http://lpi.oregonstate.edu/infocenter/index.html
http://water.epa.gov/scitech/swguidance/fishshellfish/fishadvisories/index.cfm
http://gicare.com/diets/gluten-free-diet/
http://www.ceceliasmarketplace.com
http://www.lactose.co.uk
http://foodallergies.stanford.edu
http://www.sciencenews.org/pages/sn_arc97/10_18_97/food.htm
http://www.sswahs.nsw.gov.au/rpa/allergy/research/students/1988/AnneSwainPhDThesis.pdf
(see appendices 10 and 11)
http://www.grassrootshealth.net
http://www.grassrootshealth.net/media/download/dip_with_numbers_8-24-12.pdf
http://www.cdc.gov/obesity/data/adult.html