Mercury toxicity. Mercury is just one poison that either interferes with TMG production in the body, or increases the body’s need for this amazing chemical.
The problem of mercury toxicity is so widespread that I laugh when people want to be tested for mercury poisoning. I tell them everyone is mercury toxic today because mercury is so widely distributed in the environment. Some are more toxic than others with mercury, but we are all subject to it. If you eat any fish or seafood, toxicity will be much worse. If you have silver/mercury dental amalgams, you will also likely have more of it. Mercury can contribute to hundreds of health conditions. For more on mercury, read Mercury Toxicity on this site.