1 Consume foods that are rich in potassium. 2  Potassium can help blunt the effects of sodium on blood pressure. 3  The recommended intake of potassium for adolescents and adults is 4,700 mg/day.ome people are more sensitive to the effects of salt than others. The guidelines also recommend that, in general, individuals with hypertension, blacks, and middle-aged and older adults should limit intake to 1,500 mg of sodium per day.