Define some major source of sodium and chloride?

The major source of sodium and chloride is common salt added to our food in the form of sodium chloride. Naturally occurring sources of sodium are milk, meats, eggs and most vegetables. In addition, food additives used in processed foods such as baking powder, preservatives etc. contribute towards dietary sodium intake. Therefore, it is important to take note of all these while calculating the sodium content of diets, On the other hand, potassium is abundant in unprocessed foods, fruits, many vegetables and fresh meats. Also many salt substitutes contain potassium instead of sodium. Absorption of these electrolytes is governed by several factors including body fluids, hormones and presence of other nutrients, to name a few.