Impact of Perinatal Exposure to Non-caloric Sweeteners on Food Preferences and Weight Gain in the First Year of Life

May 31, 2019 updated by: Martin Gotteland, University of Chile

Determination of Perinatal Exposure to Non-caloric Sweeteners. Implications for the Development of Preferences for Sweet Taste, and Weight Gain During the First Year of Life

During last years, non-caloric sweeteners (NCSs) have been increasingly incorporated into foodstuffs in replacement of sucrose in Chile. This situation has reached a point where it is currently difficult to find sugary foods without NCSs. As a result, the voluntary and involuntary consumption of these additives is growing significantly in the population, increasing the risk of exceeding the acceptable daily intake (ADI), especially for children. This situation is worrying as recent evidence suggests that NCSs are not inert in the body and can trigger adverse metabolic effects. For example, the consumption of beverages with NCSs has been shown to favor the development of obesity and type-2 diabetes in children and adults, and a recent study reported that the intake of NCSs during pregnancy was associated with a greater weight gain of the child at one year. It is likely that certain NCSs pass into the amniotic fluid and that the fetus is exposed to some of these compounds during pregnancy. This situation would persist in the infant through breast milk, as some studies detected sucralose and acesulfame-K in this fluid, even in mothers who claimed not to consume them. However, the real impact of NCS exposure during the neonatal period on the child health has been few studied. Therefore, the aim of this study is to determine the concentration of NCSs in samples of amniotic liquid and breastmilk and to correlate these data with the NCS intake by the mothers. Mothers/children will be classified in quintiles according to the results obtained. In the children from quintiles 1 and 5, we will also study whether neonatal exposure to NCSs may affect the sweet taste threshold and the preferences for this taste, the levels of salivary insulin and the weight gain in the first year. Breastmilk microbiota and child fecal microbiota will be also evaluated.

Study Overview

Study Type

Observational

Enrollment (Anticipated)

315

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 40 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

315 dyades mother/child recruited at the San Jose Hospital Maternity

Description

Inclusion Criteria:

  • Women with at least 36 weeks of gestation
  • Spanish-speaking
  • Elective cesarean delivery

Exclusion Criteria:

  • Multiple pregnancy
  • Type-2 diabetes
  • Intelectual disability
  • Presence of infectious disease compatible with chorio-amnionitis or immunosupression
  • Newborns with serious pathologies affecting their growth

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Mothers with breastmilk NCSs
Time Frame: One month post-partum
Proportion of mothers with detectable NCSs in their breastmilk
One month post-partum

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Mothers with amniotic liquid NCSs
Time Frame: At delivery
Proportion of mothers with detectable NCSs in their amniotic liquid
At delivery
Consumption of NCSs by the mothers
Time Frame: At recruitment (in the last month of pregnancy) and at 1 mont post-partum
Daily intake (mg/d) of sucralose, acesulfame-K, cyclamate, saccharin and stevia evaluated through a validated consumer trend survey
At recruitment (in the last month of pregnancy) and at 1 mont post-partum
Pregnancy complications
Time Frame: At delivery
Percentages of mothers with preclampsia, hypertension, gestacional diabetes, infections, or preterm labor
At delivery
Breastmilk concentrations of NCSs
Time Frame: One month post-partum
Concentrations of sucralose, acesulfame-K, cyclamate, saccharin, steviol in breastmilk samples
One month post-partum
Amniotic liquid concentrations of NCSs
Time Frame: At delivery
Concentrations of sucralose, acesulfame-K, cyclamate, saccharin, steviol in amniotic liquid samples
At delivery
Sweet taste of breastmilk
Time Frame: One month post-partum
Intensity (arbitrary units) of sweet taste in breast milk samples, as detected by e-tongue
One month post-partum
Sweet taste of amniotic liquid
Time Frame: At delivery
Intensity (arbitrary units) of sweet taste in amniotic liquid samples, as detected by e-tongue
At delivery
Threshold of sweet taste in children
Time Frame: 6 months
Determination of sweet taste threshold (lower concentration of sucrose detected) in children from quintiles 1 and 5 of classification according to the concentrations of NCS in breast milk that received
6 months
Food preferences in children
Time Frame: At 6 month of age
Food consumption in children from quintiles 1 and 5 of classification according to the concentrations of NCS in breast milk that receiveded,through a validated consumer trend survey
At 6 month of age
Salivary insulin in children
Time Frame: 6 months
Salivary concentration of insulin (pg/ml) in children from quintiles 1 and 5 of classification according to the concentrations of NCS in breast milk that they received
6 months
Infant gain weight
Time Frame: At 12 months
Changes in weight (kg) during the first year of life
At 12 months
Breast milk microbiota diversity
Time Frame: At one month post-partum
Intraindividual diversity of the breastmilk microbiota evaluated by Shannon index in samples from quintiles 1 and 5 of classification according to their NCS concentrations
At one month post-partum
Breast milk microbiota composition
Time Frame: At one month post-partum
Relative abundancies of the different bacterial taxa from the breastmilk microbiota, detected by high throughput sequencing, in samples from quintiles 1 and 5 of classification according to their NCS concentrations
At one month post-partum
Fecal microbiota diversity in children
Time Frame: At six months post-partum
Intraindividual diversity of the fecal microbiota, evaluated by Shannon index, in children from quintiles 1 and 5 of classification according to the concentrations of NCS in breast milk that they received
At six months post-partum
Fecal microbiota composition in children
Time Frame: At six months post-partum
Relative abundancies of the different bacterial taxa from the fecal microbiota, detected by high throughput sequencing, in children from quintiles 1 and 5 of classification according to the concentrations of NCS in breast milk that they received
At six months post-partum
Polymorphism of sweet taste receptor in children
Time Frame: At six months post-partum
Proportions of children presenting the different polymorphisms on the sweet taste receptor gene.
At six months post-partum

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Veronica Sambra, MaSc, University of Chile
  • Principal Investigator: Sandra Lopez, PhD, University of Chile
  • Principal Investigator: Paola Caceres, MaSc, University of Chile
  • Principal Investigator: Francisco Perez, PhD, University of Chile
  • Principal Investigator: Edgar Pastene, PhD, University of Concepción

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

July 1, 2019

Primary Completion (Anticipated)

July 1, 2020

Study Completion (Anticipated)

July 1, 2021

Study Registration Dates

First Submitted

May 30, 2019

First Submitted That Met QC Criteria

May 31, 2019

First Posted (Actual)

June 3, 2019

Study Record Updates

Last Update Posted (Actual)

June 3, 2019

Last Update Submitted That Met QC Criteria

May 31, 2019

Last Verified

May 1, 2019

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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