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Rat food contamination study questioned – Expert Reaction

Posted in Science Alert: Experts Respond

A new study reports that the near-ubiquitous contamination of  ‘chow’ used to feed rats in experiments maybe causing spurious results in toxicology studies. However independent experts say the results may in fact show the opposite –  that there is no cause for concern.

chowThe study, published today in PLOS ONE, examined GMO content and the levels of pesticides, heavy metals and other contaminants in 13 varieties of laboratory rat food from around the world. To varying degrees, they identified contaminates in all samples.

Combining the potential health effects of the contaminants in a measure called a summed health quotient, the authors say many of the diets could be toxic to rats and causing misleading results in animals studies, especially toxicological studies.

However a number of independent experts say the measures used in the study and the conclusions drawn by the authors may be misleading, and that more experimental research is need to prove their hypothesis.

Continue reading “Rat food contamination study questioned – Expert Reaction

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