Sodium can be found in high amounts in the surface of bone crystals but is also present in the body's extracellular fluid (plasma) and nerve and muscle tissue. The major source of sodium is through sodium chloride, or salt. Most of the salt is supplied through processed foods (canned meats, soups, condiments, snacks, pickled foods). However, sodium is naturally present in milk, meats, eggs, water, and most vegetables. Sodium is helpful to the body, although most people try to lower their intake. Sodium is involved in regulating both blood pressure and blood volume. Sodium also plays a role in the movement of body fluids between cells and tissues, while maintaining proper body fluid levels. It can also influence the normal functioning of muscles and nerves. Sodium must be obtained through the diet as the body cannot store it. Although many believe that high sodium intake in unhealthy, it is important to maintain normal levels to ensure proper body functioning.
At the time, there are no interactions associated with sodium and other drugs. However, sodium may decrease the absorption of other supplements such as beta-carotene, lutein, lycopene, calcium, zinc, manganese, chromium, and magnesium.
Sodium may cause mild gastrointestinal side effects such as flatulence.