Americans spent $30.2 billion — $28.3 billion for adults and $1.9 billion for children — out-of-pocket on complementary health approaches, according to a nationwide survey. These approaches include a group of diverse medical and health care systems, practices, and products such as herbal supplements, meditation, chiropractic, and yoga. This amount represents 9.2 percent of all out-of-pocket spending by Americans on health care and 1.1 percent of total health care spending.

These findings come from an analysis by the National Center for Complementary and Integrative Health (NCCIH) and the Centers for Disease Control and Prevention, based on data from a special supplement — on use of complementary health approaches — to the 2012 National Health Interview Survey (NHIS). The NHIS is a large survey conducted annually by CDC’s National Center for Health Statistics. NCCIH is part of the National Institutes of Health.