Based on my independent reading and research, leaky brain and leaky gut are medical fact.
Both my parents suffered from dementia, which likely stemmed from leaky gut, based on their high gluten and high sugar diet.
I used the Gundry product total restore, and Biocomplete, which I thought to be primarily probiotics (friendly bacteria to aid in digestion.
I am not saying that this probiotic is the best, or the only one to use. Only that it worked for me personally, and there is evidence that eating fermented food, sour dough bread, natural yogurt, etc. support good gut health.
I took the first product for 3 months, along with Biocomplete, with very good results.
My digestive system is working the best it ever has. My sleep is better. My brain is sharper. I have more energy. My weight has gradually gone down. My cravings for sugars are much less. My recent bloodwork came back the best is has ever been.
I also added more foods known to be great sources of prebiotic fiber. This is very important for supporting a healthy gut.
I cannot speak to any other claim or product.
My problem with these products and others like these is the cost.