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Evidence-Based Supplement Research

Evidence-Based Supplement Research

Oolong Tea and Increased Energy Expenditure

Doses used in studies

mg/day: 100–125 (median 112.5, IQR 100–125) — 1 study

Time to effect

Median: 2 weeks · IQR 2 weeks–2 weeks · Range 2 weeks–2 weeks — Reported in 1 of 1 study

1 of 1 paper

Subacute Ingestion of Caffeine and Oolong Tea Increases Fat Oxidation without Affecting Energy Expenditure and Sleep Architecture: A Randomized, Placebo-Controlled, Double-Blinded Cross-Over Trial.
- 2020-11-28
- RCT
- Nutrients 12(12)
- - Simeng Zhang
  - Jiro Takano
  - Norihito Murayama
  - Morie Tominaga
  - Takashi Abe
  - Insung Park
  - Jaehoon Seol
  - Asuka Ishihara
  - Yoshiaki Tanaka
  - Katsuhiko Yajima
  - Yoko Suzuki
  - Chihiro Suzuki
  - Shoji Fukusumi
  - Masashi Yanagisawa
  - Toshio Kokubo
  - Kumpei Tokuyama
- PubMed: 33260552
- DOI: 10.3390/nu12123671
3 Insights on
- Increased Energy Expenditure
- High evidence
- Rigorous Journal
- Adults
Caffeine and oolong tea increased fat oxidation by ~20% without affecting energy expenditure over 24-h.
Effect
Neutral
Effect size
Small
Significant
No
Dose
100 mg caffeine, 21.4 mg gallic acid, 97 mg catechins and 125 mg polymerized polyphenol