New study reveals widespread Titanium dioxide contamination in milk
A recent study has unveiled concerning levels of titanium dioxide (TiO2) contamination in milk products, posing potential risks for infants and nursing mothers. Conducted by INRAE (Institut national de la recherche agronomique), in collaboration with the SOLEIL Synchrotron, Lariboisière Hospital in Paris and the CNRS (Centre national de la recherche scientifique), the research provides a comprehensive analysis of titanium dioxide particle composition across various milk samples (i.e. human, animal and infant formula milk).
The findings reveal that TiO2 nanoparticles were present in 100% of animal milk samples, including both organic and conventional varieties, whether fresh or powdered, sourced from cows, donkeys, and goats. Additionally, 83% of infant formulas tested—spanning three different age ranges and including commercially produced organic and conventional options—were found to contain these nanoparticles.
The analysis detected staggering concentrations of TiO2 particles, ranging from 6 million to 3.9 billion particles per liter in infant formula, and 16 to 348 million particles per liter in animal milk. This data underscores the widespread nature of titanium contamination in milk products.
Importantly, the study confirmed that titanium dioxide can cross the mammary gland barrier, as evidenced by the presence of TiO2 particles in human milk samples taken from ten volunteers residing in or near Paris. The concentration of titanium varied significantly among participants, with some samples exhibiting up to 15 times more TiO2 than others.
These results are particularly concerning given the ban on titanium dioxide as additive (E171) in food products, which raises questions about alternative sources of titanium exposure. The research suggests that dietary habits, as well as the use of cosmetics and medications containing titanium, may contribute to this contamination.
Future studies are planned to further characterize the TiO2 particles identified in milk, including their size and crystalline forms. Understanding the potential toxicity of these nanoparticles is crucial, especially for vulnerable populations such as infants who rely heavily on milk for nutrition during their formative years.
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