The Journal of Pediatrics. 1979. June; 94(6):944-5
Trying to find a reason why some children respond well to the Feingold Diet and others don’t, Brenner measured copper and zinc levels in the blood of 20 children who had responded well to the diet, and 14 who had not. There was a significantly higher level of copper in the children who did respond to the diet.
Dr. Brenner suggests that certain food additives may enhance the absorption of copper from the intestinal tract, or may increase its toxic effects in those children.
