Prevention and lifestyle
Sodium is mainly found in salt and salty foods. According to the National Research Institute for Food and Nutrition (Istituto Nazionale di Ricerca per gli Alimenti e la Nutrizione - INRAN):
According to estimates by the European Commission, the salt contained in industrial foods or consumed outside home reaches more than 75% and the salt added in domestic preparations is about 10%. 
Water: Are low sodium ones really useful?
There are low-sodium mineral waters on the market. However, in most mineral waters the sodium content is less than 0.05 grams per liter, which means that to reach 2 grams of sodium you would need to drink more than 40 liters per day! With two liters of water, an average of 0.02 to 0.1 grams of sodium is introduced every day, i.e. only 1 to 5% of the maximum daily recommended amount.
When the flavor deceives: That salty unsalted
Some foods contain moderate amounts of sodium, although they do not seem salty. This is the case for example of some types of breakfast cereals or cookies: this can happen because the contained sodium is hidden from our taste buds by the sugar. The advice is to get used to consult the label of the food we are going to eat.
© Istituto Superiore di Sanita (ISS)