European Journal of Nutrition

, Volume 52, Issue 8, pp 1875–1889

Intake of whole apples or clear apple juice has contrasting effects on plasma lipids in healthy volunteers

Authors

    • Department of Nutrition, Exercise and Sports, Faculty of ScienceUniversity of Copenhagen
    • Division of Toxicology and Risk Assessment, National Food InstituteTechnical University of Denmark
  • Lars O. Dragsted
    • Department of Nutrition, Exercise and Sports, Faculty of ScienceUniversity of Copenhagen
  • Tine Buch-Andersen
    • Department of Nutrition, Exercise and Sports, Faculty of ScienceUniversity of Copenhagen
  • Eva N. Jensen
    • Department of Nutrition, Exercise and Sports, Faculty of ScienceUniversity of Copenhagen
  • Runa I. Jensen
    • Department of Nutrition, Exercise and Sports, Faculty of ScienceUniversity of Copenhagen
  • Mária Németh-Balogh
    • Department of Nutrition, Exercise and Sports, Faculty of ScienceUniversity of Copenhagen
    • Department of Human Nutrition, Faculty of Agrobiology and Food ResourcesSlovak University of Agriculture in Nitra
  • Brigita Paulovicsová
    • Department of Nutrition, Exercise and Sports, Faculty of ScienceUniversity of Copenhagen
    • Department of Human Nutrition, Faculty of Agrobiology and Food ResourcesSlovak University of Agriculture in Nitra
  • Anders Bergström
    • Division of Food Microbiology, National Food InstituteTechnical University of Denmark
  • Andrea Wilcks
    • Division of Food Microbiology, National Food InstituteTechnical University of Denmark
  • Tine R. Licht
    • Division of Food Microbiology, National Food InstituteTechnical University of Denmark
  • Jarosław Markowski
    • Department of Storage and ProcessingResearch Institute of Pomology and Floriculture
  • Susanne Bügel
    • Department of Nutrition, Exercise and Sports, Faculty of ScienceUniversity of Copenhagen
Original Contribution

DOI: 10.1007/s00394-012-0489-z

Cite this article as:
Ravn-Haren, G., Dragsted, L.O., Buch-Andersen, T. et al. Eur J Nutr (2013) 52: 1875. doi:10.1007/s00394-012-0489-z

Abstract

Purpose

Fruit consumption is associated with a decreased risk of CVD in cohort studies and is therefore endorsed by health authorities as part of the ‘5 or more a day’ campaigns. A glass of fruit juice is generally counted as one serving. Fruit may cause protection by affecting common risk factors of CVD.

Methods

Apples are among the most commonly consumed fruits and were chosen for a comprehensive 5 × 4 weeks dietary crossover study to assess the effects of whole apples (550 g/day), apple pomace (22 g/day), clear and cloudy apple juices (500 ml/day), or no supplement on lipoproteins and blood pressure in a group of 23 healthy volunteers.

Results

The intervention significantly affected serum total and LDL-cholesterol. Trends towards a lower serum LDL-concentration were observed after whole apple (6.7 %), pomace (7.9 %) and cloudy juice (2.2 %) intake. On the other hand, LDL-cholesterol concentrations increased by 6.9 % with clear juice compared to whole apples and pomace. There was no effect on HDL-cholesterol, TAG, weight, waist-to-hip ratio, blood pressure, inflammation (hs-CRP), composition of the gut microbiota or markers of glucose metabolism (insulin, IGF1 and IGFBP3).

Conclusions

Apples are rich in polyphenols and pectin, two potentially bioactive constituents; however, these constituents segregate differently during processing into juice products and clear juice is free of pectin and other cell wall components. We conclude that the fibre component is necessary for the cholesterol-lowering effect of apples in healthy humans and that clear apple juice may not be a suitable surrogate for the whole fruit in nutritional recommendations.

Keywords

ApplesPomaceClear juiceBlood lipidsCVDISAFRUIT

Supplementary material

394_2012_489_MOESM1_ESM.docx (14 kb)
Supplementary material 1 (DOCX 14 kb)

Copyright information

© Springer-Verlag Berlin Heidelberg 2012