While down at Petes Coffee this morning chilling a small group of us were chatting about hobbies. I chatted about the saltwater hobby and BAR. Another person who runs numerous 100 mile events locally & abroad chimed in that they only drink natural ocean sea water during their runs! Not any sea water but deep sea water which is sterilized & filtered and tested for chemical makeup. They dilute it 3 to 1 but the 135 mile Death Valley marathon 1 to 1 or stronger.. They get better results less cramping with nsw vs man made products.. Maybe similar to isotonic IV fluids administered in hospitals…For curiosity here’s what they drink!