low sodium diets

Ya know I love David's Sunflower seeds since they keep my mouth busy (sometimes I get kinda fidgety) and are high in protein and fat but low in carbs. One thing I always thought was that they were really high in sodium and just now I'm looking at the nutrition facts for the different flavors of sunflower seeds and none of them really seem to have that much sodium in them. I was worried about the sodium thing because I'm under the impression that high sodium diets can increase risk of hypertension (wouldn't be a factor until down the road though).