Walnuts also considered the nut ambrosia can have various health and mental benefits. According to a study conducted by the University of Illinois the way walnuts impact the gut microbiome - the collection of trillions of microbes or bacteria in the gastrointestinal tract - may be behind some of those health benefits. Diets rich in nuts such as walnuts have been shown to play a role in heart health and in reducing colorectal cancer. Dietary fiber acts as a food source for gut microbiota helping the bacteria to do their jobs - breaking down complex foods providing us nutrients or