4. Eat fewer: Foods with 700 mg of sodium or more per serving
Diets high in salt lead to increased blood volume, which ratchets up the pressure on blood vessel walls. Seventy-five percent of the sodium in the average American diet comes from salt added to processed foods, according to the American Heart Association.
Slash sodium: Skip foods that list salt, sodium phosphate, or monosodium glutamate high in the ingredients. (And opt for fresh rather than boxed, pre-prepared meals.)