Id be careful about taking this stuff to excess. I have read that it can encourage the production of gastrin , the hormone responsible for the production of acid in the stomach . This made me ill for two weeks with severe acid reflux. I had severe chest pains which stopped me from eating and sleeping for a week. I got so bad with it that PE was the last thing on my mind. I would not advise that any one takes more than a gram a day. My problem started after I had taken 4 grams a day for just 2 days and there was absolutely nothing I could do to but wait for the acid to subside. Be warned , this stuff made me feel absolutely terrible so there is an upper limit you can safely take.