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Postprandial Response to Fruit Juice

A Randomized, Crossover, Controlled Trial Investigating the Effects of Different Cranberry-Based Beverages on Postprandial Glucose, Insulin, and GLP-1

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07103083
Enrollment
18
Registered
2025-08-05
Start date
2025-07-21
Completion date
2025-10-29
Last updated
2025-08-05

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

Conditions

Blood Glucose, Blood Insulin

Keywords

fruit juice, blood glucose, metabolic health

Brief summary

The goal of this clinical trial is to determine postprandial responses to fruit juices.

Detailed description

Fruit juice is commonly consumed as a part of a balanced diet because of hydration, flavor, and nutrient content . Dietary Guidelines for Americans 2020-2025 recognizes 100% fruit juice as a nutrient-dense beverage that can contribute to fruit and nutrient intake . Liquid form of juices may lead to faster absorption and hormonal responses . Measuring these acute metabolic responses can help clarify the role of fruit juice in dietary patterns and metabolic health .

Interventions

DIETARY_SUPPLEMENTBeverage 1

Fruit juice with zero sugar

DIETARY_SUPPLEMENTBeverage 2

Fruit juice with low sugar - formulation 1

DIETARY_SUPPLEMENTBeverage 3

Fruit juice with low sugar - formulation 2

DIETARY_SUPPLEMENTBeverage 4

Fruit juice with full sugar

DIETARY_SUPPLEMENTBeverage 5

Fruit juice with full sugar

DIETARY_SUPPLEMENTBeverage 6

Glucose control beverage

Sponsors

Biofortis Innovation Services
CollaboratorINDUSTRY
Ocean Spray Cranberries, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

1. ≥18 to ≤45 years of age at Visit 1. 2. BMI ≥18.5 and \<30.0 kg/m2 at Visit 1. 3. Fasting capillary glucose ≤110 mg/dL at Visit 1. 4. Willing to avoid consuming high-polyphenol containing foods for 48 hours prior to each test visit. 5. Willing to abstain from alcohol consumption for 24 hours prior to each study visit. 6. Non-user of tobacco or nicotine products (e.g., cigarette smoking, vaping, chewing tobacco) within 12 months of Visit 1, with no plans to begin use during the study period. 7. Non-habitual users (i.e., daily or almost daily) of marijuana or hemp products, including Cannabidiol (CBD)/Tetrahydrocannabinol (THC) products, and willing to abstain from use throughout the study period (topical creams/lotions are allowed). 8. Willing to maintain habitual physical activity level throughout the duration of the study. 9. Willing to maintain habitual dietary pattern throughout the duration of the study, including stable intake of current vitamins, minerals, supplements and medications not interfering with study outcomes. 10. Score of 7 to 10 on the Vein Access Scale at Visit 1. 11. No health conditions that would prevent him/her from fulfilling the study requirements as judged by the Clinical Investigator on the basis of medical history. 12. Understands the study procedures and signs forms providing informed consent to participate in the study and authorizes the release of relevant protected health information to the Clinical Investigator.

Exclusion criteria

1. History or presence of clinically important cardiac, renal, hepatic, endocrine, pulmonary, biliary, pancreatic, gastrointestinal, or neurological disorders that may affect the participant's ability to adhere to the study protocol and/or affect study outcomes, in the judgment of the Clinical Investigator. 2. Uncontrolled hypertension (systolic blood pressure ≥140 mm Hg or diastolic blood pressure ≥90 mm Hg) as defined by the blood pressure measured at Visit 1 (Section 9.1.1). 3. Unstable use (initiation or change in dose) within 30 days of Visit 1 of antihypertensive medications. 4. Unstable use (initiation or change in dose) within 30 days of Visit 1 of thyroid hormone replacement medications. 5. Use of medications or supplements that may influence carbohydrate metabolism within 30 days of Visit 1. 6. Extreme dietary habits (e.g., ketogenic, very high protein, very high fiber, vegan, vegetarian) at the discretion of the Clinical Investigator. 7. Weight loss or gain \>4.5 kg in the 60 days prior to Visit 1. 8. Currently, or planning to be, on a weight loss regimen during the study. 9. Use of weight loss medication within 90 days of Visit 1. 10. History of gastrointestinal surgery for weight reducing purposes. 11. History of an eating disorder (e.g., anorexia nervosa, bulimia nervosa, or binge eating) diagnosed by a health professional. 12. Known allergy or sensitivity to any ingredients or potential allergens contained in the study beverages. 13. History or presence of cancer in the prior 2 years, except for non-melanoma skin cancer. 14. History of any major trauma or major surgical event within 60 days of Visit 1. 15. Blood donation \>450 mL within 60 days of Visit 2 or plans to donate blood or plasma during the study period. 16. Female who is pregnant, planning to be pregnant during the study period, lactating, or is of childbearing potential with unstable use (initiation or change in dose) within 30 days of Visit 1) of sex hormones for contraception. 17. Recent history of (within 12 months of screening; Visit 1) or strong potential for alcohol or substance abuse. Alcohol abuse is defined as \>14 drinks per week (1 drink = 12 oz beer, 5 oz wine, or 1½ oz distilled spirits). 18. Exposed to any non-registered drug product within 30 days prior to Visit 1. 19. Any condition the Clinical Investigator believes would interfere with the participant's ability to provide informed consent or comply with the study protocol, which might confound the interpretation of the study results or put the person at undue risk.

Design outcomes

Primary

MeasureTime frameDescription
Blood glucose iAUC - 2 hours2 hoursGlucose incremental area under the curve (iAUC) from pre-product consumption to 120 min

Secondary

MeasureTime frameDescription
Blood glucose time to max concentration2 hoursPlasma glucose time to Cmax
Blood glucose change2 hoursPlasma glucose concentration change from (C-max) - (C-baseline))
Blood insulin iAUC2 hoursSerum insulin incremental area under the curve (iAUC) from pre-product consumption to 120 min
Blood insulin maximal concentration2 hoursSerum insulin maximal concentration (C-max)
Blood insulin time to max concentration2 hoursSerum insulin time to C-max
Blood glucose maximal concentration2 hoursPlasma glucose maximal concentration (Cmax)
GLP-1 iAUC2 hoursGLP-1 incremental area under the curve (iAUC) from pre-product consumption to 120 min
GLP-1 Maximal Concentration2 hoursGLP-1 maximal concentration (C-max)
GLP-1 Time to Max Concentration2 hoursGLP-1 time to C-max
GLP-1 Change2 hoursGLP-1 concentration change from (C-max - (C-baseline))
Blood insulin change2 hoursSerum insulin concentration change from (C-max - (C-baseline))

Countries

United States

Contacts

Primary ContactKristen S Smith, PhD, RD
ksmith@oceanspray.com508-946-7204
Backup ContactChristina Khoo, PhD
ckhoo@oceanspray.com508-946-7925

Outcome results

None listed

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