Fig. 1From: Pharmaceutical/food grade titanium dioxide particles are absorbed into the bloodstream of human volunteersIntestinal permeability and absorption. Small molecule permeability (black circles; lactulose:rhamnose excretion) and absorption (black squares; rhamnose:3-O-methyl glucose excretion) ratios. The reference ranges for permeability (dotted line) and absorption (dashed line) are ratios of <0.05, and 0.132 – 0.258, respectivelyBack to article page