A new study shows that low levels of lead have been detected in baby food.

The Environmental Defense Fund found lead in 20 percent of 2,164 baby food samples.  The metal was found most commonly in fruit juices such as grape and apple, root vegetables like sweet potatoes and carrots, and cookies such as teething biscuits.

Lead can be detrimental to child development, causing problems with attention behavior, cognitive development, the cardiovascular system and immune system.