Abstract: A technique calls attention for a subject to a predetermined disease or to a disorder that is accompanied by a symptom obstructing the subject's daily life. An information providing method includes acquiring personal data of a target customer, determining a segmentation to which the customer belongs based on the data and a classification criterion that is prepared in advance, from plural segmentations each indicating a class that corresponds to the degree of a health condition, and providing health information that corresponds to the segmentation to the customer. The personal data includes pieces of unique data on the target customer. At least one of the pieces of unique data is symptom data that reflects a health symptom of the target customer. The segmentations are classified corresponding to the degrees of the health symptom, and each of the segmentations is correlated with health information prepared in advance corresponding to the health symptom.

Abstract: In an information providing method, purchase data indicating a purchase history of a control customer is acquired, and a merchandise category to which at least one merchandise belongs is determined from the purchase data. In this method, an extent of a potential health symptom of a target customer is further predicted using a health predictive model having the merchandise category to which at least one merchandise included in the purchase history belongs and an extent of the health symptom correlated therein, and the merchandise category. In the method, health information indicating the extent of the predicted health symptom is provided to the target customer.