Actively Recruiting
The Effect of the Fermented Seaweed Enriched Abertay Tea on Vascular Function and Markers of Cardiovascular Risk During Menopause
Led by Abertay University · Updated on 2025-07-17
44
Participants Needed
1
Research Sites
4 weeks
Total Duration
On this page
Sponsors
A
Abertay University
Lead Sponsor
O
Oshun Labs Ltd
Collaborating Sponsor
AI-Summary
What this Trial Is About
Researchers are studying how a special English Breakfast tea enriched with fermented brown seaweed might help improve cardiovascular health in postmenopausal women. The study focuses on factors like blood pressure, vascular function, and markers of cardiovascular risk because cardiovascular risk increases after menopause. Brown seaweed contains antioxidants, pigments, and fiber that may benefit heart health. Participants will be randomly assigned to drink either the enriched tea or a regular control tea three times a day for eight weeks. Each tea bag contains 3 grams of tea, with the enriched version also having 1 gram of fermented seaweed. They will prepare each cup by brewing the tea in boiling water for three minutes. The study uses a double-blind design, so neither participants nor researchers know which tea is given until the trial ends. Participants will attend two visits, one at the start and one after eight weeks, to measure blood pressure continuously and assess vascular function, blood lipids, insulin resistance, and menopause symptoms. Researchers will track compliance through tea logs and leftover tea bag counts, and contact participants regularly to support adherence. The total study duration for each participant is about eight weeks, with detailed health assessments performed before and after the intervention.
CONDITIONS
Brief Title
Abertay Tea for Cardiovascular Health During Menopause
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Postmenopausal status with no menstrual period for at least 12 months
- Regular tea drinkers consuming tea at least once a week
- Willingness to drink 3 cups of English Breakfast tea daily for 8 weeks
- Body mass index between 18.5 and 39.99 kg/m2
- Female aged between 45 and 74 years
You will not qualify if you...
- History of cardiovascular disease, diabetes, or kidney, liver, or bowel disease
- Fasting glucose level of 6.1 mmol/L or higher
- Cancer diagnosis within the past year
- Known platelet or blood clotting disorders
- Gastrointestinal disorders or use of drugs affecting digestion or nutrient absorption
- Recent use of cholesterol-lowering, antiplatelet, or blood-thinning medications
- Thyroid function impairment
- Current smoking or vaping
- Weekly alcohol intake exceeding 14 units
- Use of hormone replacement therapy within the past 3 months
- Participation in another clinical trial within the past 3 months
- Allergy or intolerance to crustaceans or iodine
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - 8 weeks
Participants consume 3 cups of either the fermented seaweed enriched tea or control tea daily for 8 weeks without changing other habits.
2 visits (baseline and endpoint, both fasting, in-person) and regular compliance contacts every 2 weeks
Trial Site Locations
Total: 1 location
1
Abertay University
Dundee, United Kingdom, DD1 9HG
Actively Recruiting
Research Team
S
Sarah C Cottin, PhD
V
Vishnu Selvaraju, PhD
How is the study designed?
Study Type
INTERVENTIONAL
Masking
TRIPLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
PREVENTION
Number of Arms
2
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