My father-in-law was diagnosed with leukemia five years ago when he and my mother-in-law got bloodwork done to get their passports. He had not been to a doctor since they imigrated from holland in 1960. He used to have a rabbit ranch that he worked by himself in southern california. Since he perspired a lot while working he always took salt tablets and liberally loaded his food with salt (he believes that if he can taste salt in his sweat then it is "leaking out" of his system and must be replaced). He has continued to do this in retirement (he is now 80 years old). I have been doing some research and recently found out that there is some connection with erythropoietin and leukemia. My question(s) is(are): could he have given this to himself by over-consuming salt, and would lowering his salt intake lessen the severity if his leukemia?