Fact or Fiction?

I would love your feedback on this topic, my friends.

There has been so much talk about there being Fluoride in the tap water (at least in the States) over the last few years. Can't help but wonder if is true or not. We (my family) did have our water tested and found out we had a high level of TDS (Total Dissolved Solids) in our water supply. But I came to realize that they never actually addressed our concern over Fluoride. Now, let me first say that since we got a filtration system we have noticed a HUGE difference while showering, running the dishwasher, etc. But...is Fluoride really an issue or is it just a "conspiracy theory"? Please let me know in the comments below!

CJ