Most of the tiny plastic bits found in sea salt from India are super small—like, smaller than a millimeter—so our bodies might absorb them more easily.

What we've found so far suggests that microplastic particles in Indian sea salts are very small—most are smaller than a millimeter—and the evidence we've reviewed leans toward these particles being small enough that the body might absorb them [1]. Our analysis of the available research shows that the tiny plastic fragments detected in Indian sea salt fall into the microplastic range, which means they measure less than 1 millimeter in size. Because of their small size, these particles could potentially be absorbed by human tissues, though we don’t yet have direct evidence showing exactly how or to what extent this happens in the body [1]. The evidence we’ve reviewed comes from 26 supporting assertions, all pointing to the presence of these very small plastics in sea salt. No studies we analyzed refuted this. Still, our current analysis is limited to what has been reported so far, and we can’t say for sure how much absorption occurs or what long-term effects, if any, this might have. We also don’t yet know how these microplastics get into sea salt or whether different brands or regions have higher or lower levels. What we can say is that because the particles are so small, the possibility of bodily absorption is a realistic concern based on size alone. As we continue to review new studies, our understanding may improve. For now, the evidence highlights that microplastics are present in Indian sea salt at sizes that raise questions about human exposure. Practical takeaway: If you’re concerned about microplastics, it may be worth considering the source of your sea salt—or looking for brands that test for contaminants—even though we don’t yet know the full health impact.