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Baby teeth from children with autism contain more toxic lead and less of the essential nutrients zinc and manganese, compared to teeth from children without autism, according to an innovative study funded by the National Institute of Environmental Health Sciences (NIEHS), part of the National Institutes of Health. The researchers studied twins to control genetic influences and focus on possible environmental contributors to the disease. The findings, published June 1 in the journal Nature Communications, suggest that differences in early-life exposure to metals, or more importantly how a child’s body processes them, may affect the risk of autism.

Article by PCRM. Swapping beef for beans would help the United States reach targeted greenhouse gas emission reductions, according to a report published in Climatic Change. Researchers compared simulated net emissions of legume production, subtracted those from average beef production rates, and used U.S. reduction goals for 2020 as a reference.