Strategies To OPpose Sugars With Non-nutritive Sweeteners Or Water (STOP Sugars NOW) Trial
A Randomized Controlled Trial of the Effect of Replacing Sugar-sweetened Beverages With Non-nutritive Sweetened Beverages or Water on Gut Microbiome and Metabolic Outcomes: STOP Sugars NOW Trial
1 other identifier
interventional
81
1 country
1
Brief Summary
Health authorities recommend a reduction in added sugars from sugar-sweetened beverages (SSBs) due to risk of obesity and diabetes. As a sugar-reduction strategy, finding the ideal SSB replacement is of the utmost importance. Those who are already consuming SSBs might not easily replace it with water and therefore non-nutritive sweetened beverages (NSBs) present a sweetened alternative, though guidelines recommend water instead of NSBs as a replacement for SSBs. Recent evidence suggests that saccharine, a non-nutritive sweetener, which is not found in NSBs, might induce glucose intolerance by altering gut microbiota in humans. It is currently not known if replacing SSBs with NSBs (which contain low-calorie sweeteners other than saccharine) or water will have any effect on the human gut microbiota and any downstream diabetic risk. The investigators plan to undertake a randomized controlled cross-over trial in 75 healthy adults to assess the effect of replacing SSBs with equal amounts of NSBs or water for 4 weeks on the composition and diversity of human gut microbiota, changes in glucose tolerance and total body fat in those who regularly drink SSBs. Each participant will act as their own control receiving each of the three interventions of SSB, NSB and water for four weeks in random order, each period separated by a four-week wash-out period. All study visits will occur at the Clinical Nutrition and Risk Factor Modification Centre at St. Michael's Hospital. This study will contribute to knowledge that will inform dietary guidelines and public policy with regards to the best possible replacement for SSBs. It will also shed light on the potential mechanism of the adverse effects of NSBs and if the replacement of SSBs by NSBs or water are in fact similar with respect to their effect on gut bacteria and any downstream diabetic risk.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable healthy
Started May 2018
Longer than P75 for not_applicable healthy
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
First Submitted
Initial submission to the registry
May 2, 2018
CompletedStudy Start
First participant enrolled
May 31, 2018
CompletedFirst Posted
Study publicly available on registry
June 1, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 15, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
October 15, 2020
CompletedApril 29, 2021
April 1, 2021
2.4 years
May 2, 2018
April 26, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Gut microbiome composition measured by 16S rRNA gene sequencing
Week 0 and week 4 of each intervention
75g OGTT derived plasma glucose iAUC
Week 0 and week 4 of each intervention
Secondary Outcomes (5)
Change in waist circumference
Week 0 and week 4 of each intervention
Change in body weight
Week 0 and week 4 of each intervention
Change in fasting plasma glucose
Week 0 and week 4 of each intervention
75g OGTT derived 2-hour plasma glucose [2h-PG]
Week 0 and week 4 of each intervention
75g OGTT derived Matsuda whole body insulin sensitivity index [Matsuda ISI OGTT]
Week 0 and week 4 of each intervention
Other Outcomes (35)
Ectopic fat in liver (intra-hepatocellular lipid [IHCL]) by 1H-MRS (sub-study, n=30)
Week 0 and week 4 of each intervention
Ectopic fat in calf muscles (intra-myocellular lipid [IMCL]) by 1H-MRS (sub-study, n=30)
Week 0 and week 4 of each intervention
Fasting plasma insulin
Week 0 and week 4 of each intervention
- +32 more other outcomes
Study Arms (3)
Sugar-sweetened beverage (SSB)
ACTIVE COMPARATORThe SSB intervention will consist the participants' consuming their usual serving of cans SSBs (each 355 ml, 42 grams sugar) per day. The calories of the SSB group will not be matched to allow for "real-world" substitutions using products available on the market.
Non-nutritive sweetened beverage (NSB)
EXPERIMENTALThe NSB intervention consists of substituting the participants' usual serving of cans SSBs with NSBs (each 355 ml, 0 grams sugar) per day. The calories of the NSB group will not be matched to allow for "real-world" substitutions using products available on the market.
Water
EXPERIMENTALThe water intervention consists of substituting the participants' usual serving of cans SSBs with bottles or cans of still or sparkling water (each 355 ml bottle or can, 0 grams sugar) per day. The calories of the water group will not be matched to allow for "real-world" substitutions using products available on the market.
Interventions
SSBs will be provided to each participant. Participants will be able to choose their SSB of choice from the list in the protocol. They will be instructed to drink their usual SSB intake, study drinks provided, while freely consume their usual background diets. They will revert to their usual SSB intake during wash-out phase during which they will not receive any beverage drinks from the study.
NSBs will be provided to each participant. Participants will be be given the NSB equivalent to the usual SSB chosen from the list in the protocol. They will be instructed to replace their usual SSBs with the NSBs while freely consume their usual background diets. They will revert to their usual SSB intake during wash-out phase during which they will not receive any beverage drinks from the study.
Water will be provided to each participant. They will be instructed to replace their usual SSBs with the water while freely consume their usual background diets. They will revert to their usual SSB intake during wash-out phase during which they will not receive any beverage drinks from the study.
Eligibility Criteria
You may qualify if:
- Healthy, adult (age, 18-75 years) men and non-pregnant women;
- Overweight or obese (BMI \> 23 kg/m2 for Asian individuals and \> 25 kg/m2 other individuals);
- High waist circumference (\> 94 cm in men, \> 80 cm in women in Europid, Sub-Saharan African, Eastern Mediterranean, and Middle Eastern individuals; \> 90 cm in men and \> 80 cm in women for South Asian, Chinese, Japanese, and South and Central American individuals);
- Currently report drinking SSBs regularly (≥ 1 serving daily);
- Have a primary care physician;
- Nonsmoker;
- Free of any diseases or illnesses;
- Not regularly taking any medications that have a clinically relevant effect on the primary outcomes, as deemed inappropriate by investigators
You may not qualify if:
- Age \< 18 or \> 75 years;
- BMI \< 23 kg/m2 for Asian individuals and \< 25 kg/m2 other individuals;
- Waist circumference \< 94cm in men, \< 80cm in women in Europid, Sub-Saharan African, Eastern Mediterranean, and Middle Eastern individuals; \< 90cm in men and \< 80 cm in women for South Asian, Chinese, Japanese, and South and Central American individuals;
- Not regularly drinking SSBs (≥1 serving per day);
- Pregnant or breast feeding females, or women planning on becoming pregnant throughout study duration;
- Regular medication use that have a clinically relevant effect on the primary outcomes, as deemed inappropriate by investigators
- Antibiotic use in the last 3 months;
- Complementary or alternative medicine (CAM) use as deemed inappropriate by investigators;
- Self-reported diabetes;
- Self-reported uncontrolled hypertension (or systolic blood pressure (BP) ≥ 160 mmHg or diastolic BP ≥ 100 mmHg \[26\]);
- Self-reported polycystic ovarian syndrome;
- Self-reported cardiovascular disease;
- Self-reported gastrointestinal disease;
- Previous bariatric surgery;
- Self-reported liver disease;
- +15 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
St. Michael's Hospital
Toronto, Ontario, M5C2T2, Canada
Related Publications (57)
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PMID: 36904237DERIVEDBergwall S, Johansson A, Sonestedt E, Acosta S. High versus low-added sugar consumption for the primary prevention of cardiovascular disease. Cochrane Database Syst Rev. 2022 Jan 5;1(1):CD013320. doi: 10.1002/14651858.CD013320.pub2.
PMID: 34986271DERIVED
Related Links
- Diabetes Canada, Diabetes Canada's Position on sugars.
- Health Canada, Summary of Guiding Principles and Recommendations.
- Unhealthy Food and Beverage Marketing to Children Discussion paper for public consultation.
- Chang K, Artificial Sweeteners May Disrupt Body's Blood Sugar Controls. The New York Times, September 17, 2014.
- Kirkey S, Fake sugars linked to obesity, heart disease. National Post, July 17, 2017.
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MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
John L Sievenpiper, MD,PhD,FRCPC
University of Toronto
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator, Associate Professor, Staff Physician, Scientist
Study Record Dates
First Submitted
May 2, 2018
First Posted
June 1, 2018
Study Start
May 31, 2018
Primary Completion
October 15, 2020
Study Completion
October 15, 2020
Last Updated
April 29, 2021
Record last verified: 2021-04
Data Sharing
- IPD Sharing
- Will not share