While Nuun Instant is commercially available and has received positive reviews from athletes, there have been no studies to date to evaluate the impact of this product on hydration status. Therefore, the purpose of this study is to determine the impact of Nuun Instant powder and new product under development called Nuun Electrolyte on hydration status in young and active men and women. We will follow a similar approach as used by Maughan and colleagues (2016) to measure the fluid balance (the difference between the amount of water consumed and passed as urine) and beverage hydration index (the relative amount of urine passed after consumption of a drink compared to water), while also measuring plasma volume using the method of Dill and Costill (1974).
Age range
18 Years – 45 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Body weight
Timeframe: baseline
Body weight
Timeframe: 4 hours after intervention
Urine Volume
Timeframe: Immediately following intervention
Urine Volume
Timeframe: 1 hour after intervention
Urine Volume
Timeframe: 2 hours after intervention
Urine Volume
Timeframe: 3 hours after intervention
Urine Volume
Timeframe: 4 hours after intervention
Urine Mass
Timeframe: immediately after intervention
Urine Mass
Timeframe: 1 hour after intervention
Urine Mass
Timeframe: 2 hours after intervention
Urine Mass
Timeframe: 3 hours after intervention
Urine Mass
Timeframe: 4 hours after intervention
Blood Pressure
Timeframe: baseline
Blood Pressure
Timeframe: 1 hour after intervention
Blood Pressure
Timeframe: 2 hours after intervention
Blood Pressure
Timeframe: 3 hours after intervention
Blood Pressure
Timeframe: 4 hours after intervention
Heart Rate
Timeframe: immediately after intervention
Heart Rate
Timeframe: 1 hour after intervention
Heart Rate
Timeframe: 2 hours after intervention
Heart Rate
Timeframe: 3 hours after intervention
Heart Rate
Timeframe: 4 hours after intervention
Hematocrit
Timeframe: baseline
Hematocrit
Timeframe: 4 hours after intervention
Hemoglobin
Timeframe: baseline
Hemoglobin
Timeframe: 4 hours after intervention