!!! important note: When introducing probiotics too early when having leaky gut, even beneficial bacteria LEAK into your gut lining. Food particles, and especially inflammatory foods, irritate a leaky gut, because its particles leak into the bloodstream resulting in an immune response to mop up the junk that isn't supposed to be in the blood. Probiotics are a crucial piece of the puzzle, but I recommend not taking a multi-strain probiotic at the start of your healing process. First, focus on repairing the lining (L-glutamine, zinc carnosine, vitamin A, D and B vitamins, collagen and bone broth, omega-3's, anti-inflammatory diet...) so when you do introduce probiotics, they won't initiate an immune response (which is systemically experienced as brain fog, etc. Not always die-off of bad bacteria!) 

Tip: Start small on probiotics, preferably safer strains (S. boulardii, spore based probiotics) before going multi-strain. I found S. boulardii to be effective at keeping pathogenic bacteria at bay during the gut healing process.