AberTea: fermented seaweed English breakfast tea for heart and blood vessel health during menopause

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Abertay University will run a double-blind, parallel randomized trial comparing AberTea — an English breakfast tea enriched with fermented brown seaweed — to a control English breakfast tea over eight weeks. Postmenopausal women who are regular tea drinkers will be randomly assigned to drink three cups daily and will undergo fasting baseline and endpoint visits for blood pressure, vascular function testing, and blood sampling. Primary outcomes are blood pressure and vascular function, with secondary outcomes including lipoprotein profiles and glycaemic control; participants are asked not to change diet or activity. Recruitment will occur via university emails, posters, social media and local outreach, with screening to confirm eligibility and safety.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Postmenopausal status: no menstrual period over the last 12 months
* Regular tea drinkers (at least once a week), willingness to consume 3 cups of English breakfast tea per day for 8 weeks
* BMI between 18.5 and 39.99 kg/m2

Exclusion Criteria:

* Reported history of CVD (myocardial infarction, angina, venous thrombosis, stroke, dyslipidemia), diabetes (or fasting glucose ≥ 6.1 mmol/L), kidney, liver or bowel disease.
* Recent history of cancer (\<1y)
* History indicative of a congenital or acquired platelet or haemostatic defect.
* Presence of gastrointestinal disorder or use of drug, which is likely to alter gastrointestinal motility or nutrient absorption.
* Recent use of hypolipidaemic, antiplatelet or antithrombotic medications
* Impairment of thyroid function
* Current smokers or vapers
* Current self-reported weekly alcohol intake exceeding 14 units
* Current or recent use of hormone replacement therapy (\<3 months)
* Recent participation in another clinical trial (\<3 months)
* Allergy or intolerance to crustaceans or iodine

Where it's running

• Abertay University
  Dundee, United Kingdom Recruiting

Study contacts

• Principal investigator: Sarah C Cottin, PhD — Abertay University
• Study coordinator: Sarah C Cottin, PhD
• Email: s.cottin@abertay.ac.uk
• Phone: +44(0)1382308780

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.