An analysis apparatus is provided with: a light emitting part, a light dispersing part, a light detecting part, a storage unit, and a control unit. The light dispersing part disperses first reflected light reflected from a food product when the food product has been irradiated with light from the light emitting part. The light detecting part: generates first detection data by detecting the first reflected light dispersed; and, when a food product sample containing known ingredients is irradiated with light from the light emitting part, generates second detection data by detecting second reflected light reflected from the food product sample and dispersed by the light dispersing part. The storage unit stores a regression formula computed using the second detection data as a parameter. The control unit estimates the ingredients contained in the food product using the first detection data and the regression formula stored in the storage unit.