One of the many gut infections

 One of the many infections found in the gut is yeast infection called candida. 

This disease is called candidiasis

This yeast infection feeds on sugars especially the lactose and undigested food, food which you cannot digest and have allergic reaction to. 

This yeast covers your digestive tract and prevents food digestion and absorption.

Here are some pictures

This is an example of a yeast infection. This pic shows the infection on the tongue and this is the condition of your intestines too when you have a yeast infection in the gut. 

In a very very mild case of candidiasis, garlic helps but if it doesnt then you need supplments to clear your candida infection. 

here is a joke to amuse you

PS: I am not a doctor and I am just a normal being suffering from digestive issues and food allergies.