To be a little more specific... CFers lose 10 times as much salt as "healthy" people (this is, of course, not an exact number). The main reason you can lose more in the summer, is simply that you tend to sweat more in the summer. But all as I was growing up and ever since, I've had a huge craving for salt, and salt just about everything. So I've never run into a salt issue, really. I have always been able to make up for it.