Breast: Munchkin

Plastic Bottles and Sippy Cups a No No??

Hi, A good friend of mine just told me that all plastic bottles, and sippy cups are no good for your baby. That the only good kind is "Born Free" or glass bottles. Also, that major brands have been banned in Canada? Anyone else no anything about this? This is the first I've heard of it. Apparently the plastic bottles are being attributed to cancer?? Any insight on this topic and it's relevance would be greatly appreciated. I have a little girl who is exclusively breast fed for the most part, BUT when she is left home with Daddy...