroku (ID 39)
The claimed effect is “eyes”. The Panel assumes that the target population is the general population.
The Panel considers that maintenance of normal vision is a beneficial physiological effect.
3. Naukowe uzasadnienia wpływu na zdrowie człowieka -
Riboflavin (vitamin B2) is a water-soluble, yellow, fluorescent compound, chemically specified as a 7,8-dimethyl-10-(1'-D-ribityl)-isoalloxazine. The vitamin is a precursor of certain essential coenzymes such as flavin mononucleotide (FMN) and flavin-adenine dinucleotide (FAD). In these coenzyme forms riboflavin functions as a catalyst for oxidation and reduction reactions and electron transport. Riboflavin is thus involved in a wide variety of metabolic pathways, including the biosynthesis and catabolism of amino acids, fatty acids and carbohydrates (IoM, 1998; SCF, 2000; Powers, 2003).
Riboflavin deficiency usually occurs in conjunction with other nutritional deficiencies. Early signs of riboflavin deficiency are soreness and burning of the lips, mouth, and tongue; burning and itching of the eyes; photophobia; and a loss of visual acuity. The most common signs are pallor and maceration of the mucosa at the angles of the mouth (angular stomatitis) and vermilion surfaces of the lips (cheilosis), eventually replaced by superficial linear fissures. The fissures can become infected with Candida albicans, causing grayish white lesions (perlèche). The tongue may appear magenta. Seborrheic dermatitis develops, usually affecting the nasolabial folds, ears, eyelids, and scrotum or labia majora. These areas become red, scaly, and greasy. Rarely, neovascularisation and keratitis of the cornea can also occur, causing lacrimation and photophobia (Bates, 2005; Bender, 2002). Deficiency symptoms also include normochromic, normocytic anaemia associated with pure erythrocyte cytoplasia of the bone marrow (IoM, 1998).
3.9. Utrzymanie prawidłowego wzroku (ID 39)
Riboflavin deficiency can cause conjunctivitis with vascularisation of the cornea and opacity of the lens – the only lesion of araboflavinosis for which the biochemical basis is known. Glutathione is important in maintaining the normal clarity of crystallins in the lens and glutathione reductase is a flavoprotein that is particularly sensitive to riboflavin depletion (Gibney et al., 2002).
The Panel concludes that a cause and effect relationship has been established between the dietary intake of riboflavin and maintenance of normal vision.
4.5. Utrzymanie prawidłowego wzroku (ID 39)
The following wording reflects the scientific evidence: “Riboflavin contributes to the maintenance of normal vision”.
5. Warunki i możliwe ograniczenia stosowania oświadczenia
The Panel considers that in order to bear the claims a food should be at least a source of riboflavin as per Annex to Regulation (EC) No 1924/2006. Such amounts can be easily consumed as part of a balanced diet. Tolerable Upper Intake Levels (UL) have not been established for riboflavin in children, adolescents and adults (SCF, 2000).
Warunki i możliwe ograniczenia stosowania oświadczenia
Minimum 15% RDA per 100g or 100ml or per single servings as per 90/496/EEC