A total of 27 healthy individuals were included in the study. The intervention consisted of an intake of 33 g of walnuts per day for three days. Antioxidants and other bioactive compounds were quantified. Also, urine and fecal samples were collected. Urolithins were identified in urine samples after the 3-day nut intervention.
The study results showed that walnut consumption for three days may be enough to modulate gut microbial composition and to increase the production of short-chain fatty acids.
García-Mantrana, I., Calatayud, M., Romo-Vaquero, M., Espín, J. C., Selma, M. V., & Collado, M. C. (2019). Urolithin Metabotypes Can Determine the Modulation of Gut Microbiota in Healthy Individuals by Tracking Walnuts Consumption over Three Days. Nutrients, 11(10), 2483.
The study results showed that walnut consumption for three days may be enough to modulate gut microbial composition and to increase the production of short-chain fatty acids.
García-Mantrana, I., Calatayud, M., Romo-Vaquero, M., Espín, J. C., Selma, M. V., & Collado, M. C. (2019). Urolithin Metabotypes Can Determine the Modulation of Gut Microbiota in Healthy Individuals by Tracking Walnuts Consumption over Three Days. Nutrients, 11(10), 2483.