Actively Recruiting
A Study to See if an Energy Drink With Caffeine and Green Tea Increases Fat Burning When Exercising
Led by RDC Clinical Pty Ltd · Updated on 2026-04-16
40
Participants Needed
1
Research Sites
35 weeks
Total Duration
On this page
Sponsors
R
RDC Clinical Pty Ltd
Lead Sponsor
A
Amway Corp
Collaborating Sponsor
AI-Summary
What this Trial Is About
The goal of this study is to evaluate the influence of consuming a drink containing a combination of caffeine and green tea extracts on fat oxidation responses at rest, during and after a period of endurance type exercise.
CONDITIONS
Official Title
A Study to See if an Energy Drink With Caffeine and Green Tea Increases Fat Burning When Exercising
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Passing the Exercise and Sport Science Australia adult pre-exercise screening system (APSS) stage 1 & 2
- Aged between 18 and 45 years
- Not sedentary and not doing more than 150 minutes of endurance exercise per week
- Able to commit to completing all 3 trial visits
- No history of coagulopathy such as DVT or stroke
- No known heart disease
- No known pancreatic insufficiency
- No known inflammatory bowel disease or prior bowel resection or bypass surgery (excluding gastric banding and sleeve)
- Body mass index (BMI) between 22.0 and 34.9 kg/m2
- No known allergies to caffeine or green tea extract
- No known type I or II diabetes
- No uncontrolled concurrent illness
- Not currently pregnant or breastfeeding
- Not regularly consuming supplements or foods/drinks with caffeine or green tea extracts more than twice a week
- Agree to avoid caffeine for 12 hours before each clinic visit
You will not qualify if you...
- Failing the APSS pre-exercise screening criteria
- Under 18 or over 45 years old
- Sedentary or doing more than 150 minutes of endurance exercise per week
- Unable to commit to all 3 trial visits
- History of coagulopathy such as DVT or stroke
- Known heart disease
- Known pancreatic insufficiency
- Known inflammatory bowel disease or prior bowel resection or bypass surgery (excluding gastric banding and sleeve)
- BMI less than 22.0 or greater than 34.9 kg/m2
- Known allergies to caffeine or green tea extract
- Known type I or II diabetes
- Uncontrolled concurrent illness
- Taking GLP-1 agonists, caffeine, or medications known to affect metabolism
- Currently pregnant or breastfeeding
- Regularly consuming supplements, foods, or drinks containing caffeine and green tea extracts or unwilling to abstain for the study
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
Griffith University, Gold Coast Campus
Southport, Queensland, Australia, 4222
Actively Recruiting
Research Team
L
Llion Roberts, PhD
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
QUADRUPLE
Allocation
RANDOMIZED
Model
CROSSOVER
Primary Purpose
TREATMENT
Number of Arms
2
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