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Acute Effect of Crocus Sativus on Postprandial Glycemia

Acute Effect of Two Doses of Crocus Sativus on Postprandial Glycemia: A Randomized Clinical Trial in Healthy Humans

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05484362
Enrollment
11
Registered
2022-08-02
Start date
2022-06-06
Completion date
2022-07-26
Last updated
2022-08-02

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

Conditions

Appetitive Behavior, Blood Pressure, Potential Abnormality of Glucose Tolerance

Keywords

Crocus sativus, Blood glucose responses, blood pressure, subjective appetite, blood glucose concentrations

Brief summary

This study investigated the effects of two different doses of Crocus Sativus in glucose beverages on glycemic responses.

Detailed description

This study examined the short-term effects of two different doses (15 mg and 30 mg) of Crocus Sativus in glucose beverages on postprandial glycemic responses in healthy young adults.

Interventions

OTHERD-Glucose beverage as reference food

Eleven healthy subjects (male: 6, female: 5) after 10-14h fast, consumed 50 g D-glucose, three times, in different weeks along with 250 mL water; and 50 g D-glucose containing 15 mg and 30 mg of Crocus Sativus tested once, in different weeks along with 250 mL water. Fingertip capillary blood glucose samples were taken at 0, 15, 30, 45, 60, 90 and 120 min postmeal. The first glucose sample was taken exactly 15 min after the beginning of the consumption of the tested beverage.

OTHER15mg of Crocus Sativus as beverage

Eleven healthy subjects (male: 6, female: 5) after 10-14h fast, consumed 50 g D-glucose, three times, in different weeks along with 250 mL water; and 50 g D-glucose containing 15 mg and 30 mg of Crocus Sativus tested once, in different weeks along with 250 mL water. Fingertip capillary blood glucose samples were taken at 0, 15, 30, 45, 60, 90 and 120 min postmeal. The first glucose sample was taken exactly 15 min after the beginning of the consumption of the tested beverage.

OTHER30mg of Crocus Sativus as beverage

Eleven healthy subjects (male: 6, female: 5) after 10-14h fast, consumed 50 g D-glucose, three times, in different weeks along with 250 mL water; and 50 g D-glucose containing 15 mg and 30 mg of Crocus Sativus tested once, in different weeks along with 250 mL water. Fingertip capillary blood glucose samples were taken at 0, 15, 30, 45, 60, 90 and 120 min postmeal. The first glucose sample was taken exactly 15 min after the beginning of the consumption of the tested beverage.

Sponsors

Agricultural University of Athens
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
DOUBLE (Subject, Investigator)

Masking description

A researcher not involved in data analyses was responsible for participant allocation and test food consumption.

Intervention model description

Crossover, double blind, randomized clinical trial

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy * Non-smoking * Non-diabetic men and women * Body Mass Index (BMI) between 18.5 and 24.9 kg/m2 * Normal blood pressure

Exclusion criteria

* Severe chronic disease (e.g., coronary heart disease, diabetes mellitus, kidney or liver conditions, endocrine conditions) * Gastrointestinal disorders * Pregnancy * Lactation * Competitive sports * Alcohol abuse * Drug dependency * Allergy in Crocus Sativus

Design outcomes

Primary

MeasureTime frameDescription
Capillary blood glucose responses2 hoursClinically useful change in blood glucose, defined as the restoration of glucose within normal limits during the 2-hour oral glucose tolerance test

Secondary

MeasureTime frameDescription
Subjective appetite ratings2 hoursUseful change in subjective appetite using visual analogue scales with a score from 0 to 10 (given in the form of booklet, one scale per page) at baseline, 15, 30, 45, 60, 90 and 120 min. The minimum or maximum score will be evaluated if it is better or worse depending on the appetite variable e.g., hunger, satiety, desire to eat etc.
Blood pressure2 hoursUseful change in systolic and diastolic blood pressure before and 2-hour after consumption of the three beverages

Countries

Greece

Outcome results

None listed

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