DAG Oil for Metabolic Risk in Prediabetes
Official title: Efficacy of Diacylglycerol Oil on Metabolic Risk Factors in Prediabetes
Run by The First Affiliated Hospital of Guangdong Pharmaceutical University · NCT07289880 · Data updated 2026-11-12
This study tests whether replacing usual cooking oil with diacylglycerol (DAG) oil for four weeks improves blood sugar control and lipid levels in adults with prediabetes.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 40 Years to 75 Years |
| Sex | All |
| Enrollment | 40 (estimated) |
| Sponsor | The First Affiliated Hospital of Guangdong Pharmaceutical University Academic / other |
| Locations | 1 site (Guangzhou, Guangdong) |
| Status | Recruiting |
| Started | December 30, 2025 |
| Main results expected | December 1, 2026 |
| Study ends | December 30, 2027 |
| Registry record updated | October 21, 2026 |
| Trial ID | NCT07289880 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 40-75 with prediabetes, BMI 24 kg/m² or higher, and who are willing to consume all study-provided meals for four weeks.
✕Probably not a fit
Individuals with established diabetes, those on glucose-lowering medications, or unable to adhere to study meals may not experience benefits.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This interventional study assigns middle-aged and older adults with prediabetes to replace their cooking oil with DAG oil for four weeks, while a control group uses colza oil. All other lifestyle factors are kept the same to isolate the effect of DAG oil on glycemic regulation, lipid metabolism, and body composition. Participants must consume all study-provided meals and meet specific metabolic and health criteria. Exclusion criteria include diabetes, certain medications, recent weight changes, and other health conditions that could confound results. The trial is led by The First Affiliated Hospital of Guangdong Pharmaceutical University with collaboration from Sun Yat-sen University and is conducted in Guangzhou/Beijing area locations.
Why it matters
Potential benefit: If successful, DAG oil could offer a simple dietary change to support better blood sugar and lipid profiles in people at risk for diabetes.
How similar studies have gone: Previous research on DAG oil has shown potential metabolic benefits, but results vary and this trial adds specific evidence in a prediabetic population.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Aged 40-75 years. 2. Diagnosed with prediabetes according to American Diabetes Association (ADA) criteria: including fasting plasma glucose (FPG) levels of 5.6-6.9 mmol/L, and/or 2-hour postprandial glucose (OGTT-2h) levels of 7.8-11.1 mmol/L, and/or glycated hemoglobin (HbA1c) levels of 5.7%-6.4%. 3. Body mass index (BMI) ≥ 24 kg/m². 4. No plans to relocate or travel extensively in the next three months. 5. Willing to consume all study-provided meals throughout the intervention. 6. Willing and able to provide written informed consent. Exclusion Criteria: 1. Diagnosis of diabetes (Type 1 or Type 2). 2. Current use of any glucose-lowering medication. 3. Use of appetite suppressants or hormonal medications. 4. History of bariatric surgery, or weight change \>5% in the past 3 months. 5. Alcohol consumption \>40 g/day. 6. Use of antibiotics, probiotics, or prebiotics within the past 3 months. 7. Pregnancy, lactation or planning pregnancy. 8. History of severe cardiovascular disease, malignancy, autoimmune disease, cognitive impairment, or severe dysfunction of thyroid, liver, kidney, or digestive system. 9. Inability to comprehend information, communicate effectively, or comply with the study protocol.
Where it's running
-
Beijing Street
Guangzhou, Guangdong, China Recruiting
Study contacts
- Study coordinator: QiuYe Dr. Lan
- Email: lanqiuye@gdpu.edu.cn
- Phone: +86-18520395821
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Lifestyle Metabotype Study B: Understanding Personalized Glucose Responses
This study tests how lifestyle, metabolism, and brain energy use relate to each person’s blood sugar response after meals, across people with and without prediabetes or type 2 diabetes.
-
Lifestyle Metabotype Study: How Daily Habits Shape Blood Sugar
This observational study tests whether personal lifestyle and biological factors can predict how a person’s blood sugar responds after meals.
-
Hourly stair-climbing snacks to improve blood sugar and heart health in adults with prediabetes
This study tests whether short stair-climbing bursts every hour can improve blood sugar and vascular health in adults with prediabetes.
-
Smart probiotic and nutraceutical approach for cardiometabolic health in older adults
This trial tests whether a probiotic-containing nutraceutical strategy can improve metabolic health and blood pressure in adults over 65 with prediabetes or cardiovascular disease.
-
Family-based diabetes prevention for parents and kids
A family-focused program tests whether a 12-week lifestyle plan can help parents at risk for diabetes lose weight and improve healthy habits for themselves and their children aged 12–17.
-
Cardiorespiratory and muscular fitness in children with obesity and autism
This study tests whether cardiorespiratory fitness and handgrip strength differ between children with obesity who have autism and those who do not, and how these fitness measures relate to body size, composition, and cardiometabolic health.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.