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Effect of Carbonated Soft Drinks on the Body Weight

This study has been completed.
LG Life Sciences
Information provided by (Responsible Party):
Maria Maersk Nielsen, Aarhus University Hospital Identifier:
First received: October 21, 2008
Last updated: March 28, 2017
Last verified: March 2017

Compared to solid foods, the nutritional energy of drinks may bypass the appetite regulation leading to obesity development. Although drinks sweetened with aspartame are available the anticipated positive effect of these drinks on obesity development has not been convincing. However, the mechanisms linking drinks intake to obesity are yet to be clarified.

The investigators aim is to investigate the long-term effects of intake of soft drinks, milk and water. The study is a parallel, intervention trial with 80 overweight, healthy volunteers. They will be randomly selected to drink one liter a day of one of the four drinks for six months. The objectives are changes in numerous circulating metabolic risk factors, changes in body weight, anthropometric data and fat distribution (measured by DEXA, MRI and MR-spectroscopy).

The investigators expect to clarify the mechanisms linking drinking habits to obesity development and provide scientifically based nutritional guidelines.

Condition Intervention
Obesity Metabolic; Complications Dietary Habits Other: Sugar-sweetened soft drink Other: Aspartame-sweetened soft drink Other: Semi-skimmed milk Other: Water

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Other
Official Title: Effect of Carbonated Soft Drinks on Body Weight, Fat Distribution and Metabolic Risk Factors

Resource links provided by NLM:

Further study details as provided by Maria Maersk Nielsen, Aarhus University Hospital:

Primary Outcome Measures:
  • Body Weight (kg) [ Time Frame: Six months ]
  • MR spectroscopy [ Time Frame: Six months ]
    to assess liver fat and skeletal muscle fat

  • Magnetic resonance imaging [ Time Frame: Six months ]
    to assess visceral adipose tissue (VAT) and subcutaneous abdominal adipose tissue (SAAT)

  • Dual-energy X-ray absorptiometry (DEXA) scan [ Time Frame: Six months ]
    to assess total fat mass (kg), lean body mass (kg), and bone mass (kg)

Secondary Outcome Measures:
  • Blood pressure [ Time Frame: Six months ]
    Systolic and diastolic blood pressure (mmHg)

  • Circulating metabolic parameters: including serum urate [ Time Frame: Six months ]

  • fasting plasma glucose [ Time Frame: Six months ]

  • fasting serum insulin [ Time Frame: Six months ]

  • Oral Glucose Tolerance Test (OGTT) [ Time Frame: Six months ]
    AUC OGTT glucose and insulin, AUC HOMA-IR, and Matzuda index

  • Fasting blood lipids [ Time Frame: Six months ]
    Total, LDL, and HDL cholesterol, and TAG (mmol/L)

  • Fasting plasma FFA [ Time Frame: Six months ]

  • Fasting plasma PAI-1 [ Time Frame: Six months ]

Enrollment: 60
Study Start Date: May 2008
Study Completion Date: December 2010
Primary Completion Date: December 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Sugar-sweetened soft drink
54g sugar/L, 180kJ/100mL
Other: Sugar-sweetened soft drink
One litre a day for six months.
Experimental: Aspartame-sweetened soft drink
Other: Aspartame-sweetened soft drink
One litre a day for six months.
Active Comparator: Semi-skimmed milk
Other: Semi-skimmed milk
One litre a day for six months
Placebo Comparator: Water
Other: Water
One litre a day for six months.


Ages Eligible for Study:   20 Years to 50 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Age between 20-50 years;
  • BMI between 28-36 kg/m2;
  • Weight stabile 3 months prior to the study inclusion;
  • Less than 10 hours of weekly exercise

Exclusion Criteria:

  • Diabetes
  • Allergic to phenylalanine or milk
  • Smoking
  • Pregnancy or breast-feeding
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00777647

Department of Internal Medicine/Endocrinology C, Aarhus University Hospital
Aarhus, Denmark, 8000
Sponsors and Collaborators
Aarhus University Hospital
LG Life Sciences
Study Chair: Bjørn Richelsen, Professor Department of Internal Medicine/Endocrinology C, Aarhus University Hospital
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Maria Maersk Nielsen, MD, PHD, Aarhus University Hospital Identifier: NCT00777647     History of Changes
Other Study ID Numbers: 20070134B
Study First Received: October 21, 2008
Last Updated: March 28, 2017

Additional relevant MeSH terms:
Body Weight
Signs and Symptoms processed this record on August 18, 2017