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Effects of Calamansi on Blood Glucose and Insulin Levels

13. mai 2026 oppdatert av: 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.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

54

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

  • Thailand
    • Burapha University
      • Mueang, Burapha University, Thailand, 20131
        • Rekruttering
        • Piyapong Prasertsri
        • Ta kontakt med:
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen

Tar imot friske 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

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Forebygging
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Trippel

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / 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.
Annen: MMC powder capsule
Each capsule contains MMC powder for 500 mg
Eksperimentell: 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.
Kosttilskudd: Calamansi powder capsule
Each capsule contains calamansi powder for 500 mg

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
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
Tiltaksbeskrivelse
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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Burapha University

Samarbeidspartnere

Faculty of Allied Health Sciences

Etterforskere

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

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. mai 2026

Primær fullføring (Antatt)

31. desember 2026

Studiet fullført (Antatt)

31. januar 2027

Datoer for studieregistrering

Først innsendt

8. mai 2026

Først innsendt som oppfylte QC-kriteriene

8. mai 2026

Først lagt ut (Faktiske)

14. mai 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

15. mai 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

13. mai 2026

Sist bekreftet

1. mai 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • IRB1-033/2569

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

IPD-planbeskrivelse

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

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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