National Center for Complementary and Integrative Health (NCCIH) Provides research based health information on a several health topics, Herbs at Glance, a series of brief fact sheets that provides basic information about specific herbs or botanical that can be downloaded as a single PDF, or you can download all entries as an eBook. It also provides tips on how to find an integrative practitioner, and how to make wise decisions on using complementary and integrative modalities.
Office of Dietary Supplements (ODS) Provides supplement fact sheets. It produces The International Bibliographic Information on Dietary Supplements (IBIDS) database, which provides access to bibliographic citations and abstracts from published, international, and scientific literature on dietary supplements. Users can choose to search the Full IBIDS Database, a subset of Consumer Citations Only or Peer Reviewed Citations Only.