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Effects of Calamansi on Blood Glucose and Insulin Levels

13. maj 2026 opdateret af: Piyapong Prasertsri, Burapha University

The Effects of Calamansi (Citrus x Macrocarpa Bunge) Supplementation on Blood Glucose and Insulin Levels in Healthy Volunteers

Fifty-four healthy sedentary male and female participants aged 18-30 years will be recruited for this study. Participants will be randomly assigned to one of two groups: a control group receiving placebo MMC capsules (n = 27) or a calamansi capsule supplementation group (n = 27). All participants will undergo health screening procedures, including medical history assessment, mental health questionnaire evaluation, and measurements of vital signs, height, body weight, and body composition. Venous blood samples will subsequently be collected to determine blood glucose, insulin, creatinine, alanine aminotransferase (ALT), and malondialdehyde (MDA) levels. These assessments will be performed at three time points: 1) before capsule supplementation (baseline), 2) following a single dose of capsule supplementation, and 3) after 12 weeks of supplementation.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

54

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

  • Thailand
    • Burapha University
      • Mueang, Burapha University, Thailand, 20131
        • Rekruttering
        • Piyapong Prasertsri
        • Kontakt:
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen

Tager imod sunde frivillige

Ja

Beskrivelse

Inclusion Criteria:

  • Healthy individuals who have not been diagnosed with diabetes or prediabetes, with a fasting blood glucose level (after 8 hours of fasting) of less than 100 mg/dL.
  • Aged between 18-30 years, both male and female
  • Body Mass Index (BMI) between 18.5 and 22.9 kg/m²
  • No diseases affecting blood sugar levels, such as liver or pancreatic diseases

Exclusion Criteria:

  • Pregnant or breastfeeding women
  • Regular smokers
  • Regular alcohol consumers
  • Individuals with a history of allergies to citrus fruits or citrus-derived ingredients
  • Individuals taking medications that affect glucose metabolism and fat distribution in the body, including steroids, protease inhibitors, and psychiatric medications. These refer to drugs that act on the central nervous system and may affect blood sugar levels or energy metabolism, such as antidepressants, antipsychotics, and mood stabilizers.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Tredobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Placebo komparator: MMC powder capsule
Participants will be randomly assigned to an intervention arm. During the short-term phase, participants in the control group will receive microcrystalline cellulose (MMC) capsules and will be instructed to consume 1,500 mg/day (three capsules). During the long-term phase, participants will continue consuming MMC at a dose of 1,500 mg/day (three capsules), taken within 15-30 min after breakfast. All supplementation will be administered at the participants' residences.
Andet: MMC powder capsule
Each capsule contains MMC powder for 500 mg
Eksperimentel: Calamansi powder capsule
Participants will be randomly assigned to an intervention arm. During the short-term phase, participants in the calamansi group will receive calamansi powder capsules and will be instructed to consume 1,500 mg/day (three capsules). During the long-term phase, participants will continue consuming calamansi powder capsules at a dose of 1,500 mg/day (three capsules), taken within 15-30 min after breakfast. All supplementation will be administered at the participants' residences.
Kosttilskud: Calamansi powder capsule
Each capsule contains calamansi powder for 500 mg

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Concentrations of blood glucose
Tidsramme: At 0 minute before consumption, at 30, 60, 90, 120 minutes after consumption, and at days 91 after consumption
Concentrations of blood glucose were measured before and after MMC capsules or calamansi capsule consumption at 500 mg in mg/dL unit
At 0 minute before consumption, at 30, 60, 90, 120 minutes after consumption, and at days 91 after consumption
Concentrations of blood insulin
Tidsramme: At 0 minute before consumption, at 120 minute after consumption, and at days 91 after consumption
Concentrations of blood insulin were measured before and after MMC capsules or calamansi capsule consumption at 500 mg in uU/mL (microunit/milliliter) unit
At 0 minute before consumption, at 120 minute after consumption, and at days 91 after consumption
Concentrations of blood malondialdehyde
Tidsramme: At 0 minute before consumption, at 120 minute after consumption, and at days 91 after consumption
Concentrations of blood malondialdehyde were measured before and after MMC capsules or calamansi capsule consumption at 500 mg in uM (micromolar) unit
At 0 minute before consumption, at 120 minute after consumption, and at days 91 after consumption

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Levels of heart rate variability
Tidsramme: At 0-10 minutes before consumption, at 110-120 minutes after consumption, and at days 91 after consumption for 10 minutes
Heart rate variability were measured before and after MMC capsules or calamansi capsule consumption at 500 mg in ms (milliseconds) and ms2 (millisecond squared) unit
At 0-10 minutes before consumption, at 110-120 minutes after consumption, and at days 91 after consumption for 10 minutes

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Burapha University

Samarbejdspartnere

Faculty of Allied Health Sciences

Efterforskere

  • Ledende efterforsker: Piyapong Prasertsri, Ph.D., Faculty of Allied Health Sciences, Burapha University

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. maj 2026

Primær færdiggørelse (Anslået)

31. december 2026

Studieafslutning (Anslået)

31. januar 2027

Datoer for studieregistrering

Først indsendt

8. maj 2026

Først indsendt, der opfyldte QC-kriterier

8. maj 2026

Først opslået (Faktiske)

14. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

15. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

13. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • IRB1-033/2569

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

There is no plan to make individual participant data available to other researchers.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Ingen

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Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med MMC powder capsule

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