Titanium dioxide (food grade)

Titanium dioxide (E171), a common food additive used as a whitening agent and to enhance texture, has raised concerns due to its potential health impacts.

Studies have found that exposure to titanium dioxide can lead to various toxic effects in animals, including damage to the heart and changes in hematocrit and hemoglobin levels. Additionally, it may influence behavior, increasing compulsive-like actions in male mice. The additive also affects satiation differently depending on diet type, suggesting potential impacts on appetite regulation.

This substance is often found in processed foods, candies, and toothpaste, making its effects relevant to a wide range of consumers. Connections can be made to dietary habits and the prevalence of processed food consumption across different age groups and regions.

While these findings indicate possible health risks, more research is needed to fully understand the impacts on human health given the current limited evidence from animal studies.

Sources

• Food-grade titanium dioxide exposure between age groups and in global regions: a systematic review and meta-analysis. (PMID:39980420)
• Toxicity of orally administered food-grade titanium dioxide nanoparticles. (PMID:33241596)
• Genotoxicity assessment of food-grade titanium dioxide. (PMID:40280399)
• Food-grade titanium dioxide and zinc oxide nanoparticles induce toxicity and cardiac damage after oral exposure in rats. (PMID:37978398)
• Food-grade titanium dioxide decreases hematocrit and hemoglobin and increases compulsive-like behavior in male mice. (PMID:35128702)
• Food-grade titanium dioxide (E171) differentially affects satiation in mice fed a regular or a high fat diet. (PMID:36657699)

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