Electrolytes are substances that are either negatively or positively charged when dissolved in water. Almost every single cell in your body has electrolytes, and that’s a good thing! Though they’re small, electrolytes are mighty and facilitate a wide variety of bodily functions. Your body needs electrolyte balance to do the following:
- Regulate various chemical reactions in the body
- Keep body fluids balanced
- Contract the muscles
- Remove waste products
- Keep the heart and brain functioning properly
- Regulate nerve impulses
If the body’s electrolyte levels become imbalanced, bodily functions stop working optimally. That’s why it’s really important to keep an eye out for symptoms of electrolyte imbalance and make sure you replenish electrolytes after every workout or illness. A mild fluid imbalance may not be a big cause for worry, but moderate to severe electrolyte imbalance is very serious and can lead to severe dehydration, kidney failure, and even death.
Electrolytes in the body have different tasks. The major electrolytes are sodium, potassium, and chloride. Phosphate, magnesium, calcium, and bicarbonates are also electrolytes. Let’s talk about the different electrolytes and what they do for the human body.
Sodium is one of the most important electrolytes. It helps regulate the absorption of nutrients across the cell membrane and is responsible for keeping extracellular fluid volumes in check. Sodium is the most plentiful electrolyte in the human body. Balanced sodium intake is essential, as too much or too little can cause confusion, mood changes, and seizures. In severe cases, extreme sodium losses could lead to coma.
Whenever an ion of sodium enters one of your cells, an ion of potassium leaves. The opposite is also true. By functioning in this way, potassium and sodium help to balance each other out so there isn’t too much of one or the other in each cell. Potassium is especially important to your heart function. Too much or too little potassium can lead to heart problems.
Athletes need more potassium than people who live inactive lifestyles. This is because active muscles require more potassium to contract and relax normally. Athletes’ cells also need more potassium to keep them energized and improve performance. Eating plenty of vegetables is a great way to boost potassium levels.
Chloride (a chlorine ion) is second in volume only to sodium. It helps the cells maintain balance in their external and internal fluid levels. Chloride is essential for maintaining pH balance. Too much chloride can contribute to kidney disease and other kidney problems. Insufficient chloride is associated with alkalosis, which happens when the body becomes too alkaline.
In addition to the major electrolytes mentioned above, there are several other electrolytes your body needs to function properly. They include:
- Magnesium
- Calcium
- Phosphate
- Bicarbonate
Your cells need magnesium to convert nutrients into useful energy. Magnesium is especially helpful for optimal brain and muscle function. Too much or too little magnesium can lead to decreased ability to breathe, heart arrhythmias, and muscle weakness.
Calcium has long been valued for its ability to build strong teeth and bones. But it’s also responsible for managing heart rhythm, muscle contraction, and transmitting nerve signals. Calcium levels need to be balanced or problems arise. Too much calcium can lead to headaches, constipation, joint pain, and frequent urination. Too little calcium can cause confusion, loss of muscle control, and behavior changes.
Phosphate helps the body metabolize nutrients. It’s also a key component of nucleotides (which are DNA building blocks). Phosphate is a phosphorous-based molecule that can cause unwanted symptoms when imbalanced (such as excessive itching, kidney damage, reduced heart function, and seizures).
Bicarbonate is created when the body recycles some of the carbon dioxide in your body. Bicarbonate helps to keep blood pH levels in the normal range. If the blood pH levels become imbalanced, it can be dangerous to your health.
Too much acidity in the blood can happen when there isn’t enough bicarbonate in the body. This condition is also known as metabolic acidosis. Acidic blood leads to nausea, fatigue, confusion, and faster breathing. Too little blood acidity (also known as alkalosis) can lead to muscle twitching, arrhythmias, and confusion.