PROBLEM TO BE SOLVED: To provide a food modifier with which gluten-containing food having excellent palate feeling and anti-aging effect can be prepared in a simple production process: and to provide food containing the food modifier.SOLUTION: The food modifier comprising modified gluten powder is obtained by kneading fresh gluten and reducing sugar and drying and pulverizing the mixture. The food containing the modified gluten powder is produced. A method for producing the food modifier comprises: a process of producing the fresh gluten from wheat flour a process of putting the reducing sugar into the fresh gluten while kneading them to obtain reducing sugar-containing kneaded material and a process of drying the reducing sugar-containing kneaded material and pulverizing them to obtain reducing sugar-modified gluten powder.COPYRIGHT: (C)2012,JPO&INPIT【課題】簡易な製造工程で、優れた食感および老化防止効果を有するグルテン含有食品を調製し得る食品改質剤および該食品改質剤を含む食品を提供すること。【解決手段】本発明は、生グルテンと還元糖とを混練し、乾燥、粉砕することによって得られる、改質グルテン粉末を提供する。また、上記改質グルテン粉末を含む食品を提供する。さらに、小麦粉から生グルテンを得る工程、該生グルテンに還元糖を練りこみ、還元糖含有混練物を得る工程、該還元糖含有混練物を乾燥、粉砕して還元糖改質グルテン粉末を得る工程を含む、食品改質剤の製造方法を提供する。【選択図】なし