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Completed

NCT Number: NCT01759329

Health Effects of Coffee Consumption

Epidemiological studies have indicated a positive health impact of coffee. Nevertheless, intervention studies testing the effect of daily coffee consumption over a longer period are lacking so far. Moreover, there is a lack of knowledge about the properties of different coffees and their influence on weight development. Therefore, we tested the effect of two coffees differing in their alkyl pyridine content over a period of 3 months on weight development.

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Key information

Conditions

Overweight Body Weight Nutrition Disorders Nutritional and Metabolic Diseases Overnutrition Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year–69 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

West German Center of Diabetes and Health

Düsseldorf, 40591, Germany

About this study

Participants were randomly associated to two groups, a test coffee group and a control coffee group. After coffee abstinence of 1 months, participants in both groups got a coffee machine and coffee pads for three months. Clinical data have been assessed before and after coffee abstinence and after 3 months of coffee consumption.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • age 18-69 years
  • BMI ≥27 kg/m2
  • coffee consumption of ≥3 cups per day

Exclusion criteria

  • new diagnosed type 2 diabetes during the last 6 months
  • severe diseases with hospital stay during the last 3 months
  • change of body weight of more than 2 kg per week during the last 4 weeks
  • smoking cessation during the last 3 months or planned during the study
  • acute infects
  • chronical diseases with except of type 2 diabetes mellitus
  • regular pharmacological therapy with except of oral antidiabetic medication or contraception
  • lack of contraception in women
  • breastfeeding
  • physical activity of more than 1 hour per day

Treatment and study plan

test coffee

Dietary Supplement

test coffee with higher alkyl pyridine content

control coffee

Dietary Supplement

control coffee with regular alkyl pyridine content

Primary outcomes

  1. body weight

    Time frame: 4 months

    body weight

Sponsors and collaborators

Lead sponsor

West German Center of Diabetes and Health

Other

Collaborators

  • Tchibo GmbH

Registry information

Acronym: DüsselKaffee

Important dates

Study start
2011
Primary completion
2011
Study completion
2011
First posted
Jan 3, 2013
Registry last updated
Jan 3, 2013

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.

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