Key findings – Data from the National Health Interview Survey, 2012. NCHS Data Brief, Number 146, April 2014 Use of nonvitamin, nonmineral dietary supplements (17.9%) was greater than any other complementary health approach used by U.S. adults in 2012. The use of practitioner-based chiropractic or osteopathic manipulation was nearly twice as high in the West North Central region… Continue Reading