Griesing's organization vigorously fought the move to phosphate-free until Washington State passed a law in March 2006 limiting the amount of phosphates in household dishwasher detergent sold in that state to 0.5%, or a trace amount, effective July 1, 2010 (in most of the state).

FORBES: Magazine Article

The trace amount is not enough to cause illness, USDA officials said, and is of no special concern.

CNN: South Korea finds some U.S. beef tainted

"This is very exciting, clearly, because here we have somebody who can have anaphylaxis and deadly reaction from trace amounts, and you're converting this person into somebody who can tolerate a significant amount of the food, " said Dr. Anna Nowak-Wegrzyn, associate professor of pediatrics at Mount Sinai Medical Center in New York.

CNN: 'Exciting' advance reported in peanut allergy therapy