http://www.newsweek.com/weight-loss-microbiome-brain-activity-dieting-1849341

A popular diet regimen can cause permanent changes to both your brain and the bacteria in your gut, research has found.

This weight loss method, known as "intermittent energy restriction" (IER), involves switching between days of eating normally and days of fasting. Researchers found that this diet can affect the interplay between brain activity and the gut microbiome—the collection of good bacteria living in your gut.