Effects of artificial colors on hyperkinetic children: A double-blind challenge study

Psychopharmacology bulletin (Impact Factor: 0.5). 05/1978; 14(2):39-40.
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    • "Swanson and Kinsbourne (1980) found that performance on a paired‑associate learn‑ ing task deteriorated after adminis tration of a color mixture challenge. Goyette et al. (1978; see also Conners et al. 1976) identified 3 of the 16 children they assessed as responders by their performance on a visual tracking task. Even the FDA review observed that measures confined to ADHD symptoms may not reflect responses evoked by food colors. "
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    ABSTRACT: The proposition that synthetic food colors can induce adverse behavioral effects in children was first enunciated in 1975 by Feingold [Why Your Child Is Hyperactive. New York:Random House (1975)], who asserted that elevated sensitivity to food additives underlies the signs of hyperactivity observed in some children. Although the evidence suggested that some unknown proportion of children did respond to synthetic food colors, the U.S. Food and Drug Administration (FDA) interpreted the evidence as inconclusive. A study published in 2007 [McCann et al. Food additives and hyperactive behaviour in 3-year-old and 8/9-year-old children in the community: a randomised, double-blinded, placebo-controlled trial. Lancet 370:1560-1567 (2007)] drew renewed attention to the hypothesis because of the study's size and scope. It led the FDA to review the evidence, hold a public hearing, and seek the advice of its Food Advisory Committee. In preparation for the hearing, the FDA reviewed the available evidence and concluded that it did not warrant further agency action. In this commentary I examine the basis of the FDA's position, the elements of the review that led to its decision and that of the Food Advisory Committee, and the reasons that this is an environmental health issue. The FDA review confined itself, in essence, to the clinical diagnosis of hyperactivity, as did the charge to the committee, rather than asking the broader environmental question of behavioral effects in the general population; it failed to recognize the significance of vulnerable subpopulations; and it misinterpreted the meaning of effect size as a criterion of risk. The FDA's response would have benefited from adopting the viewpoints and perspectives common to environmental health research. At the same time, the food color debate offers a lesson to environmental health researchers; namely, too narrow a focus on a single outcome or criterion can be misleading.
    Environmental Health Perspectives 09/2011; 120(1):1-5. DOI:10.1289/ehp.1103827 · 7.98 Impact Factor
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    ABSTRACT: There is still no persuasive evidence that intolerance of food additives is a major cause of hyperactivity. Eliminating additives from the diet is an arduous procedure, which will not help most children with behaviour disorders - not, at any rate, in ways large enough and lasting enough to be clinically important. Evidence from challenge studies and from clinical anecdotes suggests that the diet might prove to have helpful effects for a minority of children (especially those under 6 yr). This requires confirmation; no mechanism is known, and there is no reason to think that any effect is specific to hyperactive behaviour. What adivce should be given to families containing a severely restless and impulsive child? On present evidence, the diet should not be recommended as a routine clinical procedure. Some families - probably an increasing number - will decide to try it nonetheless. The clinician's job then will often be that of supervising an experimental treatment. This implies a duty to monitor change with sufficient care to allow a sensible judgement. The use of a placebo control is probably the clearest way to make such a decision.
    Journal of Child Psychology and Psychiatry 11/1979; 20(4):357-63. DOI:10.1111/j.1469-7610.1979.tb00521.x · 6.46 Impact Factor
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