Vichy Catalan contains 1100 mg of sodium per litre, or half your daily quota just from some water! Of course, if you're on a salt restricted diet, having a drink of this will not allow you any food at all, so you may as well spend $11 for it as you'll have neither money nor grams of sodium left for food.
What's the point of ordering a water that "has advantages for digestion" when you can't afford food to digest???