Impact and Application of Vegan Diet on Gut Microbiota

Abstract

Vegan diet has been more popular these years. At the same time, a serious of researches showed that the dietary pattern can affect the gut microbiota. This review mainly shows the impact of vegan diet on human gut microbiota, along with the medical apply of these impact. It illustrates that vegans have more gut microbiota comparing to omnivores. In contrast, the long-term (over 3 years) vegans have higher abundance of Clostridiales and genera Faecalibacterium, Bacteroides, Clostridium and Prevotella and the short-term (3 days to 2 weeks) vegans have more various gut environment. For the imply of vegan diet’s effect on gut microbiota, it was found contributing on treating obesity,steatohepatitis, undernutrition and cardiovascular diseases. The limitation of the review is that the time, especially the long-term and short-term definition is various, causing the errors in the research analysis. Future research could combine the gut microbiota behavior with the vegan diet to create treatments or use it as a supporting diet.