I once had a doctor tell me I was the kind of person who could eat all the potato chips and pretzels I desired. Of course, I did not do that, but in a decade where everyone was storing the salt shaker in the back of the pantry, it was a wise piece for me to hear. I salt my food to taste... just about everything. It helps to avoid junk, even if salty and "ok." The best way I get the salt I need... sounds gross, but it's fast in the mornings: I pour sea salt into my hand, lick it off, drink some water, do it again, drink some water... about the third round, it finally tastes like salt. My energy for the day is much improved on the days I remember. (I am supposed to dissolve the full amount in a full glass of water and drink it all at once. Impossible. Yuck.)
To heapsreal's question about CFS and salt:
Salt is necessary for healthy adrenal function. In the case of challenged adrenals (mine came close to shutting down completely with CFS), a half-teaspoon of salt a day would be a very normal recommended dose. That is the amount my doctor told me to try (a later doctor with a better clue!), and it seems about right. Just so hard to get down all at once, and I STILL salt my food all day. It tastes bland if I do not. Occasionally, I stop doing it, sure my taste buds are just fried. Not so... energy plunges, and I quickly repent the following days. As my body heals, I find my system is more forgiving if I forget a day.
Ditto jeffrez' thought on table salt: BAN IT from your table. Good sea salt all the way.