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Yes, titanium dioxide is generally safe for human consumption in moderate amounts. It is widely used as a food additive to provide a white, opaque, and smooth texture to foods such as milk, yogurt, and salad dressing. The U.S. Food and Drug Administration (FDA) has classified it as a safe substance. However, excessive consumption or inhalation of titanium dioxide, especially in nanoparticle form, can potentially have harmful effects. Therefore, it’s recommended to consume products containing this substance in moderation. It’s also worth noting that the International Agency for Research on Cancer (IARC) classifies titanium dioxide as a Group 2B carcinogen, which means it's "possibly carcinogenic to humans". This is based on studies showing increased lung tumors in rats associated with inhalation of high concentrations of titanium dioxide dust. Long-term dietary exposure in humans is still subject to ongoing research.
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