The best swimmers among female Ironman triathletes complete the swimming portion of the event in 50 minutes to an hour. At the World Championship, the cutoff time for all competitors is two hours, 20 minutes. Any participant who fails to complete the 2.2-mile swim within that time is eliminated from the competition.
Vitamin K: One of two naturally occurring fat-soluble vitamins (vitamin K1 and vitamin K2) needed for the clotting of blood because of an essential role in the production of prothrombin (a clotting factor).
Vitamin K was discovered in the 1920's as a fat-soluble factor important in blood coagulation (K for koagulation). Vitamin K1 is found in plants and vitamin K2 is found in animals and bacteria, including beneficial probiotic bacteria, aka good bacteria, from the GI tract.The body can store about a one-month supply of the vitamin.itamin K1 is found in plants and vitamin K2 is found in animals and bacteria, including beneficial probiotic bacteria, aka good bacteria, from the GI tract. The body can store about a one-month supply of the vitamin.