The present invention relates to an aqueous composition comprising dextrins that are obtained from the partial hydrolysis of starch, definable as partially digestible soluble fibre, and vegetable bran (rich in insoluble and non-digestible fibres) containing from 2% to 10% of pectins. The composition comprises an amount of caloric sugars ≤ 0.5% by weight and is thus classifiable as a composition that is "sugar free" or "with no added sugar". The composition preferably does not contain food additives selected from among thickening agents, humectants, gelling agents, preservatives and gelling activators. The composition preferably has no sweeteners and is flavourless. The invention also relates to a food product comprising the composition of the invention (thus a food product prepared with the composition of the invention) selected from among: a sweet or savoury oven-baked product, a ready-to-use mix that may be used to prepare sweet or savoury oven- baked products, fruit, cereal and/or granola bars, drinks, cold desserts, sweet or savoury sauces, sweet or savoury salad dressings. The invention also relates to a process for preparing the aqueous composition, wherein the dextrins deriving from the partial hydrolysis of starch are mixed with water, heated, have bran added to them and, finally, are again subjected to heating. Alternatively, the dextrins and the bran are added simultaneously to the water in order to obtain a mixture that is heated so as to obtain the composition of the invention with a semi-solid or syrupy consistency.La présente invention concerne une composition aqueuse comprenant des dextrines qui sont obtenues par l'hydrolyse partielle d'amidon, définies en tant que fibre soluble partiellement digestible, et du son végétal (riche en fibres insolubles et non digestibles) contenant de 2 % à 10 % de pectines. La composition comprend une quantité de sucres caloriques ≤ 0,5 % en poids et est donc classée comme une composition "sans sucre" ou "sans sucre ajo