Alcohol and leaky gut is a common correlation in avid drinkers. Ingestion of alcohol, even in nonintoxicated individuals, can lead to a leaky gut.
The inside of the small intestine is called the lumen, and its job is to absorb nutrients from the inside of the gut and have them enter the bloodstream. The lumen is made up of a barrier of cells, only one cell deep, and it’s important for these cells to remain tightly packed to only led in nutrients and nothing else. During alcohol consumption, the junctions or spaces between these cells in the lumen widen, allowing toxins and undigested food particles to pass through into the bloodstream which is not good. This increases the permeability of the lumen, which is how it gets the name leaky gut because there isn’t much regulation on what gets passed in our bloodstream, creating a ‘leak’. Many different negative outcomes can result from alcohol and leaky gut.