NCT05443828

Plasma SCFAs After Fermentable Cereal Fibres - A Postprandial Study

Short-chain Fatty Acids in Plasma After Intake of Fermentable Cereal Fibres- An Extended Postprandial Study

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 22 (actual)
• Sponsor: Federico II University · Academic / Other
• Sex: All
• Age: 30 Years – 75 Years
• Healthy volunteers: Accepted

Summary

Circulating SCFAs reflect the net effect of what is produced in the large intestine from dietary fibre fermentation, bioavailability after considerable absorption by the enterocytes and in the liver and the elimination. It is yet unclear to what extent SCFA levels in systemic circulation is of importance for metabolic disease risk and diabetes aetiology. Recent high-impact studies strongly suggest beneficial metabolic effects of butyrate and adverse effects from propionate However, no study has yet investigated to what extent butyrate or propionate producing diets may influence metabolic risk factors for T2D across individuals with different butyrate or propionate producing capacity. The overall aim is to investigate individual's ability to generate high concentrations of butyrate and propionate in plasma after acute intake of different fibre rich foods in an extended postprandial setting. The aim is further to optimize time points for data collection to allow robust assessment of plasma-time concentration profiles of butyrate and propionate to establish a screening approach to identify individuals with high/low butyrate/propionate plasma concentrations. This will be used in later precision nutrition studies where diet will be tailored to high/low SCFA-metabotypes.

Conditions

• Overweight and Obesity

Interventions

Type	Name	Description
OTHER	Breakfast Control Meal	The participants consumed extruded puff with added vitacel (cellulose) as part of the breakfast meal (400 kcal, 12 g fiber) followed by consumption of standardised meal at lunch and dinner . The lunch and dinner did noft contain any intervention products. Blood samples were collected at 14 timepoints drawn (first sample 15 minutes before breakfast, last sample 24 hours after breakfast), during 6 hours after the test breakfast meal and during other 2 hours after standardised lunch.
OTHER	Breakfast Test Meal	The participants consumed bread with added arabynoxylans (AX) as part of the breakfast meal (400 kcal, 12 g fiber) followed by consumption of standardised meal at lunch and dinner . The lunch and dinner did noft contain any intervention products. Blood samples were collected at 14 timepoints drawn (first sample 15 minutes before breakfast, last sample 24 hours after breakfast), during 6 hours after the test breakfast meal and during other 2 hours after standardised lunch.
OTHER	Breakfast Test Meal	The participants consumed extruded puff with added wheat bran as part of the breakfast meal (400 kcal, 12 g fiber) followed by consumption of standardised meal at lunch and dinner . The lunch and dinner did noft contain any intervention products. Blood samples were collected at 14 timepoints drawn (first sample 15 minutes before breakfast, last sample 24 hours after breakfast), during 6 hours after the test breakfast meal and during other 2 hours after standardised lunch.

Timeline

• Start date: 2021-11-09
• Primary completion: 2022-05-24
• Completion: 2022-05-24
• First posted: 2022-07-05
• Last updated: 2022-07-05

Locations

1 site across 1 country: Italy