A large 2019 study found heavy metals in baby foods. Dozens of well-known brands and products were tested. Arsenic, lead, cadmium and mercury were found in 95% of the 13 types of products tested: cereals, snack foods, fruits, juices and vegetables.

Smaller tests have been run but this was a large study of 168 products in 61 brands. "Healthy Babies Bright Futures" study was published in Consumer Reports and many industry journals in October 2019.

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