. >>> carrie jaffey has three young children. and she's careful about what they eat. that means only foods that are packaged without bpa. >> this is something that could affect our children now and for the rest of their lives. >> reporter: bpa is the industrial chemical, bisphenol a, it's used in all kinds of food containers, from baby bottles to tin cans. and it could be a health risk, particularly for children and pregnant women. >> she will take it through her body and pass it through to her baby, where it can cause terrible damage to the baby. >> reporter: our recent study looks specifically at the effect of bpa in children under 3. it found the chemical can change their behavior, making them anxious or hiern active. -- hyperactive. >> reporter: many companies, including campbell's soup, have already started changing it out. but they say the government needs to carefully vet the alternative. >> the problem is, we don't know if those substitutes are safe or unsafe, for the simple reason that they haven't been properly tested. >> reporter: 49 years ago, when- - nine

. >> reporter: carrie jaffey has three young children. and she's careful about what they eat.hat means only foods that are packaged without bpa. >> this is something that could affect our children now and for the rest of their lives. >> reporter: bpa is the industrial chemical bisphenol a. it's used in all kinds of food containers, from baby bottles and tin cans. and it could be a health risk, particularly for children and pregnant women. >> she will take it from her body and pass it to the baby, where it can cause terrible damage to the baby. >> reporter: a recent study looks specific at -- specifically at the effect of bpa. it found the chemical contains their behavior, making them anxious or hyperactive. >> reporter: many companies, including campbell's soup, have already started phasing it out. but phillip landrig an says the government needs to start regulating it. >> the problem is, we don't know if those are safe or unsafe. >> nine years ago, when her oldest child was a baby, carrie jaffey didn't know about the possible risks from bpa. >> i feel very concerned that i in