Acute Effects of Juice Consumption With Biofunctional Compounds and Probiotics on Glucose Metabolism

Potential Abnormality of Glucose Tolerance Clinical Trial

Official title:

Acute Effects of Fruit Juice Enriched With Vitamin D3 or n-3 Fatty Acids or Probiotics and the Combination of the Three Ingredients on Glucose Metabolism in Healthy Adults

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05702359
• Other study ID #: HRBD 78 12.10.2022
• Status: Completed
• Phase: N/A
• Start date: November 2, 2022
• Est. completion date: January 25, 2023

Study information

• Verified date: May 2023
• Source: Agricultural University of Athens
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study investigated the short-term effects of fruit juice enriched with Vitamin D3 or n-3 PUFA or probiotics and the combination of the three ingredients on glucose metabolism.

Description:

This study aimed to 1. Determine the glycemic index and glycemic load of mixed fruit juice (pomegranate, grape, apple, and orange) enriched with Vitamin D3 or n-3 PUFA or probiotics, and the combination of the three bio-functional ingredients, compared to regular mixed fruit juice and the reference food (D-glucose), and 2.Examine the short-term effects of the five mixed fruit juices on postprandial blood glucose and salivary insulin responses, blood pressure, and subjective appetite, in healthy adults.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 11
• Est. completion date: January 25, 2023
• Est. primary completion date: December 20, 2022
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 55 Years

Eligibility

Inclusion Criteria:

• Healthy

• Non-smoking

• Non-diabetic men and women

• Body mass index between 18.5 and 25 kg.m2

Exclusion Criteria:

• Severe chronic disease (e.g. cardiovascular diseases, diabetes mellitus, kidney or liver conditions, endocrine conditions)

• Gastrointestinal disorders

• Pregnancy

• Lactation

• Competitive sports

• Alcohol abuse

• Drug dependency

Related Conditions & MeSH terms

• Appetite Disorders
• Feeding and Eating Disorders
• Potential Abnormality of Glucose Tolerance

Intervention

Other:
• Glucose as reference food
Eleven healthy, normal body weight subjects after 10-14hr fast, consumed 50g glucose diluted in 300mL water, tested two times, in different visits, within 5-10 min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90, 120, 150 and 180 min. Salivary insulin samples were taken at baseline, 15, 30, 45, 60, 90, 120, and 180 min.
• Control juice
Eleven healthy, normal body weight subjects after 10-14hr fast, consumed 50g available carbohydrates from control juice (consisted of pomegranate, grape, apple and orange), tested once, within 5-10 min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90, 120, 150 and 180 min. Salivary insulin samples were taken at baseline, 15, 30, 45, 60, 90, 120, and 180 min.
• Juice with vitamin D3
Eleven healthy, normal body weight subjects after 10-14hr fast, consumed 50g available carbohydrates from juice (consisted of pomegranate, grape, apple and orange) containing vitamin D3, tested once, within 5-10 min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90, 120, 150 and 180 min. Salivary insulin samples were taken at baseline, 15, 30, 45, 60, 90, 120, and 180 min.
• Juice with n-3 fatty acids
Eleven healthy, normal body weight subjects after 10-14hr fast, consumed 50g available carbohydrates from juice (consisted of pomegranate, grape, apple and orange) containing n-3 fatty acids, tested once, within 5-10 min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90, 120, 150 and 180 min. Salivary insulin samples were taken at baseline, 15, 30, 45, 60, 90, 120, and 180 min.
• Juice with probiotics
Eleven healthy, normal body weight subjects after 10-14hr fast, consumed 50g available carbohydrates from juice (consisted of pomegranate, grape, apple and orange) containing probiotics, tested once, within 5-10 min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90, 120, 150 and 180 min. Salivary insulin samples were taken at baseline, 15, 30, 45, 60, 90, 120, and 180 min.
• Juice with probiotics, vitamin D3, and n-3 fatty acids
Eleven healthy, normal body weight subjects after 10-14hr fast, consumed 50g available carbohydrates from juice (consisted of pomegranate, grape, apple and orange) containing probiotics, vitamin D3 and n-3 fatty acids, tested once, within 5-10 min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90, 120, 150 and 180 min. Salivary insulin samples were taken at baseline, 15, 30, 45, 60, 90, 120, and 180 min.

Locations

Country	Name	City	State
Greece	Agricultural University of Athens	Athens	Attica

Sponsors (1)

Lead Sponsor	Collaborator
Agricultural University of Athens

Country where clinical trial is conducted

Greece, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Capillary blood glucose responses	Clinically useful change in blood glucose, defined as the restoration of glucose within normal limits during the 3hr glucose tolerance test	3 hours
Secondary	Salivary insulin responses	Clinically useful change in salivary insulin, defined as the restoration of insulin within normal limits during the 3hr glucose torelance test	3 hours
Secondary	Subjective appetite rating	Useful change in subjective appetite using visual analogue scales (VAS). Participants rated their hunger, desire to eat, perceived fullness, thirst, preoccupation with food, pleasure of eating the consumed test food, and thirst, after eating on a horizontal line VAS, with a line length of 10 cm, a line width of 3 desktop publishing points, was black, had flat line endpoints, had an ascending numerical order of scale endpoints [i.e., "0" and "10", for example neither hungry (0 mm), full (100 mm) or have desire for food in the middle (50 mm)], and used "0" and "10" as numerical anchors below the left and right endpoints, respectively.	3 hours
Secondary	Blood pressure	Useful change in systolic and diastolic blood pressure before and 3hr after consumption of the juices.	3 hours