Sodium is essential for humans. It is not made in your body, and must be consumed. Sodium helps maintain the electrolyte balance in your body with potassium. Sodium also maintains your blood volume, blood pressure and allows absorption of nutrients in the small intestine, according to the Linus Pauling Institute. The adequate intake for most people is 1,500 milligrams of sodium per day.
Sodium and Energy
Sodium is a micronutrient, more specifically a mineral and is not designed to provide energy to your body. Macronutrients such as protein, fat and carbohydrates, provide energy for your body, which is why you need them in greater amounts. Minerals are still important for your body for metabolism and growth and are needed in smaller quantities.