Modulation of Secondary Bile Acids Through the Intestinal Microbiota After Consumption of a High-protein Diet.

Healthy Clinical Trial

Official title: Modulation of Secondary Bile Acids Through the Intestinal Microbiota After Consumption of a High-protein Diet.

Status Completed

Clinical Trial Summary

This study will investigate whether changes in the gut microbiota generated after the consumption of a high protein diet in healthy subjects, modify the production of secondary bile acids. In addition, it will be seen whether a high protein intake modifies postprandial glucose response and its relationship with gut microbiota composition.

Clinical Trial Description

The gut microbiota is a set of microorganisms that inhabit the human digestive tract and are fundamental for the health of the host. Among the functions of the gut microbiota is the production of metabolites, such as the production of secondary bile acids from primary bile acids. On the other hand, evidence has shown that the amount of protein intake can modify the composition of the gut microbiota and in turn it increase the concentration of secondary biles acids in animal models. In addition, the consumption of a high-protein diet has been related to a decrease in postprandial glucose concentrations. Therefore, the aim of this study is to evaluate changes in secondary bile acids concentration derived from gut microbiota after the consumption of a high-protein diet in healthy subjects. Subjects with a BMI between 18.5 and 24.9 kg/m2 will be selected and will be continuously monitored with a continuous glucose monitor through 15 days. During the first 7 days participants will follow an isocaloric diet (50% carbohydrates, 30% fat and 20% protein), while during the last 7 days participants will receive an intervention with a supplement of protein (calcium caseinate) which will increase their protein intake to 30% of the total energy requirement. At the initial and final visit, blood samples will be taken for determination of biochemical parameters, amino acids and primary bile acids and a stool sample will be requested for sequencing gut microbiota and determined secondary bile acids. ;

Related Conditions & MeSH terms

• Healthy

• NCT number: NCT05906641
• Study type: Interventional
• Source: Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran
• Status: Completed
• Phase: N/A
• Start date: August 1, 2023
• Completion date: December 30, 2023