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NCT Number: NCT07017465

Determination of the Glycemic Index (GI) and Glycemic Load (GL) of Watermelon (Citrullus Lanatus) in Healthy Adults

This study aims to evaluate and compare the glycemic load (GL) and glycemic index (GI) of different types of watermelons commonly available in the market. Using glucose as the reference standard, the study will measure the blood glucose response following consumption of each watermelon type in healthy adult participants.

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Key information

Conditions

Glycemic Index Glycemic Load

Age range

18 year–30 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

About this study

his study aims to evaluate and compare the glycemic load (GL) and glycemic index (GI) of different types of watermelons commonly available in the market. Using glucose as the reference standard, the study will measure the blood glucose response following consumption of each watermelon type in healthy adult participants. The objective is to identify variations in glycemic impact among watermelon varieties to inform dietary recommendations for blood sugar management.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

•

  • Healthy adults (BMI 18.5-24.9kg/m2.
  • No history of diabetes or metabolic disorders.
  • Not taking any medication affecting glucose metabolism.

Exclusion criteria

  • GI Disorders. 2) Recent infections or illness affecting glucose tolerance. 3) Non willing participants.

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Treatment and study plan

Water melon (sugar baby)

Other

Participants will consume a portion of watermelon Type A containing 50 grams of available carbohydrate to evaluate its glycemic index and glycemic load.

watermelon (Charleston gray)

Other

Participants will consume a portion of watermelon Type B containing 50 grams of available carbohydrate to evaluate its glycemic index and glycemic load.

watermelon (Crimson sweet)

Other

Participants will consume a portion of watermelon Type C containing 50 grams of available carbohydrate to evaluate its glycemic index and glycemic load.

Primary outcomes

  1. Glycemic Index (GI) of Watermelon Varieties

    Time frame: 1 month

    Description: Incremental area under the blood glucose response curve (iAUC) over 120 minutes after consuming each watermelon type, expressed as a percentage of the iAUC after consuming the glucose reference.

Secondary outcomes

  1. Glycemic Load (GL) of Watermelon Varieties

    Time frame: 1 month

    Calculated using the formula:

    Glycemic Load = (GI × carbohydrate content per typical serving) ÷ 100

Study contacts

Contact information is provided by the study sponsor or research team.

Naseer Ahmed

CONTACT

[email protected]

03305485960

Sponsors and collaborators

Lead sponsor

Rehman Medical Institute - RMI

Other

Registry information

Official study title

Determination of the Glycemic Index (GI) and Glycemic Load (GL) of Watermelon (Citrullus Lanatus) in Healthy Adults (A Controlled Clinical Trial)

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Jun 12, 2025
Registry last updated
Jun 12, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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