A new study finds 95 percent of tested baby foods contain toxic chemicals that lower babies’ IQ, including arsenic and lead.

What it means for babies’ health: The chemicals found in baby food – arsenic, lead, cadmium, and mercury – are neurotoxins that can permanently alter the developing brain, erode IQ, and affect behavior.

Why baby foods contain these toxic heavy metals: These four harmful metals are found in all food – not just baby food. They occur naturally or from pollution in the environment. Crops absorb them from soil and water, and they are even found in organic food. Their presence in baby food raises unique concern, because babies are more sensitive to the toxic impacts.

What parents can do: Some popular baby foods have higher levels, like rice-based snacks, juice, and sweet potatoes. Parents can make five safer baby food choices for 80 percent less toxic metal residue.