Black Tea and Reduced Diastolic Blood Pressure Variation

Doses used in studies

cups/day: 3 (median 3, IQR 3–3) — 1 study

Time to effect

Median: 6 months · IQR 6 months–6 months · Range 6 months–6 months — Reported in 1 of 1 study

1 of 1 paper

Black tea lowers the rate of blood pressure variation: a randomized controlled trial.

2013-05
RCT · n = 111
The American journal of clinical nutrition 97(5)
- Jonathan M Hodgson
- Kevin D Croft
- Richard J Woodman
- Ian B Puddey
- Dagmar Fuchs
- Richard Draijer
- Elena Lukoshkova
- Geoffrey A Head

PubMed: 23553154
DOI: 10.3945/ajcn.112.051375

4 Insights on

Reduced Diastolic Blood Pressure Variation

High evidence
Large Human Trial
Clinical

Across the 3 time points, tea, compared with the control, resulted in lower rates of systolic (P = 0.0045) and diastolic (P = 0.016) blood pressure variation by ~10% during nighttime (2200-0600).

Effect: Beneficial
Effect size: Small
Significant: Yes
Dose: 3 cups/day