NCT05119153

Effects of Coffee Roasting on Blood Sugar Levels in Healthy Humans

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 19 (actual)
• Sponsor: North Carolina State University · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Accepted

Summary

The present study determined the effects light, medium, and dark roasted, brewed coffees on blood glucose responses in normal (n = 19) subjects.

Detailed description

This is a single-blinded, randomized partial block design conducted over 6 weeks in two parts. In part 1 (3 weeks), participants were randomly assigned to consume four beverages: a placebo containing water and caramel color, light, medium, or dark roast coffee before, during, or after consumption of a beverage containing 50 g of glucose. In part 2 (3 weeks), participants were randomly assigned to consume four beverages: a placebo containing water and caramel color, light, medium, or dark roast coffee before, during, or after consumption of a standardized breakfast (corn flakes cereal + skim milk) containing 50 g of glucose. In each part, fasting and postprandial glucose profiles were determined.

Conditions

• Hyperglycemia

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Placebo Comparator	Placebo designed to mimic coffee color.
DIETARY_SUPPLEMENT	Light Roasted Coffee	12 oz light roast coffee
DIETARY_SUPPLEMENT	Medium Roasted Coffee	12 oz medium roast coffee
DIETARY_SUPPLEMENT	Dark Roasted Coffee	12 oz dark roast coffee

Timeline

• Start date: 2019-11-05
• Primary completion: 2020-12-20
• Completion: 2021-10-31
• First posted: 2021-11-12
• Last updated: 2021-11-12

Locations

1 site across 1 country: United States