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Effects of a Hemp Seed-based Product on Appetite and Health Parameters

2026. november 2. frissítette: Beste EKER, Halic University

Development of Products Containing Hemp Seeds and the Determination of Their Effects on Appetite Parameters, Body Composition, Sleep Quality, and Blood Parameters

This study aims to develop a snack containing hemp seeds and to investigate the potential effects of its consumption on appetite parameters, body composition, and blood markers in healthy participants. It is expected that this study will provide the scientific community with new, evidence-based, and comprehensive data regarding the potential use of hemp seeds in human nutrition and their role in clinical outcomes.

A tanulmány áttekintése

Állapot

Toborzás

Körülmények

Beavatkozás / kezelés

Részletes leírás

The objective of this study is to evaluate the clinical effects of regular consumption of a newly developed hemp seed-based snack over a period of 8 weeks. The study consists of two sequential stages: product development and a clinical trial.

  1. Product Development: Development of five different grissini/cracker formulations with hemp seed content ranging from 0% to 25%, followed by the selection of the most preferred formulation based on sensory evaluation by a trained panel of 12 individuals. This panel will take place at the Haliç University Nutrition Principles Laboratory.
  2. Clinical Trial: A randomized, parallel-group, triple-blind, controlled clinical trial (lasting 8 weeks) involving 70 healthy participants aged 25-45. The clinical implementation stage of the study will be carried out at the SOCAR Istanbul.

Participants in the intervention group will consume the product formulation selected during the product development phase, while those in the control group will consume an isocaloric snack that does not contain hemp seeds. Both groups will receive general education regarding the Mediterranean-style dietary pattern.

Changes in body composition, appetite status, gastrointestinal symptoms, and sleep quality will be monitored every two weeks. Fasting blood samples will be analyzed at the beginning of the study (week 0) and after the intervention (week 8) to assess lipid profiles, glycemic control, and markers of liver function.

Tanulmány típusa

Beavatkozó

Beiratkozás (Becsült)

70

Fázis

  • Nem alkalmazható

Kapcsolatok és helyek

Ez a rész a vizsgálatot végzők elérhetőségeit, valamint a vizsgálat lefolytatásának helyére vonatkozó információkat tartalmazza.

Tanulmányi kapcsolat

Tanulmányozza a kapcsolattartók biztonsági mentését

Tanulmányi helyek

Részvételi kritériumok

A kutatók olyan embereket keresnek, akik megfelelnek egy bizonyos leírásnak, az úgynevezett jogosultsági kritériumoknak. Néhány példa ezekre a kritériumokra a személy általános egészségi állapota vagy a korábbi kezelések.

Jogosultsági kritériumok

Tanulmányozható életkorok

25 év (Felnőtt)

Egészséges önkénteseket fogad

Igen

Tanulmányozható nemek

Összes

Leírás

Inclusion Criteria:

  • Healthy male or female individuals aged 25 to 45 years.

  • Body Mass Index (BMI) within the following categories:

    • Normal weight (BMI: 18.5 - 24.9 kg/m²)
    • Overweight (BMI: 25.0 - 29.9 kg/m²)
    • Obese (BMI >= 30.0 kg/m²)

  • Free of any diagnosed chronic diseases or metabolic disorders.

  • Demonstrating good compliance with product consumption protocols and study timelines.

  • Voluntarily signing the Informed Consent Form.

Exclusion Criteria:

  • Known food allergies or intolerances, particularly to hempseed, other seeds, or oily nuts.
  • History of significant gastrointestinal diseases or recurrent severe digestive complaints.
  • Current pregnancy or lactation.
  • Following a vegan or vegetarian diet (to ensure baseline dietary standardization).
  • Experiencing new health problems during the intervention that could affect the study outcomes.
  • Unwillingness or inability to comply with product consumption and data collection procedures.

Tanulási terv

Ez a rész a vizsgálati terv részleteit tartalmazza, beleértve a vizsgálat megtervezését és a vizsgálat mérését.

Hogyan készül a tanulmány?

Tervezési részletek

  • Elsődleges cél: Alapvető tudomány
  • Kiosztás: Véletlenszerűsített
  • Beavatkozó modell: Párhuzamos hozzárendelés
  • Maszkolás: Hármas

Fegyverek és beavatkozások

Résztvevő csoport / kar
Beavatkozás / kezelés
Kísérleti: Hempseed Snack Group

Participants in this arm will consume a standardized daily functional snack (grissini/cracker) containing hempseed for 8 weeks. Both groups will also receive general nutritional education on the Mediterranean diet model.
Egyéb: hempseed snack

A specially formulated grissini/cracker snack containing hemp seeds. Participants will consume this snack daily for 8 weeks to evaluate its effects on metabolic and physiological parameters, thereby ingesting a specific amount of hemp seeds (the exact quantity to be determined based on the panel results).
Placebo Comparator: Control Snack Group

Participants in this arm will consume a control snack (grissini/cracker) with 0% hempseed for 8 weeks. The snack matches the intervention product in appearance, weight, taste, and texture. Both groups will also receive general nutritional education on the Mediterranean diet model.
Egyéb: control snack

A control grissini/cracker snack containing 0% hemp seeds will be developed. To maintain a triple-blind protocol, this snack will be designed to be identical to the experimental snack in terms of appearance, weight, flavor, and texture. The snack in question will be consumed daily for a period of 8 weeks.

Mit mér a tanulmány?

Elsődleges eredményintézkedések

Eredménymérő
Intézkedés leírása
Időkeret
Change from Baseline in Hunger Score
Időkeret: Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.

Hunger will be assessed using a 100-mm (10 cm) Visual Analog Scale (VAS), ranging from 0 to 100 mm (10 cm). Higher scores indicate greater subjective hunger.

Hunger: 0 = Not hungry at all, 100 = Extremely hungry.
Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.
Change from Baseline in Fullness Score
Időkeret: Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.

Subjective fullness will be assessed using a 100-mm (10 cm) Visual Analog Scale (VAS), ranging from 0 to 100 mm (10 cm). Higher scores indicate greater subjective fullness.

Fullness: 0 = Not full at all, 100 = Extremely full.
Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.
Change from Baseline in Desire to Eat Score
Időkeret: Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.

Desire to eat will be assessed using a 100-mm (10 cm) Visual Analog Scale (VAS), ranging from 0 to 100 mm (10 cm). Higher scores indicate a greater desire to eat.

Desire to Eat: 0 = No desire to eat, 100 = Extremely strong desire to eat.
Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.

Másodlagos eredményintézkedések

Eredménymérő
Intézkedés leírása
Időkeret
Change from Baseline in Body Weight
Időkeret: Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.

Body weight will be measured in kilograms (kg) using the Tanita BC-418 body composition analyzer. Changes in body weight from baseline throughout the intervention will be evaluated.
Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.
Change from Baseline in Body Mass Index (BMI)
Időkeret: Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.

Body mass index (BMI) will be calculated using body weight measured with the Tanita BC-418 body composition analyzer and height measured using a stadiometer. BMI will be calculated as body weight in kilograms divided by height in meters squared (kg/m²). Changes in BMI from baseline throughout the intervention will be evaluated.
Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.
Change from Baseline in Body Fat Percentage
Időkeret: Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.

Body fat percentage will be assessed using bioelectrical impedance analysis (BIA) with the Tanita BC-418 body composition analyzer and expressed as a percentage (%). Changes in body fat percentage from baseline throughout the intervention will be evaluated.
Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.
Change from Baseline in Fat Mass
Időkeret: Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.

Fat mass will be assessed using bioelectrical impedance analysis (BIA) with the Tanita BC-418 body composition analyzer and expressed in kilograms (kg). Changes in fat mass from baseline throughout the intervention will be evaluated.
Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.
Change from Baseline in Fat-Free Mass
Időkeret: Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.

Fat-free mass (FFM) will be assessed using bioelectrical impedance analysis (BIA) with the Tanita BC-418 body composition analyzer and expressed in kilograms (kg). Fat-free mass represents total body mass excluding fat mass. Changes in fat-free mass from baseline throughout the intervention will be evaluated.
Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.
Change from Baseline in Gastrointestinal Symptom Rating Scale Score
Időkeret: Baseline (Week 0), Week 4, and Week 8.

Gastrointestinal symptoms will be assessed using the Turkish-adapted and validated version of the Gastrointestinal Symptom Rating Scale (GSRS) (Turan et al., 2017). The scale consists of 15 items rated on a 7-point Likert scale (1-7), covering five symptom domains: abdominal pain, reflux, indigestion, diarrhea, and constipation. Higher scores indicate more severe gastrointestinal symptoms. Total and/or domain scores will be evaluated according to the scale scoring guidelines.
Baseline (Week 0), Week 4, and Week 8.
Change from Baseline in Pittsburgh Sleep Quality Index Score
Időkeret: Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.

Sleep quality will be assessed using the Turkish-adapted and validated version of the Pittsburgh Sleep Quality Index (PSQI) (Ağargün et al., 1996). The questionnaire consists of 10 main questions and evaluates seven components of sleep quality. Each component is scored from 0 to 3, yielding a global score ranging from 0 to 21. Higher scores indicate poorer sleep quality, and scores greater than 5 indicate poor sleep quality.
Baseline (Week 0), Week 2, Week 4, Week 6, and Week 8.
Change from Baseline in Total Cholesterol Levels
Időkeret: Baseline (Week 0) and Week 8.

Total cholesterol levels will be measured in fasting venous blood samples and expressed in milligrams per deciliter (mg/dL). Changes in total cholesterol levels from baseline to the end of the intervention will be evaluated.
Baseline (Week 0) and Week 8.
Change from Baseline in LDL Cholesterol Levels
Időkeret: Baseline (Week 0) and Week 8.

Low-density lipoprotein cholesterol (LDL-C) levels will be measured in fasting venous blood samples and expressed in milligrams per deciliter (mg/dL). Changes in LDL-C levels from baseline to the end of the intervention will be evaluated. Higher levels generally indicate a less favorable lipid profile.
Baseline (Week 0) and Week 8.
Change from Baseline in HDL Cholesterol Levels
Időkeret: Baseline (Week 0) and Week 8.

High-density lipoprotein cholesterol (HDL-C) levels will be measured in fasting venous blood samples and expressed in milligrams per deciliter (mg/dL). Changes in HDL-C levels from baseline to the end of the intervention will be evaluated. Higher levels generally indicate a more favorable lipid profile.
Baseline (Week 0) and Week 8.
Change from Baseline in Triglyceride Levels
Időkeret: Baseline (Week 0) and Week 8.

Triglyceride levels will be measured in fasting venous blood samples and expressed in milligrams per deciliter (mg/dL). Changes in triglyceride levels from baseline to the end of the intervention will be evaluated. Higher levels indicate an unfavorable lipid profile.
Baseline (Week 0) and Week 8.
Change from Baseline in Fasting Blood Glucose Levels
Időkeret: Baseline (Week 0) and Week 8.

Fasting blood glucose levels will be measured in venous blood samples after at least 8 hours of fasting and expressed in milligrams per deciliter (mg/dL). Changes in fasting blood glucose levels from baseline to the end of the intervention will be evaluated.
Baseline (Week 0) and Week 8.
Change from Baseline in Fasting Insulin Levels
Időkeret: Baseline (Week 0) and Week 8.

Fasting insulin levels will be measured in venous blood samples after at least 8 hours of fasting and expressed in microinternational units per milliliter (μIU/mL). Changes in fasting insulin levels from baseline to the end of the intervention will be evaluated.
Baseline (Week 0) and Week 8.
Change from Baseline in Glycated Hemoglobin (HbA1c) Levels
Időkeret: Baseline (Week 0) and Week 8.

Glycated hemoglobin (HbA1c) levels will be measured in venous blood samples and expressed as a percentage (%). HbA1c reflects average blood glucose levels over approximately the previous 2-3 months. Changes in HbA1c levels from baseline to the end of the intervention will be evaluated.
Baseline (Week 0) and Week 8.
Change from Baseline in Homeostatic Model Assessment of Insulin Resistance (HOMA-IR)
Időkeret: Baseline (Week 0) and Week 8.

Insulin resistance will be assessed using the Homeostatic Model Assessment of Insulin Resistance (HOMA-IR), calculated using fasting insulin (μIU/mL) and fasting blood glucose (mg/dL) concentrations. HOMA-IR will be calculated as fasting insulin multiplied by fasting blood glucose divided by 405. Higher HOMA-IR values indicate greater insulin resistance.
Baseline (Week 0) and Week 8.
Change from Baseline in Alanine Aminotransferase (ALT) Levels
Időkeret: Baseline (Week 0) and Week 8.

Alanine aminotransferase (ALT) levels will be measured in venous blood samples and expressed in units per liter (U/L). Changes in ALT levels from baseline to the end of the intervention will be evaluated. Elevated ALT levels may indicate hepatocellular injury.
Baseline (Week 0) and Week 8.
Change from Baseline in Aspartate Aminotransferase (AST) Levels
Időkeret: Baseline (Week 0) and Week 8.

Aspartate aminotransferase (AST) levels will be measured in venous blood samples and expressed in units per liter (U/L). Changes in AST levels from baseline to the end of the intervention will be evaluated. Elevated AST levels may indicate tissue injury, including liver or muscle injury.
Baseline (Week 0) and Week 8.

Együttműködők és nyomozók

Itt találhatja meg a tanulmányban érintett személyeket és szervezeteket.

Szponzor

Halic University

Nyomozók

  • Kutatásvezető: Ahmet M Gunal, Assoc. Prof. Dr., Halic University and SOCAR İstanbul

Tanulmányi rekorddátumok

Ezek a dátumok nyomon követik a ClinicalTrials.gov webhelyre benyújtott vizsgálati rekordok és összefoglaló eredmények benyújtásának folyamatát. A vizsgálati feljegyzéseket és a jelentett eredményeket a Nemzeti Orvostudományi Könyvtár (NLM) felülvizsgálja, hogy megbizonyosodjon arról, hogy megfelelnek-e az adott minőség-ellenőrzési szabványoknak, mielőtt közzéteszik őket a nyilvános weboldalon.

Tanulmány főbb dátumok

Tanulmány kezdete (Becsült)

2026. november 2.

Elsődleges befejezés (Becsült)

2027. március 25.

A tanulmány befejezése (Becsült)

2027. március 25.

Tanulmányi regisztráció dátumai

Először benyújtva

2026. október 18.

Először nyújtották be, amely megfelel a minőségbiztosítási kritériumoknak

2026. november 2.

Első közzététel (Tényleges)

2026. november 4.

Tanulmányi rekordok frissítései

Utolsó frissítés közzétéve (Tényleges)

2026. november 4.

Az utolsó frissítés elküldve, amely megfelel a minőségbiztosítási kritériumoknak

2026. november 2.

Utolsó ellenőrzés

2026. november 1.

Több információ

A tanulmányhoz kapcsolódó kifejezések

Kulcsszavak

Egyéb vizsgálati azonosító számok

  • 2026-12/145

Terv az egyéni résztvevői adatokhoz (IPD)

Tervezi megosztani az egyéni résztvevői adatokat (IPD)?

NEM

IPD terv leírása

to protect participant confidentiality and ensure institutional data security guidelines, individual participant data will not be shared. The scientific findings will be thoroughly disclosed through the finalized doctoral thesis and peer-reviewed journal publications.

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