What is the cure for leaky gut syndrome lgs?

You're free to try. "Leaky gut" is a pop diagnosis that may be real. You do need to know that the general medical community has been reluctant to accept it despite 20 years of promotion and a bona fide testing system (sucrose / mannitol absorption). If you are disappointed in the results of a treatment protocol, perhaps the diagnosis should be re-examined and another cause of your symptoms sought.
GAPS protocol. The gaps (gut and psychology syndrome) protocol has been very successful for many people. The gaps diet is based on the scd (the specific carbohydrate diet). You can find details at www.Gaps.Me.