[pochercoaster]

How about a thermos with thick soups or stew? And you can bring along some dipping bread in a sandwich bag. No need to refrigerate. Also some fruits keep fine without refrigeration. Bananas, apples, oranges...

I think there's some connection to excessive salt and weight retention (bloating/water retention, actually), but unless you're consuming a lot of it, there's no reason to worry about how much salt is in your diet if it doesn't cause you any problems. </unprofessional opinion> You know your body better than anyone else does (except for a doctor sometimes).

So long as we're talking about salt, though, it's worth noting that most cold cuts have a lot of salt in them. Subway sandwiches can easily be excessively salty. And if you subscribe to the excess calories = excess weight method of weight loss you'd probably want to stay away from foot longs.

Edit: Also I used to snack on almonds a lot at work and found them surprisingly filling.