Will my voice change as I lose weight?

My parents told me that as I got heavier my voice became deeper. I am no baratone or anything , but I wish I had a more feminine voice. I have sought out a voice coach but she works with singers. My question I need to lose 100 lbs - will this make my voice 'lighter' as well?

We greatly appreciate your interest in helping us build our Q&A database. To discourage vandals from posting garbage, however, we require people to register before posting.