Related Experiment Video
Updated: Nov 15, 2025

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Evaluation of hydration status of children with obesity-a pilot study
Akif Celik1, Ayse Nurcan Cebeci1
1Department of Pediatrics, Division of Pediatric Endocrinology, Istanbul Bilim Universitesi Tip Fakultesi, Istanbul, Turkey.
Insights
Children with obesity drink less fluid and are more dehydrated than normal-weight children. This study highlights lower total body water and higher urine density in obese youth, indicating poorer hydration status.
Area of Science:
- Pediatric Endocrinology
- Nutritional Science
- Hydration Physiology
Background:
- Childhood obesity is a growing global health concern.
- Adequate hydration is crucial for overall health and metabolic function.
- The relationship between obesity and hydration status in children requires further investigation.
Purpose of the Study:
- To compare hydration status between children with obesity and normal-weight children.
- To investigate the association between obesity and reduced water consumption.
- To assess differences in fluid intake, urine density, and body composition.
Main Methods:
- A cross-sectional study comparing 31 children with obesity (Group 1) and 30 normal-weight children (Group 2), aged 7-18 years.
- Evaluated body composition, urine specific gravity, and daily fluid intake.
- Assessed consumption of sugar-sweetened beverages (SSBs).
Main Results:
- Children with obesity exhibited significantly lower fluid intake per body surface area and higher urine density compared to normal-weight children.
- Obese children had higher body fat percentage and lower total body water and fat-free mass percentages.
- Only 55% of obese children met recommended fluid intake, versus 80% of normal-weight children, with higher SSB consumption in the obese group.
Conclusions:
- Children with obesity demonstrate poorer hydration status, characterized by reduced fluid consumption, lower total body water, and increased urine density.
- Obesity is linked to decreased hydration levels in pediatric populations.
- Findings underscore the importance of monitoring hydration in children with obesity.
Objectives:
To compare the hydration status between children with obesity and normal-weighted children and to determine whether obesity is related to less water consumption.
Methods:
Children aged between 7 and 18 years with obesity (Group 1, n=31) were compared with nonobese healthy volunteers (Group 2, n=30) in terms of body composition analysis, urine density and daily fluid intake.
Results:
The fluid intake per body surface of Group 1 was found significantly less than Group 2 (p<0.001). The urine density was found significantly higher in Group 1 (1020 (10) vs. 1015(10), p<0.001). Subjects in Group 1 had a higher percentage of body fat (p<0.001), lower percentages of total body water and fat-free mass (p=0.007 and <0.001, respectively). While 55% of subjects in Group 1 satisfied the recommended daily fluid intake, this was 80% in Group 2 (p=0.036). The consumption of SSBs was 71% in Group 1 and 20% in Group 2, with higher amount in Group 1 (median 200 vs. 0 mL, p<0.001).
Conclusions:
Children with obesity had less fluid consumption, lower TBW percentages and higher urine density. The results of this cross-sectional study showed that children with obesity were less hydrated than normal weighted children.
More Related Videos
10:21Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test
Published on: September 22, 2023
07:44Author Spotlight: Implementation of BIVA for Analyzing Disease Risk Factors in Patients with Low Body Cell Mass
Published on: July 14, 2023
Related Concept Videos
Drug Dosing: Obese Patients
Disorder of Water Balance
Dehydration
Dehydration occurs when the body loses fluids (particularly water).
Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
Signs and Symptoms:
Symptoms primarily include intense...
Regulation of Water Intake
Pharmacokinetics in Obese Patients: Drug Absorption and Distribution
Strength and Heat of Hydration
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
Obesity