NCT05928741

Brief Summary

This study investigated the short-term effects of fruit juice enriched with vitamin D3, n-3 fatty acids, and probiotics on subjective appetite, energy intake, and glycemic responses, in both normal-weight and overweight, healthy adults.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Feb 2023

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 2, 2023

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

June 24, 2023

Completed
9 days until next milestone

First Posted

Study publicly available on registry

July 3, 2023

Completed
29 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2023

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 15, 2023

Completed
Last Updated

June 11, 2024

Status Verified

June 1, 2024

Enrollment Period

6 months

First QC Date

June 24, 2023

Last Update Submit

June 9, 2024

Conditions

Keywords

subjective appetitefeeding behaviorglycemic responsesenriched juiceprobioticsvitamin D3n-3 fatty acids

Outcome Measures

Primary Outcomes (1)

  • 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 100 mm and width of 3 desktop publishing points, that 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 "100" as numerical anchors below the left and right endpoints, respectively.

    7 hours

Secondary Outcomes (1)

  • Energy intake after preload and the next 24 hours

    24 hours

Other Outcomes (2)

  • Capillary blood glucose responses

    7 hours

  • Blood pressure

    7 hours

Study Arms (2)

Orange juice with vitamin D3, n-3 fatty acids, and probiotics as preload

EXPERIMENTAL

Twenty-three healthy adults with normal weight and twenty-three healthy adults with overweight consumed a standardized breakfast after a 12-hour fast. Two hours later they were given 50 g of available carbohydrates from the two preloads (enriched orange juice or control orange juice) in a random order, and 3 hours after the preload they were offered an ad libitum lunch. Foods were weighed at the time of serving and any leftovers were weighed again after lunch to determine the amount of food consumed. There was a washout period of at least one week between the two visits. Fingertip capillary blood glucose samples were collected at baseline and at several time points after food intake. Visual analog scales (VAS) of 100 mm were collected to assess subjective appetite. Blood pressure was measured at several time-points.

Behavioral: Orange juice with vitamin D3, n-3 fatty acids, and probiotics as preload

Control orange juice without vitamin D3, n-3 fatty acids, and probiotics as preload

EXPERIMENTAL

Twenty-three healthy adults with normal weight and twenty-three healthy adults with overweight consumed a standardized breakfast after a 12-hour fast. Two hours later they were given 50 g of available carbohydrates from the two preloads (enriched orange juice or control orange juice) in a random order, and 3 hours after the preload they were offered an ad libitum lunch. Foods were weighed at the time of serving and any leftovers were weighed again after lunch to determine the amount of food consumed. There was a washout period of at least one week between the two visits. Fingertip capillary blood glucose samples were collected at baseline and at several time points after food intake. Visual analog scales (VAS) of 100 mm were collected to assess subjective appetite. Blood pressure was measured at several time-points.

Behavioral: Orange juice with vitamin D3, n-3 fatty acids, and probiotics as preload

Interventions

Twenty-three healthy adults with normal weight and twenty-three healthy adults with overweight consumed a standardized breakfast consisting of 2 slices of white bread and honey (350 kcal in total) after a 12-hour fast. Two hours later they were offered 347 mL of the enriched orange juice (containing 50 g available carbohydrates), and 3 hours after the preload they were offered an ad libitum lunch (chicken breast with white rice). Foods were weighed at the time of serving and any leftovers were weighed again after lunch to determine the amount of food consumed. Fingertip capillary blood glucose samples and visual analog scales (VAS) of 100 mm were collected at baseline and at 60, 120, 135, 150, 180, 210, 240, 270, 300, 330, 360, 390, and 420 minutes after breakfast consumption. Blood pressure was measured at baseline, 120, 300, and 420 minutes.

Control orange juice without vitamin D3, n-3 fatty acids, and probiotics as preloadOrange juice with vitamin D3, n-3 fatty acids, and probiotics as preload

Eligibility Criteria

Age18 Years - 55 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Healthy Non-diabetic men and women Body mass index between 18.5 and 29.9 kg/m2

You may not qualify if:

  • Severe chronic disease (i.e., cardiovascular diseases, diabetes mellitus, kidney or liver conditions, endocrine conditions)
  • Gastrointestinal disorders
  • Pregnancy
  • Lactation
  • Competitive sports
  • Alcohol abuse
  • Drug dependency

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Agricultural University of Athens

Athens, Attica, 11855, Greece

Location

MeSH Terms

Conditions

Feeding Behavior

Interventions

CholecalciferolFatty Acids, Omega-3Probiotics

Condition Hierarchy (Ancestors)

Behavior, AnimalBehavior

Intervention Hierarchy (Ancestors)

CholestenesCholestanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSterolsVitamin DSecosteroidsMembrane LipidsLipidsDietary Fats, UnsaturatedDietary FatsFatsFatty Acids, UnsaturatedFatty AcidsFish OilsOilsDietary SupplementsFoodDiet, Food, and NutritionPhysiological PhenomenaFood and Beverages

Study Officials

  • Aimilia Papakonstantinou, PhD

    Agricultural University of Athens

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Triple-blind (participant, investigator, outcomes assessor)
Purpose
OTHER
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

June 24, 2023

First Posted

July 3, 2023

Study Start

February 2, 2023

Primary Completion

August 1, 2023

Study Completion

September 15, 2023

Last Updated

June 11, 2024

Record last verified: 2024-06

Locations