A congressional report found many of the products made by the country's largest commercial baby food manufacturers contain significant levels of toxic heavy metals, including arsenic, lead, cadmium and mercury, which can endanger infant neurological development. The report ... from the House Oversight Committee's subcommittee on economic and consumer policy found heavy metals in rice cereals, sweet potato puree, juices and sweet snack puffs made by some of the most trusted names in baby food. Gerber, Beech-Nut, HappyBABY (made by Nurture) and Earth's Best Organic baby foods (made by Hain Celestial Group) complied with the committee's request to submit internal testing documents. Campbell Soup, which sells Plum Organics baby foods, Walmart (its private brand is Parent's Choice) and Sprout Foods declined to cooperate. Although there are no maximum arsenic levels established for baby food ... the FDA has set the maximum allowable levels in bottled water at 10 ppb of inorganic arsenic. Hain ... used many ingredients in its baby foods with as much as 309 ppb of arsenic. Lead levels in baby foods should not exceed 1 ppb. Beech-Nut used ingredients containing as much as 886.9 parts per billion of lead. In addition, Gerber used carrots containing as much as 87 ppb of cadmium and Nurture sold baby foods with as much as 10 ppb of mercury. And even when baby foods tested over companies' internal limits for these heavy metals, they were sold anyway.