Leaky gut is real. That is when toxins, bad bacteria, etc. get leaked into our system via the digestive tract and cause disruption giving us symptoms that we then have to deal with. I was diagnosed with SIBO, a fungus and a yeast, gluten intolerant as the cause of my digestive issues, fatigue, not sleeping well. My doctor prescribed a number of supplements and botanicals to help heal my digestive tract along with changes in my diet. And my symptoms are dramatically reduced.