Meta-analyses of Liquid Versus Solid Calories and Body Weight
Effect of Liquid Versus Solid Calories on Body Weight: a Systematic Review and Meta-analysis of Controlled Feeding Trials
1 other identifier
observational
1
1 country
1
Brief Summary
Consumption of sugar-sweetened beverages (SSBs) has been linked to rising rates of overweight and obesity. The most prominent mechanism to explain the link between SSBs and obesity is that liquid calories are not perceived by the body; thereby, promoting less satiety, less energy compensation and more weight gain than does the same energy consumed in solid form. This view is supported by pooled analyses of acute preload trials that have primarily measured food intake as the outcome. Though failure of short-term compensation has been observed with liquid calories, results from these acute preload trials should not be extrapolated to infer that liquid energy sources lead to weight gain over the long-term. To date, it is unclear whether liquid calories have differential effects than solid calories on body weight gain over the longer term. To increase clarity in this issue, the investigators propose to conduct a systematic review and meta-analysis from long-term controlled feeding trials to distinguish the contribution of liquid calories from solid calories on body weight over the long-term. The findings generated by this analysis will improve the health of consumers through informing evidence-based guidelines and improving health outcomes by educating healthcare providers and patients, stimulating industry innovation, and guiding future research design.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for all trials
Started May 2015
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 1, 2015
CompletedFirst Submitted
Initial submission to the registry
March 2, 2016
CompletedFirst Posted
Study publicly available on registry
March 8, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2016
CompletedMay 17, 2016
May 1, 2016
1.3 years
March 2, 2016
May 15, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Body weight
Up to 20 years
Interventions
Eligibility Criteria
All individuals, both children and adults, regardless of health status.
You may qualify if:
- Controlled trials in humans
- Treatment duration more or equal than 7 days
- Viable endpoint data (body weight)
- Suitable control (e,i. Isocaloric exchange of liquid carbohydrates with solid carbohydrates)
You may not qualify if:
- Non-human studies
- No viable endpoint data
- Acute preload studies (\< 7 days)
- Lack of a suitable control (non-isocaloric)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- John Sievenpiperlead
- The Physicians' Services Incorporated Foundationcollaborator
- Canadian Institutes of Health Research (CIHR)collaborator
Study Sites (1)
The Toronto 3D (Diet, Digestive tract and Disease) Knowledge Synthesis and Clinical Trials Unit, Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital
Toronto, Ontario, M5C 2T2, Canada
Related Publications (3)
Kaiser KA, Shikany JM, Keating KD, Allison DB. Will reducing sugar-sweetened beverage consumption reduce obesity? Evidence supporting conjecture is strong, but evidence when testing effect is weak. Obes Rev. 2013 Aug;14(8):620-33. doi: 10.1111/obr.12048. Epub 2013 Jun 7.
PMID: 23742715BACKGROUNDAlmiron-Roig E, Palla L, Guest K, Ricchiuti C, Vint N, Jebb SA, Drewnowski A. Factors that determine energy compensation: a systematic review of preload studies. Nutr Rev. 2013 Jul;71(7):458-73. doi: 10.1111/nure.12048. Epub 2013 Jun 10.
PMID: 23815144BACKGROUNDAllison DB. Liquid calories, energy compensation and weight: what we know and what we still need to learn. Br J Nutr. 2014 Feb;111(3):384-6. doi: 10.1017/S0007114513003309. Epub 2013 Oct 29. No abstract available.
PMID: 24164833BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
John L Sievenpiper, MD, PhD, FRCPC
University of Toronto
Study Design
- Study Type
- observational
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
March 2, 2016
First Posted
March 8, 2016
Study Start
May 1, 2015
Primary Completion
September 1, 2016
Study Completion
December 1, 2016
Last Updated
May 17, 2016
Record last verified: 2016-05