Study on Water Turnover of the Chinese Population Based on Deuterium Dilution Method

Launched by SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY ,CHINESE ACADEMY OF SCIENCES · Jun 17, 2025

Keywords

ClinConnect Summary

This study is looking at how water moves through the bodies of people in China and how much water they really need each day to stay healthy. Water is very important—it helps with things like moving nutrients around, keeping your joints working smoothly, controlling your body temperature, and protecting your tissues. While many people have heard that drinking eight cups of water a day is enough, this number isn’t based on strong evidence and doesn’t consider individual differences like activity level or environment. In this study, volunteers will have their body water measured using a special safe technique called deuterium dilution. They will also track how much fluid they drink for a week, wear devices to monitor their physical activity, and share information about where they live, including things like altitude and weather.

If you want to take part, you should be between 65 and 74 years old, have had a stable body weight for the past year, and be able to carry out normal daily activities. People with certain health issues like diabetes, kidney or liver problems, or those taking medications affecting urine output won’t be eligible. Pregnant or breastfeeding women cannot join either. Participants can expect to provide some information about their daily habits and wear small devices to help the researchers understand how water moves through their bodies under different conditions. The goal is to create better, more personalized water intake recommendations for the Chinese population, so everyone knows how much water they truly need to stay healthy.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • 1. Stable body weight over the past year
• • 2. Ability to perform normal physical activities
• Exclusion Criteria:
• • 1. History of chronic diseases such as diabetes, liver disease, kidney disease, or any other conditions that may affect fluid metabolism
• • 2. Use of diuretics or other medications that influence urine output
• • 3. Pregnancy or breastfeeding