Skip to main content
OpenTrials
Completed

NCT Number: NCT02005796

Bioavailability of Anthocyanins of Blue Potatoes as Compared With Bilberries

In this study, the postprandial glycemia and insulinemia caused by boiled potato with blue-fleshed or yellow-fleshed tubers, or a gel prepared with bilberries and potato starch, is studied in healthy males. Additionally, the appearance and metabolism of the flavonoids and their metabolites is studied in plasma and urine.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Postprandial Glycemia

Age range

18 year–45 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Department of Biochemistry, University of Turku

University of Turku, Turku, 20014, Finland

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age 18-45
  • Male
  • No regular medication
  • No participation in a drug trial or blood donation within 2 months
  • Non-smoker
  • Signs informed consent
  • Body mass index 18.5-27 kg/m2
  • Fasting plasma cholesterol < 5.5 mmol/l
  • Fasting plasma triacylglycerols < 2.6 mmol/l
  • Fasting plasma glucose 4-6 mmol/l
  • blood pressure <140/80 mmHg
  • hemoglobin>130 g/l
  • Fasting plasma alanine amino transferase (ALAT) <60 U/l (normal liver function)
  • Fasting plasma thyroid-stimulating hormone (TSH) 0.4 - 4.5 mU/l (normal thyroid function)
  • Fasting plasma creatinine <118 µmol/l (normal kidney function)

Exclusion criteria

  • Regular smoking
  • Alcohol abuse
  • Regular medication

Treatment and study plan

Dietary Intervention

Other

Primary outcomes

  1. Plasma glucose concentration

    Time frame: 20min, 40min, 60min, 90min, 120min, 180min, 240min

  2. Plasma insulin concentration

    Time frame: 20min, 40min, 60min, 90min, 120min, 180min, 240min

Secondary outcomes

  1. Concentrations and quality of flavonoid color compounds or their metabolites in plasma and urine (HPLC-measurement)

    Time frame: 20min, 40min, 60min, 90min, 120min, 180min, 240min

  2. Concentrations and quality of flavonoid color compounds or their metabolites in plasma and urine (NMR-measurement)

    Time frame: 20min, 40min, 60min, 90min, 120min, 180min, 240min

Sponsors and collaborators

Lead sponsor

University of Turku

Other

Registry information

Important dates

Study start
2013
Primary completion
2015
Study completion
2015
First posted
Dec 9, 2013
Registry last updated
May 20, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.