Gut microbiome fluctuates throughout the day and across seasons, finds study

The balance of microbes in the human gut varies substantially from morning to night and even more by season—with profound fluctuations completely transforming the microbiome from summer to winter, according to a study to be presented at Digestive Disease Week (DDW) 2023.

source https://medicalxpress.com/news/2023-04-gut-microbiome-fluctuates-day-seasons.html