I am not sure about the physical effects BUT

1. $15 / a day

2. Forced / obligated / etc... to brush my teeth about 40 times a day. The nic gum leaves a "yellowy tint" and you must be careful.

3. Trying to hide the fact from my wife

Those side effects are bad enough! But I imagine pumping 120 MG of nicotine (even if not smoking) in your body cannot be good fo you.

I must admit some of the greatest experiences of euphoria for me has been popping 2 a coule fo pieces in my mouth after a couple week lay off.

This topic is worse than a topic on food -- I am getting a craving for the gum now. I must leave the topic for a while!!!!!!