Health Effects of Coffee Consumption

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01759329

Acronym

DüsselKaffee

Enrollment

118

Registered

2013-01-03

Start date

2011-01-31

Completion date

2011-12-31

Last updated

2013-01-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Overweight

Keywords

overweight, body weight, coffee

Brief summary

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.

Detailed description

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.

Interventions

DIETARY_SUPPLEMENTtest coffee

test coffee with higher alkyl pyridine content

DIETARY_SUPPLEMENTcontrol coffee

control coffee with regular alkyl pyridine content

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

SUPPORTIVE_CARE

Masking

QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to 69 Years

Healthy volunteers

Yes

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

Design outcomes

Primary

Measure	Time frame	Description
body weight	4 months	body weight

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026