If you’re trying to cut down on your consumption of salt, clearing the salt shaker off your kitchen table might not be the most effective approach. According to a study published in the journal Circulation, only about 10% of the salt consumed by American adults comes from home cooking, including 5% added to food at the table.
Food diaries kept by a sampling of 450 adults found that 71% of salt intake came from restaurant meals and processed foods like bread, crackers and soups. Salt naturally occurring in foods accounted for 14% of dietary sodium, and salt from tap water and supplements amounted to less than 1%. On average, subjects consumed about 3,500 mg of sodium per day, well over the recommended 2,300 mg per day limit.