A meal detection method executed by a processor of a computer, the meal detection method includes acquiring first sensing data from a first sensor configured to detect a motion of an arm of a target person acquiring second sensing data from a second sensor configured to detect a heart rate of the target person calculating a first evaluation value indicating likelihood that a meal is being performed based on a first feature amount extracted from the first sensing data calculating a second evaluation value indicating likelihood that the meal is performed based on a second feature amount extracted from the second sensing data and determining whether the target person has eaten the meal or not, based on the first evaluation value and the second evaluation value.