I did, but since my youngest was a baby 7 years ago and I nursed for the first 6 months, my reasons for choosing glass over plastic were not environmentally charged. I just liked the way I could control the temperature of the milk better when heating it up, so it was similar to what my baby was used to from nursing.

Nowadays, many moms and dads are choosing glass bottles because the plastic ones may contain a harmful substance -- bisphenol A, or BPA, a component of the polycarbonate plastic in some baby bottles and sippy cups that can leak into the milk and cause health problems, according to FDA studies. These studies also show that even low doses of BPA can cause neural and behavioral effects, and possibly lead to obesity, decreased fertility and some cancers. On the flip side, many scientists conclude that the data suggesting BPA is harmful to babies is simply inconclusive due to the fact that most studies are based on animal trials, not human trials. This Time magazine article covers both sides of the issue fairly well.

So, what will it be for your baby: glass or plastic? If I knew then what I know now, I probably would not take the risk. Then again, I chose glass for an entirely different reason in the first place. Knowing this would have only offered additional support for that decision.