Association between dietary contribution of ultra-processed foods and urinary concentrations of phthalates and bisphenol in a nationally representative sample of the US population aged 6 years and older

PLoS One. 2020 Jul 31;15(7):e0236738. doi: 10.1371/journal.pone.0236738. eCollection 2020.

Abstract

Ultra-processed food consumption has been associated with several health outcomes such as obesity, hypertension, cardiovascular disease and cancer. The deleterious nutrient profile of these products, and the presence of food additives, neoformed contaminants and contact materials such as phthalates and bisphenol may be some of the potential pathways through which ultra-processed food influences disease outcomes. The aim of this study was to examine the association between dietary contribution of ultra-processed foods and urinary biomarker concentrations of parent compounds or their metabolites including Di(2-ethylhexyl) phthalate (ΣDEHP), Di-isononyl phthalate (ΣDiNP), Monocarboxynonyl phthalate (mCNP), Mono (3-carboxypropyl) phthalate (mCPP), Monobenzyl phthalate (mBzP), Bisphenol A (BPA), Bisphenol F (BPF) and Bisphenol S (BPS), in the US. Participants from the cross-sectional 2009-2016 National Health and Nutrition Examination Survey, aged 6+ years, with urinary measures and with one 24-hour dietary recall were included in the study. Ultra-processed foods were identified based on the NOVA classification system, a four-group food classification based on the extent and purpose of industrial food processing. Linear regression was used to compare average urinary creatinine-standardized concentrations across quintiles of energy contribution of ultra-processed foods. Models incorporated survey sample weights and were adjusted for different sociodemographic and life-style variables. Adjusted geometric means of ΣDiNP, mCNP, mCPP, mBzP and BPF increased monotonically from the lowest to the highest quintile of ultra-processed food consumption. As both phthalates/bisphenol and ultra-processed foods have been previously associated with insulin resistance, diabetes, general/abdominal obesity and hypertension, our results suggest the possibility of contact materials in ultra-processed foods as one link between ultra-processed food and these health outcomes. Future studies could confirm findings and further explore these mechanisms of action.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Benzhydryl Compounds / urine
  • Child
  • Cross-Sectional Studies
  • Diet* / adverse effects
  • Diet* / statistics & numerical data
  • Estrogens, Non-Steroidal / urine
  • Fast Foods* / adverse effects
  • Fast Foods* / statistics & numerical data
  • Female
  • Food Additives / adverse effects
  • Food Handling / statistics & numerical data
  • Humans
  • Male
  • Middle Aged
  • Nutrition Surveys
  • Phenols / urine*
  • Phthalic Acids / urine*
  • Public Health / statistics & numerical data
  • Sulfones / urine
  • Young Adult

Substances

  • Benzhydryl Compounds
  • Estrogens, Non-Steroidal
  • Food Additives
  • Phenols
  • Phthalic Acids
  • Sulfones
  • bisphenol F
  • phthalic acid
  • bisphenol S
  • bisphenol A

Grants and funding

This research received funding from Fundação de Amparo à Pesquisa do Estado de São Paulo (Processo n° 2015/14900-9) to CAM and from Fundação de Amparo à Pesquisa do Estado de São Paulo (Processo FAPESP n° 2018/17972-9) to EMS.