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Effects of Sugar-Sweetened and Artificially Sweetened Beverage Consumption on the Gut and Oral Microbiome and Glycemic Responses

Effects of Sugar-Sweetened and Artificially Sweetened Beverage Consumption on the Gut and Oral Microbiome and Glycemic Responses: A Randomized Crossover Study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CRIS
Registry ID
KCT0012095
Enrollment
40
Registered
2026-06-09
Start date
2026-05-04
Completion date
Unknown
Last updated
2026-06-15

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

Conditions

None listed

Interventions

Others(Sugar-sweetened beverages and artificially sweetened beverages) : - This study is a randomized crossover intervention study. Participants will be assigned to two intervention conditions in a ra

Sponsors

Korea Food Research Institute
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Individuals with a BMI between 18.5 and <35 kg/m² (ranging from normal weight to pre–severe obesity) - Individuals able to provide blood, urine, stool, and saliva samples - Individuals who consumed sugar-sweetened or artificially sweetened beverages (based on a 250 mL serving, combined across both types) no more than once per day (i.e., =7 times per week) over the past 3 months - Individuals with no objection to wearing a continuous glucose monitoring device twice for 15 days each on a soft, non-muscular area on the back of the upper arm

Exclusion criteria

Exclusion criteria: - Women who are pregnant or breastfeeding - Individuals with specific food allergies - Individuals with skin inflammation or dermatological conditions - Individuals scheduled to undergo medical procedures involving strong magnetic or electromagnetic radiation during the study period (e.g., MRI, CT scan) - Individuals with gastrointestinal disorders that limit the consumption of carbonated beverages or with phenylketonuria that restricts the intake of artificially sweetened beverages - Patients with glucose–galactose malabsorption or diabetes insipidus - Patients with hypersensitivity or a history of allergy to Sunset Yellow FCF (Yellow No. 5) or Tartrazine (Yellow No. 4) - Individuals who have taken antibiotics within the past 3 months - Individuals with a body weight change of =10% within the past 3 months, or currently following a controlled diet for weight management - Individuals who have participated in another clinical trial within the past 3 months involving administration of an investigational product or dietary intervention - Individuals diagnosed with alcohol dependence - Individuals requiring dietary restrictions due to diseases such as diabetes, hypertension, cardiovascular disease, kidney disease, gastrointestinal disease, fatty liver, or thyroid disorders - Individuals requiring continuous blood glucose management or currently receiving pharmacological treatment such as antidiabetic drugs or insulin - Individuals taking medications that may affect body weight - Individuals presenting with acute illness (e.g., fever) at the set-up visit or baseline visit (study start date) - Individuals with a history of major gastrointestinal surgery (except cholecystectomy or appendectomy) or bowel resection within the past 6 months - Individuals with uncontrolled active gastrointestinal diseases or disorders - Individuals with a history of cardiovascular diseases (e.g., heart failure, myocardial infarction, stroke), renal diseases (e.g., chronic kidney failure, nephrotic syndrome), pulmonary diseases (e.g., asthma, chronic obstructive pulmonary disease), or hepatitis B or C - Individuals with a history of cancer, except for localized resected squamous cell carcinoma or basal cell carcinoma of the skin

Design outcomes

Primary

MeasureTime frame
Gut and oral microbiome composition

Secondary

MeasureTime frame
Postprandial glycemic responses to sugar-sweetened and artificially sweetened beverage consumption;Postprandial glycemic responses under meal conditions including sugar-sweetened and artificially sweetened beverages

Countries

Korea, Republic of

Contacts

Public ContactSangwon Chung

Korea Food Research Institute

schung@kfri.re.kr+82-63-219-9075

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Jun 21, 2026