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Effects of Concord Grape Juice Alone on Glycemia, Appetite and Cognitive Function in Healthy Adults

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Purdue University

Status

Completed

Conditions

Appetitive Behavior
Glycemic Response

Treatments

Other: Concord Grape Juice
Other: Low flavoniod low essence beverage
Other: Low flavonoid beverage

Study type

Interventional

Funder types

Other

Identifiers

NCT03409484
055-048

Details and patient eligibility

About

Assess the impact of 100% grape juice on postprandial glycemic response and subsequent appetite, food intake and cognitive function.

Full description

Investigators earlier clinical work and published literature suggest that the phenolic content and strong flavor intensity of 100% Concord grape juice hold potential beneficial effects on appetite and glycemia. Investigators aim to better understand the use of 100% grape juice modifies appetite and glycemia acutely and over the day using a 24 hour glucose monitor.

Enrollment

40 patients

Sex

All

Ages

25 to 60 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • BMI between 25.0-34.9 kg/m2
  • Willingness to eat all test foods
  • Low consumer of tea and coffee, willingness to refrain from both during the 48 hours prior to test days and on the test day.
  • Fasting blood glucose below 6.1mmol/l via capillary finger-stick blood sample using a SureStep glucometer (Lifescan, Milpitas, CA)

Exclusion criteria

  • Taking medications known to affect glycemia, lipid metabolism or appetite
  • Body weight fluctuation of >5kg in the past 3 months
  • Taking vitamin or other supplements
  • Smokers
  • Acute or Chronic disease

Trial design

Primary purpose

Basic Science

Allocation

Randomized

Interventional model

Crossover Assignment

Masking

Single Blind

40 participants in 3 patient groups

Concord Grape Juice
Active Comparator group
Description:
100% Concord Grape Juice
Treatment:
Other: Concord Grape Juice
Low flavonoid low essence beverage
Sham Comparator group
Description:
Low flavonoid low essence beverage
Treatment:
Other: Low flavoniod low essence beverage
Low flavonoid beverage
Sham Comparator group
Description:
Low flavonoid beverage
Treatment:
Other: Low flavonoid beverage

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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