Staying hydrated is essential for maintaining good health, but plain filtered water just isn't enough to keep you functioning optimally. That's where electrolytes come in.

Electrolytes are minerals that conduct electrical charges in the body and help to regulate fluid balance, muscle contractions, and nerve function. When you sweat or lose fluids through illness or exercise, you also lose electrolytes. So, it's important to replenish them to keep your body functioning properly.

But which electrolytes are the best to add to your water, and why?

1. Sodium

Sodium is one of the most important electrolytes to replace during exercise, especially if you're a heavy sweater. It helps to maintain fluid balance and blood pressure, and can also stimulate thirst, which encourages you to drink more water. According to a study published in the International Journal of Sports Nutrition and Exercise Metabolism, adding sodium to your water can improve hydration and exercise performance in athletes.

2. Potassium

Potassium is another key electrolyte that helps to regulate fluid balance and muscle function. It also plays a role in nerve transmission and can help to reduce muscle cramping. A study published in the Journal of the American College of Nutrition found that adding potassium to drinking water can improve hydration status and exercise performance in healthy individuals.

3. Magnesium

Magnesium is an essential mineral that is involved in over 300 enzymatic reactions in the body, including muscle and nerve function, protein synthesis, and energy metabolism. It also helps to regulate fluid balance and can reduce muscle cramping. A review of studies published in the Journal of Sports Science and Medicine found that magnesium supplementation can improve hydration status and exercise performance in athletes.

4. Calcium

Calcium is important for bone health, but it also plays a role in muscle and nerve function. It can help to reduce muscle cramping and may improve hydration status in some individuals. A study published in the European Journal of Applied Physiology found that calcium supplementation improved hydration status and exercise performance in female athletes.

5. Chloride

Chloride is an electrolyte that is involved in fluid balance and the production of stomach acid. It's often found in sports drinks and can help to replace electrolytes lost during exercise. However, too much chloride can cause stomach upset and diarrhea.

When choosing an electrolyte supplement or sports drink, it's important to check the label and make sure that it contains the electrolytes you need, in the right amounts. It's also important to check for added sugars and artificial flavors as those can counteract all the benefits of the electrolytes you're taking.

Adding electrolytes to your water can be an effective way to replenish the minerals lost through sweat or illness. Sodium, potassium, magnesium, calcium, and chloride are all important electrolytes that can help to regulate fluid balance, muscle function, and nerve transmission.