How Much Salt Is Too Much?

Excess salt consumption has become a major health problem worldwide. Studies show that excessive salt consumption may increase the risk of serious conditions such as stroke and heart disease. Reducing salt consumption is therefore encouraged. But when it comes to salt consumption, the question “How much salt is too much?” arises.

As one of the ways to eat healthily, the American Dietary Guidelines recommend that adults consume less than 2300 milligrams (2.3 grams) of sodium daily, that is, approximately 1 teaspoon.

A report published earlier this year showed that approximately 90% of adults and children in America consume more sodium than recommended. Daily sodium consumption in adults was found to exceed 3400 mg. Studies have also shown that sodium in processed foods accounts for approximately 75% of salt consumption. Guidelines on salt consumption have been developed to prevent conditions related to excessive salt consumption.

These guidelines aim to reduce the risk of salt-related diseases by reducing salt consumption among consumers and keeping it at the recommended daily level of 2300 mg.

However, some experts argue that this recommended amount is too low or that this target is unrealistic, stating that such low salt consumption does more harm to health than good.

How Much Sodium Do Foods Contain?

• 1 slice of bread contains approximately 80-230 milligrams of sodium 
• Some breakfast cereals may contain up to 300 milligrams of sodium before milk is added
• A slice of frozen pizza may contain up to 370-730 milligrams of sodium

Salt Consumption: Benefits and Risks

Approximately 90% of sodium consumption comes from sodium chloride, found in table salt and frequently added to processed foods as a flavor enhancer and preservative.

As is well known, the body needs some salt. This is important for nerve and muscle functioning and helps regulate bodily fluids.

However, countless studies have stated that excessive salt consumption may increase the risk of serious health problems. It is particularly indisputable that high blood pressure, stroke and heart disease are associated with excessive salt consumption.

A study published earlier this year suggested that excessive salt consumption may cause liver damage, while another stated that it could increase the risk of multiple sclerosis (MS).

The idea that consuming too much salt may harm the body is plausible. Excess salt retains water in the body. This puts additional strain on the heart and blood vessels, raises blood pressure and increases cardiovascular disease risk.

However, the point (quantity) at which salt stops helping the body and begins impairing health remains a subject of debate.

Are Currently Recommended Salt Intake Amounts Too Low?

While current American guidelines recommend a maximum daily intake of 2300 mg of sodium, a study published last month suggested that even daily sodium consumption of 3000 mg is too low and may put health at risk. The study observed unexpectedly higher risks of certain serious conditions in adults consuming less than 3000 mg of salt daily compared with those consuming average amounts of sodium.

Furthermore, the study questioned daily salt intake in people with high blood pressure and high risks of heart disease and stroke; they were found to consume an average of 6000 mg of salt daily.

While experts emphasized the importance of reducing excess salt consumption in people with high blood pressure in this study, the view was expressed that the amount of salt reduced should not be too great.

This is not the first study to question current salt consumption guidelines. A study in 2014 emphasized that consuming less than 2500 mg of salt daily did not reduce the risk of diseases associated with high salt consumption as expected.

It is a scientifically indisputable fact that reducing salt consumption lowers blood pressure

Despite confusing answers in recent years to the question “What should ideal salt intake be?”, the American Food and Drug Administration (FDA) concluded that consuming less than 2300 mg of sodium daily is an “effective scientific approach” that can protect against health risks related to high salt consumption. Experts also believe that this recommended sodium intake lowers blood pressure and ultimately prevents hundreds of thousands of untimely illnesses and premature deaths.

Some experts suggest that reducing salt consumption will not provide much health benefit. Experts holding the opposite view describe this as a “mistaken approach that could have very bad consequences,” noting that results of many studies claiming little benefit from low salt consumption were obtained from just a few urine samples, meaning they could be misleading.

More Research on Salt Consumption Is Needed

While many health experts support government strategies to reduce salt consumption, others state that longer-term studies on how low salt levels affect health are needed before a recommendation is made.

In line with this view, it is stated that studies should be conducted showing health risks in people consuming low amounts of sodium alongside risks in those consuming too much.

Based on existing evidence, paying attention to salt consumption recommendations already in dietary guidelines is the most appropriate way to reduce health risk associated with excessive salt consumption.