Eighty million U.S. adults, or one in three, have hypertension (1). Another one in three have prehypertension, defined as blood pressure in the range of 120–139/80–89 mmHg. In addition to costing $48.6 billion annually, hypertension is a major risk factor for cardiovascular disease, congestive heart failure, chronic renal failure, and stroke (1). Even prehypertension increases the risk of death from CVD (2). Because of its severity, hypertension requires immediate treatment, but prescription drugs may not be the answer.
How low should you go? Aim to keep your sodium intake below 1,500 mg for healthy blood pressure, recommends the American Heart Association. That’s about half of what most Americans consume per day. Going easy on the saltshaker can help, but you’ll make a bigger impact by watching the sodium count in packaged or processed foods, Obarzanek says. (Pay extra attention to bread and rolls, pizza, soup, cold cuts, poultry, and sandwiches, which tend to pack the most salt.) Then try these other simple ways to slash your salt intake.
Even if you don’t keep a salt shaker on the table, you may have too much sodium in your diet. Processed foods -- especially canned soups, salad dressings, snack mixes, and fast food -- are a large contributor of sodium to your diet. Read food labels and choose low-sodium options when possible. Aim to consume less than 2,300 milligrams per day, and less than 1,500 milligrams if you’ve already been diagnosed with hypertension.
Diabetics often have lower recommendations for blood pressure, the maximum normal value being seen as 130/80-85. However, it’s questionable whether it’s a good idea to medicate your blood pressure levels down to those values. Diabetics can probably stick to approximately the same upper limit as people with heart disease: 140/90 (according to new studies and expert comments, as well as the latest recommendations from the American Diabetes Association, ADA).