If you eat 1 teaspoon of table salt you take in about 2,300 milligrams of sodium. How much water that makes the body retain depends on the person.
Sodium is important. It regulates your body's volume (or water level) by osmosis. When salt enters a vessel or goes through a membrane, water follows.
Your kidneys help get rid of extra salt or water in your urine. The heart is important in this process as well. It provides circulation to the kidneys so they can function properly.
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