Gut flora is important. It affects hormones and all kinds bodily functioning. Fats love sweets and so does yeast. If you compare a fats gut flora to a skinny person's, they are likely to be very different. You can change your gut biome simoly by eating healthy food though.And fasting for a couple days is a good way to encourage a reset. There are more than just adipose tissue implocations with gut bipme. In facf, a lot of behavior disorders can be associated with gut flora.