Use of several personal care products appear to increase blood glucose levels in the late second trimester of pregnancy which may increase the risk of gestational diabetes

In August 2019 researchers from the USA published the results of their study to assess the association between the use of personal care products during pregnancy and late pregnancy glucose levels. Personal care products are known sources of endocrine disrupting chemicals, such as phthalates and parabens, and endocrine disrupting chemicals have been linked to pregnancy complications, such as gestational diabetes. A total of 233 pregnant women were included in the study. Information on use of personal care products during the 1st and/or 2nd trimester was collected and blood glucose levels assessed. Results showed that glucose levels were higher in those who used deodorant and a bar of soap during the 2nd trimester than in non-users. However, those who used liquid soap during the second trimester and sunscreen during the 1st trimester had lower blood glucose levels than non-users. In addition the total number of personal care products used in the 2nd trimester was associated with higher glucose levels, the largest difference being 20 mg/dL when comparing individuals who used eight vs no personal care products.

Bellavia A et al. Association of self-reported personal care product use with blood glucose levels measured during pregnancy among women from a fertility clinic. Sci Total Environ. 2019 Aug 9;695:133855. [Epub ahead of print]

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