Spend 60-70% of your time cycling (i.e. for every 10 hours training cycle 7 hours run 2 hours and swim 1 hour) This is only a very basic guide line for injury prevention and you will get some cross over in fitness, the better you are on a bike your ironman marathon will be easier to complete.
People with liver disease and high alcohol intake may be at risk for liver toxicity from vitamin A supplementation. Vitamin A toxicity may lead to intrahepatic cholestasis, where bile cannot flow from the liver into the intestines. Vitamin A may cause low blood pressure. Caution is advised in people with low blood pressure or in those taking drugs or herbs and supplements that lower blood pressure.
For kidney disease, 3 grams of vitamin C was given by mouth before the kidney-toxic procedure, then 2 grams after the procedure in the evening and again the following morning; 100-200 milligrams of vitamin C has been taken by mouth daily.or liver disease, 120-3,000 of milligrams vitamin C has been taken by mouth daily for one day to six months; effectiveness on liver disease was lacking. For life extension, 60-2,000 milligrams of vitamin C has been taken by mouth daily for one month to 9.5 years.