Helathnotes is a content source for consumer self-care wellness decisions. The Healthnote API consists of two services: the concept service and the element service. The concept service provides metadata on health and wellness concepts and exposes the relationships between concepts. The element service provides content in a contextual, highly-atomized form giving users a different perspective on the content. Ultimately, the API provides access to self-care decision support by condition, nutritional supplement, medicine, diet, and food.