Compliance Program Guidance Manual: Domestic Food Safety (FY07-08) [online]. FDA. November 9, 2008, p. 6, "Be aware that the following color additives are not on the list for use in food products in the United States. a. Amaranth (C.I. 16185, EEC No E123, formerly certifiable as FD&C Red No 2)". Dostupné online.
cfsan.fda.gov
FDA/CFSAN - Color Additives Fact Sheet [online]. web.archive.org, 2001-11-17, [cit. 2022-12-06]. Dostupné online. Archivované 2001-11-17 z originálu.
Why Red M&M's Disappeared for a Decade [online]. Pricenomics, [cit. 2016-08-16]. Dostupné online.
time.com
TIME Magazine [online]. web.archive.org, 2005-01-11, [cit. 2022-12-06]. Dostupné online. Archivované 2010-04-04 z originálu.
usda.gov
ams.usda.gov
Overview of Food Color Additives, Prepared for the USDA National Organic Program and the National Organic Standards Board [online]. Agricultural Marketing Service (United States Department of Agriculture). Dostupné online. Archivované 2010-03-09 z originálu.
web.archive.org
FDA/CFSAN - Color Additives Fact Sheet [online]. web.archive.org, 2001-11-17, [cit. 2022-12-06]. Dostupné online. Archivované 2001-11-17 z originálu.
Overview of Food Color Additives, Prepared for the USDA National Organic Program and the National Organic Standards Board [online]. Agricultural Marketing Service (United States Department of Agriculture). Dostupné online. Archivované 2010-03-09 z originálu.
TIME Magazine [online]. web.archive.org, 2005-01-11, [cit. 2022-12-06]. Dostupné online. Archivované 2010-04-04 z originálu.