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[Yerba mate as a safe polyphenolic source during human lactation].

Ana Verónica Scotta1, Mariela Valentina Cortez1, Luciana Orosz2

  • 1Universidad Nacional de Córdoba, Facultad de Ciencias Médicas, Escuela de Fonoaudiología. Ciudad de Córdoba, Córdoba, Argentina.

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Summary

Yerba mate tea is safe for breastfeeding mothers, providing beneficial polyphenols without negatively impacting milk nutrients or maternal health. This study confirms its safety during lactation.

Keywords:
Breast FeedingIlex paraguariensisMaternal NutritionMilk, HumanWomen’s Health

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Area of Science:

  • Human Lactation Research
  • Nutritional Biochemistry
  • Phytochemical Analysis

Background:

  • Limited evidence exists on the safety of yerba mate consumption during breastfeeding.
  • Assumptions about yerba mate's benefits and risks for lactating women are widespread.
  • There is a need for scientific data to guide recommendations for breastfeeding mothers regarding yerba mate intake.

Purpose of the Study:

  • To assess the safety of yerba mate teas for human lactation.
  • To evaluate the impact of yerba mate consumption on maternal nutritional status.
  • To determine if yerba mate intake affects milk biochemistry during postpartum.

Main Methods:

  • A cross-sectional study involving 279 lactating women in Argentina (2013-2020).
  • Data collected included social, reproductive, dietary patterns, and yerba mate intake (phytochemicals).
  • Maternal anthropometrics and milk biochemistry (nutritional, oxidative, tissue markers) were analyzed.

Main Results:

  • Yerba mate consumption varied, with tube-sipped tea being the primary method.
  • These teas were a significant source of hydroxycinnamic acids and flavonoids, contributing over 35% of dietary polyphenols.
  • No adverse effects on maternal anthropometrics or milk nutrients and biomarkers were observed.

Conclusions:

  • Yerba mate is a safe source of polyphenols for lactating women.
  • Consumption of yerba mate does not compromise lactation.
  • Maternal nutritional status was not negatively affected by yerba mate intake.