Health information, products, and services are the three main components of consumer health. Health information comes from various sources and should be timely, relevant, and culturally appropriate. Reliable sources of health information include health books and accredited online sources. Health products include food, drugs, cosmetics, and devices that can be purchased from places like supermarkets and pharmacies. Health services aim to assess individual health conditions through screening, treat diseases, prevent the spread of diseases, and ensure follow up care. Reliable sources of health information and products are licensed professionals with specialized training and education in the health field.