No, any of the health-related information comes from surveys. It does not come from protected health information. In the U.S. we have a law called the health information portability and accountability act, HIPAA, which regulates prescription information and patient-doctor information. This information would have come from a consumer filling out a survey saying they either suffer from allergies or have an interest in allergy products because of someone in the household who does.
On December 6th, 2012. See this statement in context.