ID 829 -
Błonnik z otrębów pszennych
PL: Błonnik z otrębów pszennych
EN: TRITICUM SATIVUM-WHEAT BRAN-WHEAT
Pdf: wheat bran fibre
1. Charakterystyka żywności / składnika
The food constituent that is the subject of the health claims is “wheat grain fibre”, “wheat bran and wheat bran products”, and “Triticum aestivum – wheat bran”. The Panel assumes that the active food constituent is wheat bran fibre.
Wheat bran fibre is a component of wheat bran, which consists of the outer coat (pericarp, testa and aleuron layer) of the wheat grain (Triticum aestivum L). Wheat bran is separated from the other parts of the wheat kernel by milling and the chemical composition of wheat bran varies with the extraction rate. Wheat bran is predominantly composed of non-starch polysaccharides (∼38 %), starch (∼19 %), protein (∼18 %) and lignin (∼6 %), with the non-starch polysaccharides being primarily ∼70 % arabinoxylans, ∼19 % cellulose and ∼6 % β-(1,3)/β-(1,4)-glucan. Wheat bran typically contains approximately 45 % of dietary fibre, of which about 95 % is non-soluble fibre (Cornell and Hoveling, 1998; Pomeranz, 1988). Wheat bran products may differ with regard to chemical composition and particle size depending on the milling process.
The Panel considers that the food constituent, wheat bran fibre, which is the subject of the health claims, is sufficiently characterised.
2.3. Udział w utrzymaniu lub osiągnięciu prawidłowej masy ciała (ID 829)
The claimed effect is “weight control”. The Panel assumes that the target population is the general population.
Weight management can be interpreted as the contribution to the maintenance of a normal body weight. In this context even a moderate weight loss in overweight subjects without achieving a normal body weight is considered to be a beneficial physiological effect.
The Panel considers that contribution to the maintenance or achievement of a normal body weight is a beneficial physiological effect.
3. Naukowe uzasadnienia wpływu na zdrowie człowieka -
Forty seven studies were cited for the scientific substantiation of two claimed effects: “increase in faecal bulk” and “reduction in intestinal transit time”.
Several studies were considered as not being pertinent for the scientific substantiation of the claimed effects evaluated in sections 3.1 and 3.2: a study with patients with severe constipation following spinal cord injury (Cameron et al., 1996), a study measuring the effect of wheat bran on faecal bile acid concentration (Alberts et al., 1996) and publications targeted for the general public (Medical News Today; Mindell, 1994). The Panel considers that no conclusions can be drawn from these references for the scientific substantiation of the claimed effects. The data from two references were identical (Fuchs et al., 1976; Floch and Fuchs, 1978) and were treated as one study. The text of the unpublished study was not available to the Panel (Dodi, unpublished).
3.3. Udział w utrzymaniu lub osiągnięciu prawidłowej masy ciała (ID 829)
None of the references provided for the scientific substantiation of the claimed effect addressed the effect of consumption of wheat bran fibre on maintenance or achievement of a normal body weight.
One human study submitted for the scientific substantiation of another claim evaluated in this opinion (ID 828) dealt with the effect of a formula diet providing 692 kcal per day, consisting of 50.7 g of protein, 13.6 g of fat and 91.3 g of carbohydrates, and containing 14.3 g of wheat bran and 3 g of apple pectin, on the reduction of body weight in eight obese subjects (Matzkies et al., 1982). The Panel considers that no conclusions can be drawn from this study for the scientific substantiation of the claimed effect.
The Panel concludes that a cause and effect relationship has not been established between the consumption of wheat bran fibre and contribution to the maintenance or achievement of a normal body weight.
Warunki i możliwe ograniczenia stosowania oświadczenia
Bakery products with ≥6g/100g of wheat grain fibre
