Titanium Dioxide Most people are aware of heavy metals like mercury and aluminum…But almost no one talks about the “silent metal” that hides in supplements, pills, toothpaste, and processed foods: Titanium dioxide (TiO₂). And its effects on the gut are rarely discussed — even in functional health circles. Below is what current science actually shows about this overlooked compound 🧬 1. Titanium Dioxide Accumulates in Peyer’s Patches Peyer’s patches are your gut’s immune surv