As a health and nutrition expert, I can tell you that sodium is an essential electrolyte that plays a crucial role in various bodily functions, including nerve signal transmission, muscle contraction, and maintaining the balance of fluids. If you don't have enough sodium in your diet, a condition known as hyponatremia can occur. This is characterized by low levels of sodium in the blood, which can lead to a range of symptoms and health issues. Mild cases might cause symptoms such as: 1. Fatigue and lethargy: Low sodium can make you feel tired and sluggish. 2. Nausea and vomiting: These can be signs that your body is trying to correct the imbalance. 3. Headaches: Due to the changes in brain cell volume as they swell or shrink in response to the sodium levels. 4. Muscle cramps and weakness: Sodium helps in muscle contraction, so a deficiency can lead to muscle issues. In more severe cases, hyponatremia can lead to: 1. Seizures: Caused by the rapid shifts in the balance of electrolytes in the brain. 2. Confusion and disorientation: As the brain cells swell due to water moving into them to compensate for the low sodium levels. 3. Coma: In extreme cases, low sodium levels can lead to a loss of consciousness. 4. Death: If left untreated, severe hyponatremia can be fatal. It's important to note that while sodium is essential, most people consume more than the recommended amount, and excessive sodium intake can lead to high blood pressure and other health problems. It's all about finding the right balance. read more >>

Sodium Deficiency. You lose a little sodium every day when you sweat, but your diet provides enough sodium to replace the amount lost. ... These dangerously low sodium levels cause muscle cramps, nausea, vomiting, dizziness, and if not treated, can lead to shock and coma.read more >>