Is a Low-Salt Diet Always Healthy?

How much salt is OK on a low-sodium diet?

The human body needs a certain amount of sodium to function properly. Sodium helps maintain fluid balance in the body and plays an important role in the muscle and nervous systems. However, too much sodium can make high blood pressure and related complications worse.

Increasing production of processed foods, rapid urbanization and changing lifestyles have contributed to changing dietary patterns. The availability of highly processed foods has increased dramatically in recent years. And now we have come to consume more energy-dense foods that contain saturated fat, trans fat, sugars and salt. Salt is the primary source of sodium, and high sodium intake is associated with high blood pressure and increased risk of heart disease and stroke.

According to the Dietary Guidelines for Americans, sodium intake of less than 2,300 milligrams (mg) per day is recommended for people aged 14 and older. This amount is roughly equivalent to a teaspoon of salt. The American Heart Association (AHA) agrees with this recommendation, but suggests aiming for the ideal limit of 1,500 mg of sodium per day.

A healthy low-sodium diet?

Recent studies have demonstrated that a low-salt diet can improve cardiovascular health. However, these studies had many limitations: sample size in some studies was small and included few people. In other surveyss they measured how much salt people said they consumed, but did not take into account how much salt they actually consumed.

According to an old study, avoiding foods high in salt may not be as beneficial for heart health as previously thought. Participants in a long-term heart health study did not appear to experience any benefit from a low-salt diet, said research team leader Lynn Moore, associate professor at Boston University School of Medicine. People who followed a low-sodium (salt) diet generally saw no benefit over the next 20 or 30 years, especially in terms of blood pressure or heart disease risk, as per the study.

What do recent studies say?

Recent studies have shown that a low-salt diet may not be as beneficial for heart health as previously thought. A study published in the Journal of the American Medical Association (JAMA) found that people who consumed less than 3,000 mg of sodium per day had a higher risk of heart disease and death compared to those who consumed between 3,000 and 6,000 mg per day. Another study published in The Lancet also found that low-salt diets may actually increase the risk of heart disease and death.

These studies suggest that a moderate intake of sodium, rather than a strict low-salt diet, may be more beneficial for heart health. It’s important to note that these studies do not mean that consuming high amounts of sodium is healthy, but rather that a moderate intake may be more beneficial than a very low intake.

Foods to include in a low sodium diet

To maintain a low-salt diet, it is important to consume foods that are naturally low in sodium. These include fresh fruits and vegetables, whole grains, lean meats, fish, and poultry. Legumes, nuts, and seeds are also excellent sources of nutrients and are naturally low in sodium. It is also important to choose low-sodium versions of processed foods, such as canned vegetables, soups, and salad dressings.

Foods to avoid on a low sodium diet

To maintain a low-salt diet, it is important to avoid foods that are high in sodium. These include processed foods such as frozen dinners, canned soups, salted snacks, and fast food. Condiments such as soy sauce, ketchup, and salad dressings can also be high in sodium. It is also important to check the labels of packaged foods and choose those with lower sodium content.


In conclusion, a low-salt diet is important for maintaining good heart health and controlling blood pressure. However, it is important to note that a completely salt-free diet may not be beneficial and may even be harmful. It is important to consume a balance of foods that are naturally low in sodium, while avoiding foods that are high in sodium. It is also important to pay attention to food labels and choose low-sodium versions of processed foods. Consult with a healthcare professional to determine the appropriate amount of sodium for your individual needs.

Overall, while it is important to be mindful of sodium intake, it is also important to keep in mind that a balanced diet with all the essential nutrients is important for overall health and well-being. It is important to work with a healthcare professional or a registered dietitian to determine the best approach for your individual needs.

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