Monthly Archives: May 2015


I recently went to the dentist to have a routine cleaning performed. They know me and asked IF I wanted a fluoride treatment. I responded “no”, not because I have strong teeth, they are actually quite sensitive, but for other reasons.

Having access to functional lab testing I had run a 24 hour urinary halides test a few months earlier, interestingly, I was sufficient in Iodine, normal, if there is a normal on bromine and high in fluoride.
So, where was I getting the fluoride from? In our home we use reverse osmosis water with a whole house chlorine filtration system, which should theoretically remove most of the fluoride from our chloramine treated public water. Perhaps toothpaste?
There was a recent initiative proposed to decrease the public water fluoride concentration from .7-1.2 to no more than .7.

Why was this passed? Due to an increase in fluorosis or spots and pitting on teeth from extra fluoride consumption.
I present this because too much fluoride is known to compete with another necessary halide known as Iodine or Iodide.

Why do we need iodine and how does it relate to fluoride? For a healthy thyroid, we know that insufficient iodine can lead to goiter and thyroid problems. With our love of Chlorine in our water supplies and pools, as well as the increased use of Bromine in baked goods and flame retardants(products like Gortex and children’s PJ’s). These all compete with iodine and may therefore can decrease thyroid function.

Thyroid function is important as we age but it is also important as we develop. There are several studies which have been published that correlate low iodine with lower IQ’s in children.

So what are some things that you can do? Consider decreasing fluoride and bromine exposure. Be sure your children completely spit any extra toothpaste out, if you choose to use fluoride toothpaste(Use a fluoride free toothpaste). If you have fluoride water consider not getting extra fluoride exposure at the dentist. Consider an effective filtration system to remove extra fluoride.

The topic of fluoride in drinking water is quite widely debated. I present just the iodine consideration, but there are other concerns including increased risk of hip fracture, arthritis and perhaps association with increased risk of cancers. I encourage everyone to investigate the pros and cons of its use and advocate appropriately in your communities.
The following is a link which describes some of the controversies in fluoride use: