Fuente: WIPO Food Portada The present invention relates to a food diet adjusting device and, more specifically, to a food diet adjusting device capable of taking the desired amount of food and knowing information on food that a user takes when the user uses a food tray in a public place. After inputting information on existing food and storing the existing information in a memory, the user places the adjusting device on the food tray and takes food to get information on an amount and nutrient information of the food. To this end, the present invention matches a food distribution hole of the food tray and a food inlet of the adjusting device, the food can be only distributed and eaten as much as the people desire by displaying food information on an upper end of the adjusting device when the food is distributed, thereby being economically efficient by adjusting food diet of public places without changing an existing food tray. COPYRIGHT KIPO 2019