rephrase that one for me, carnitine is the base for all those that you are currently using
:Look into MST---- I runn 5k-to 10K 4 times a week I can tell you for sure that these two products are the best on the market for endurance... Their is no other company that comes close on how great these product work for endurance....
Diet is always the key to unlocking the door of success
I use GPLC for the added strength, endurance, and so on, for lifting wieghts. I think the main thing for a runner is carbs. GPLC for lifting is better imo.