Is Fluoride Doing More Harm Than Good in Your Body? Fluoride is marketed as safe—but studies link it to thyroid suppression, lowered IQ, pineal gland calcification, and weakened bones over time. It builds up in your tissues, especially the brain and glands, where it may silently disrupt your hormones and nervous system. If you’re drinking tap water or using conventional toothpaste daily, your exposure could be adding up. Detoxing fluoride and switching to fluoride-free products is one step towar