Daily cocoa intake reduces the susceptibility of low-density lipoprotein to oxidation as demonstrated in healthy human volunteers

Naomi Osakabe, Seigo Baba, Akiko Yasuda, Tamami Iwamoto, Masumi Kamiyama, Toshio Takizawa, Hiroshige Itakura, Kazuo Kondo

Research output: Contribution to journalArticle

109 Citations (Scopus)

Abstract

Nine male volunteers were given 36 g of cocoa powder (containing 2610 mg of polyphenols) per day with sugar and 6 volunteers received an equivalent amount of sugar for 2 weeks. Conjugated diene production in LDL induced by 2-2′ azobis(4-methoxy-2, 4-dimethyl-valeronitrile) (V-70) and copper ion were evaluated. The lag time was significantly prolonged at 1 and 2 weeks in V-70 and at 2 weeks in copper ion after cocoa powder consumption. The level of excretion of epicatechin in urine was significantly higher in the cocoa group than that in the control group. In conclusion, the antioxidants in cocoa powder might be absorbed and increase the resistance of human LDL to oxidation.

Original languageEnglish
Pages (from-to)93-99
Number of pages7
JournalFree Radical Research
Volume34
Issue number1
DOIs
Publication statusPublished - 2001 Jan 1
Externally publishedYes

Keywords

  • Cocoa powder
  • Diene
  • Human volunteers
  • LDL
  • Oxidation
  • Polyphenols

ASJC Scopus subject areas

  • Biochemistry

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