Effects of raspberry leaf tea on blood sugar levels
The Effects of Raspberry Leaf Tea on Blood Glucose Control in Healthy Adults
This study is testing if drinking raspberry leaf tea can help healthy adults lower their blood sugar levels after eating sugar.
Quick facts
| Phase | Not applicable |
|---|---|
| Study type | Interventional |
| Enrollment | 20 (estimated) |
| Ages | 18 Years to 65 Years |
| Sex | All |
| Sponsor | University of Reading Academic / other |
| Locations | 1 site (Reading, Berkshire) |
| Trial ID | NCT06385626 on ClinicalTrials.gov |
What this trial studies
This clinical trial aims to evaluate the impact of raspberry leaf polyphenols on blood glucose and insulin levels in healthy adults after consuming sucrose. The study will involve 20 participants aged 18-65 who meet specific health criteria and will assess whether raspberry leaf tea can reduce sucrose-induced increases in plasma glucose. Participants will undergo a series of visits where they will consume carbohydrate powder with or without raspberry leaf tea after an overnight fast. The trial will help determine the mechanism by which these polyphenols may affect glucose metabolism.
Who should consider this trial
Good fit: Ideal candidates are healthy adults aged 18-65 with normal fasting blood glucose levels and no chronic illnesses.
Not a fit: Patients with prediabetes, diabetes, or chronic illnesses will not benefit from this study.
Why it matters
Potential benefit: If successful, this study could provide a natural dietary intervention for better blood glucose control.
How similar studies have performed: While the specific effects of raspberry leaf tea are less explored, other studies on polyphenols have shown promising results in glucose metabolism.
Eligibility criteria
Show full inclusion / exclusion criteria
The volunteer inclusion criteria are: * Fasting blood glucose in the range \< 5.5 mmol/l (at day 0) * A signed consent forms. * Age 18-65 years * Body mass index ≤ 34.9 kg/m2 * Non-smoking * No pregnancy/lactation * No use of herbal medicines for at least the previous three months * Not on a weight loss program six months before screening * Not involved in clinical trial six months before screening * Not had severe cardiac, hepatic, or renal function impairment The volunteer exclusion criteria are: * Smoking * Pregnancy/lactation * Use of herbal medicines for at least the previous three months * Involved in a weight loss program six months before screening. * Involved in clinical trial six months before the screening. * Had severe cardiac, hepatic, or renal function impairment. * Sufferers of chronic illnesses * Individuals with food allergies * People with prediabetes or diabetes * People with coeliac disease
Where this trial is running
Reading, Berkshire
- Hugh Sinclair Unit of Human Nutrition, University of Reading — Reading, Berkshire, United Kingdom (Recruiting)
Study contacts
- Principal investigator: Jeremy Spencer, PhD — University of Reading
- Study coordinator: Jeremy Spencer, PhD
- Email: j.p.e.spencer@reading.ac.uk
- Phone: 01183788724
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.