A recent news story  reports that the Clean Label Project, a non-profit organization focused on health and transparency in consumer product labeling, tested 530 baby food products for toxic elements and chemicals. The results were not good.
Sixty-five percent of products tested "positive" for arsenic, 36% for lead, 58% for cadmium, and the tests even showed high levels of BPA in “BPA Free” products. These toxins are harmful to infants (and adults), and can lead to developmental delays and permanent damage to the brain, kidneys, liver, bladder, and many other organs in the body. Arsenic and cadmium are known carcinogens while lead, a damaging neurotoxin, accumulates in bone and is released back into the bloodstream when bones develop (a continuous source of exposure) .
All toxin exposure should be limited, especially during infancy and childhood when the brain and other organ development is at its most sensitive.