When it comes to pollutant levels, researchers now say where your tuna was caught can make a huge difference.
Twenty percent of baby food samples were found to contain lead, according to the Environmental Defense Fund. Pediatricians say there's no safe lead level.
Even low levels of lead in kids can cause learning or behavioral problems, but foods with calcium, iron and vitamin C can help reduce the absorption of lead.
Just because you don't use dangerous chemicals in your garden doesn't mean they're not there.