Teen weight loss: Low-GI diet tested in hong kong
NCT ID NCT01278563
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether a low glycemic index (GI) diet helps overweight Chinese teenagers lose weight and improve health. 285 adolescents followed either a low-GI or regular Chinese diet for 12 months. Researchers measured changes in body mass index, body fat, and heart-related risk factors.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- low glycemic index diet
- What this could lead to
- If it works, this could point toward a simple dietary approach to help teenagers manage weight and reduce future diabetes risk.
- What could go wrong
- This is a completed trial, so results are available but may not apply to all teens. Dietary changes can be hard to stick with long-term.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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285 people
The number who actually took part.
- Started
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Feb 2011
- Finished
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Oct 2013
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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15 to 21 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * School children aged 15 or above * Male or female of Chinese ethnicity * Body mass index \>/= 95th percentile of Hong Kong local age- and sex-specific reference * No major medical illness * Not on any chronic medications * Post-pubertal as ascertained by clinical assessment by endocrinologist * Willingness to give written informed consent by participants and his/her parents/guardian Exclusion criteria: * Concurrent participation in any clinical trial, dietary intervention or weight loss program * Concomitant intake of weight reducing agent * Active and uncontrolled endocrine diseases including hypo- or hyperthyroidism, Cushing's syndrome, diabetes mellitus, etc. * Significant renal impairment, defined as serum creatinine \>150 umol/L and/or estimated glomerular filtration rate \<60ml/min/1.73m2 * Significant liver impairment, defined as \>2 times upper limit of alanine aminotransferase and asparate aminotransferase levels * Gastrointestinal problems that would prevent them from following the test diets * Active malignant disease * Pregnant or lactating * Any medical illness or condition including known non-compliance, as judged by the investigators as ineligible to participate the study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Clinical Trial Centre, The Chinese University of Hong Kong, Prince of Wales Hospital
Hong Kong, Hong Kong
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The Chinese University of Hong Kong
Hong Kong, Hong Kong, China
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