Allium Extracts on the Intestinal Microbiota in Healthy Resident Volunteers.

To evaluate the effect of daily consumption of a combination of garlic and onion extracts on the intestinal microbiota and the production of short chain fatty acids in elderly healthy volunteers living in a residence. Likewise, any incident related to health that occurred during that period will be noted.

This study is a continuation of another (C002, registration number NCT04647071). The volunteers from study C002 were invited to participate in this new study and, by the end of C002, all gave 2 stool samples. After 4 weeks of washout, the control group volunteers in C002 will begin consuming 1 capsule per day of garlic and onion extract after lunch. The intervention group volunteers in C002 will not consume anything. During 36 weeks any incident related to the health of the volunteers will be noted. Likewise, during this time, the volunteers will maintain their lifestyle and eating habits. At 36 weeks, 2 stool samples will be taken from all volunteers.