Randomized controlled trial of the effects of consumption of ‘Yabukita’ or ‘Benifuuki’ encapsulated tea-powder on low-density lipoprotein cholesterol level and body weight

Yuko Igarashi, Taku Obara, Mami Ishikuro, Hiroko Matsubara, Michiko Shigihara, Hirohito Metoki, Masahiro Kikuya, Yoichi Sameshima, Hirofumi Tachibana, Mari Maeda-Yamamoto, Shinichi Kuriyama

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Background: Previous studies have reported controversial results for the association between green tea consumption and low-density lipoprotein (LDL)-cholesterol and body weight. Objective: The objective of this trial was to determine the effects of two kinds of green tea on LDL-cholesterol and body weight. Methods: We randomly assigned 151 participants (98 men, 53 women) aged 30–70 years into three groups: Yabukita green tea group, Benifuuki green tea group, or placebo group. Participants consumed 1.8 g/day of green tea extract powder or placebo for 12 weeks. The primary outcomes were LDL-cholesterol level and body weight, and the secondary outcomes were risk factors for cardiovascular disease. Results: Both Yabukita and Benifuuki green tea significantly lowered LDL-cholesterol. The magnitudes of the lipid-lowering effect of both types of tea were significantly larger than that of placebo. No differences with respect to changes in LDL-cholesterol were observed between the Yabukita and Benifuuki green tea groups. Neither Yabukita nor Benifuuki green tea had any effect on body weight and no difference was observed among groups regarding changes in body weight. Conclusion: Both Yabukita and Benifuuki green tea lowered LDL-cholesterol, and the lipid-lowering effects of these two green teas were not different. Neither tea lowered body weight.

Original languageEnglish
Article number1334484
JournalFood and Nutrition Research
Volume61
DOIs
Publication statusPublished - Jan 1 2017

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green tea
Tea
low density lipoprotein cholesterol
Powders
LDL Cholesterol
tea
powders
Randomized Controlled Trials
Body Weight
body weight
lipemic effect
placebos
Placebos
body weight changes
Lipids
Body Weight Changes
cardiovascular diseases
risk factors
Cardiovascular Diseases
extracts

All Science Journal Classification (ASJC) codes

  • Food Science
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health

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Randomized controlled trial of the effects of consumption of ‘Yabukita’ or ‘Benifuuki’ encapsulated tea-powder on low-density lipoprotein cholesterol level and body weight. / Igarashi, Yuko; Obara, Taku; Ishikuro, Mami; Matsubara, Hiroko; Shigihara, Michiko; Metoki, Hirohito; Kikuya, Masahiro; Sameshima, Yoichi; Tachibana, Hirofumi; Maeda-Yamamoto, Mari; Kuriyama, Shinichi.

In: Food and Nutrition Research, Vol. 61, 1334484, 01.01.2017.

Research output: Contribution to journalArticle

Igarashi, Yuko ; Obara, Taku ; Ishikuro, Mami ; Matsubara, Hiroko ; Shigihara, Michiko ; Metoki, Hirohito ; Kikuya, Masahiro ; Sameshima, Yoichi ; Tachibana, Hirofumi ; Maeda-Yamamoto, Mari ; Kuriyama, Shinichi. / Randomized controlled trial of the effects of consumption of ‘Yabukita’ or ‘Benifuuki’ encapsulated tea-powder on low-density lipoprotein cholesterol level and body weight. In: Food and Nutrition Research. 2017 ; Vol. 61.
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abstract = "Background: Previous studies have reported controversial results for the association between green tea consumption and low-density lipoprotein (LDL)-cholesterol and body weight. Objective: The objective of this trial was to determine the effects of two kinds of green tea on LDL-cholesterol and body weight. Methods: We randomly assigned 151 participants (98 men, 53 women) aged 30–70 years into three groups: Yabukita green tea group, Benifuuki green tea group, or placebo group. Participants consumed 1.8 g/day of green tea extract powder or placebo for 12 weeks. The primary outcomes were LDL-cholesterol level and body weight, and the secondary outcomes were risk factors for cardiovascular disease. Results: Both Yabukita and Benifuuki green tea significantly lowered LDL-cholesterol. The magnitudes of the lipid-lowering effect of both types of tea were significantly larger than that of placebo. No differences with respect to changes in LDL-cholesterol were observed between the Yabukita and Benifuuki green tea groups. Neither Yabukita nor Benifuuki green tea had any effect on body weight and no difference was observed among groups regarding changes in body weight. Conclusion: Both Yabukita and Benifuuki green tea lowered LDL-cholesterol, and the lipid-lowering effects of these two green teas were not different. Neither tea lowered body weight.",
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