Today I received an email from a rower who had read my book, Fast After 50. In it I comment on the high-fat diet as one alternative to eating for high performance. I also mentioned it in this week's blog on How to Recover (Follow Up). The reader had a couple of good questions. I've posted the email below along with his questions and my answers. This topic is a hot one right now for endurance athletes. His questions get at two of the key issues to be considered. Here's the email reply I sent to him.