What is the main reason to limit sodium intake?

Limiting sodium intake is primarily recommended to prevent high blood pressure, a condition also known as hypertension. High sodium consumption can lead to an increase in blood volume, putting extra pressure on blood vessel walls. This sustained high pressure can contribute to various cardiovascular diseases, including heart attack and stroke, as well as kidney damage over time.

The relationship between sodium and hypertension is particularly critical for individuals who are salt-sensitive or who have a family history of high blood pressure. By reducing sodium intake, individuals can promote better heart health and lower the risk of developing hypertension, ultimately contributing to a healthier lifestyle overall.

While digestion, metabolism, and caloric intake are important aspects of nutrition, they are not the primary reasons for the emphasis on sodium reduction in dietary guidelines.