Electrolyte Benefits: What Electrolytes Do and How They Support Hydration
Key Takeaways
- Electrolytes are minerals with an electric charge that help balance water in the body, support muscle and nerve function, and help keep heart rate and rhythm steady.i
- Common electrolytes include sodium, potassium, calcium, magnesium, chloride, phosphate and bicarbonate.i
- People can lose fluids and electrolytes through heavy sweating, hot weather, intense exercise, vomiting or diarrhea.ii
- For many people, water plus a balanced diet can help maintain overall hydration and electrolyte balance, while electrolyte-containing beverages may be useful during some extended-exercise or sweat-heavy situations.iii
- Emergen-C products may contain electrolytes depending on the formula; check the Supplement Facts and product page for the current product you plan to use.iv
Electrolytes help your body manage fluid balance, support muscle and nerve function, and keep important processes working properly.i They are especially relevant when you lose fluids through sweat, hot weather, intense activity or illness, which is why many people search for electrolyte benefits in the context of hydration.ii
What Are Electrolytes?
Electrolytes are minerals that carry an electric charge when dissolved in water or body fluids, including blood.i They help balance the amount of water in the body, support acid/base balance, move nutrients into cells, move waste out of cells, and support muscle, nerve, heart, blood pressure, bone and tooth health.i Common electrolytes include sodium, potassium, calcium, magnesium, chloride, phosphate and bicarbonate.i
Here are several key electrolytes and the roles they help support:i
Electrolyte |
Role in the Body |
Common Dietary Sources |
Sodium |
Helps control the amount of fluid in the body and supports nerve and muscle function.i |
Table salt and many packaged or prepared foods. |
Potassium |
Helps cells, muscles and the heart work properly.i |
Fruits, vegetables, beans and dairy foods. |
Calcium |
Helps make and keep bones and teeth strong; calcium also helps with muscle movement, nerve signaling and blood circulation.vi |
Milk, yogurt, fortified foods and leafy greens. |
Magnesium |
Helps muscles, nerves and the heart work properly.i |
Nuts, seeds, whole grains, beans and leafy greens. |
Phosphate |
Works with calcium to build strong bones and teeth.i |
Protein foods, dairy foods, nuts and beans. |
What Do Electrolytes Do? Key Benefits and Body Functions
Electrolytes support everyday functions that depend on the right balance of minerals and fluids.i Their benefits are not about an instant boost; they help your body maintain basic processes such as fluid balance, muscle movement, nerve signaling and heart rhythm.i
Key electrolyte functions include:i
- Helping balance the amount of water in the body
- Helping balance the body’s acid/base, or pH level
- Moving nutrients into cells and waste out of cells
- Supporting muscle and nerve function
- Helping keep heart rate, rhythm and blood pressure steady
When Can You Lose Electrolytes?
You can lose electrolytes when your body loses fluids, especially through heavy sweating, vomiting, diarrhea, fever or not drinking enough fluids.ii Electrolyte imbalance can also happen when the amount of water in the body changes too much in either direction.i
Sweat is a common reason electrolyte needs come up around exercise and hot weather. Because electrolytes help regulate fluid balance, muscle function and other everyday body processes, replacing fluids and electrolytes may be relevant after heavy sweating or other fluid losses.iii
This does not mean everyone needs an electrolyte supplement every day. For many everyday situations, water and regular meals can help support hydration and replace salt lost through sweat, but longer, hotter or more sweat-heavy activity may make electrolyte-containing foods or drinks more relevant.iv
How Do Electrolytes Support Hydration?
Electrolytes support hydration by helping balance the amount of water in the body.i Fluids are still essential: dehydration happens when the body loses more fluid than it takes in and does not have enough fluid to work properly.ii
- Drink fluids regularly.
Fluids are essential for hydration because dehydration happens when the body loses more fluid than it takes in.ii - Pair fluids with electrolyte-containing foods.
A balanced diet can help provide electrolyte minerals such as sodium, potassium, calcium, magnesium and phosphate.iv - Know when to seek medical guidance.
Dehydration can range from mild to severe, and severe dehydration can be life-threatening; seek medical help right away for serious symptoms such as confusion, fainting, lack of urination, rapid heartbeat, rapid breathing or shock.ii
How to Replenish Electrolytes
You can get electrolytes from the foods you eat and the fluids you drink.i A balanced approach often starts with water, regular meals, and foods that naturally provide minerals such as potassium, calcium, magnesium and phosphate.v
- Choose electrolyte-containing foods.
Fruits, vegetables, beans, dairy foods, nuts, seeds and whole grains can contribute minerals that act as electrolytes.v - Replenish after sweat-heavy activity.
After heavy sweating or other fluid losses, replacing fluids and electrolyte minerals may help support normal fluid balance and body function.iii - Use electrolyte products thoughtfully.
Electrolyte-containing drinks or powders may be useful in certain exercise, heat or sweat-heavy situations, but they should not replace medical care for dehydration or other health concerns.iv
Does Emergen-C Have Electrolytes?
Some Emergen-C products contain electrolytes, but the type and amount can vary by formula. Check the current Supplement Facts and product information for the specific Emergen-C product you plan to use before choosing it for hydration or electrolyte support.iv
If you are looking specifically for electrolyte-focused support, review Emergen-C product options and labels carefully rather than assuming every Emergen-C powder, gummy or chewable has the same electrolyte profile. You can also explore Emergen-C products, immune health 101, and the Emergen-C FAQs for current product and wellness information.
Electrolytes play an important role in fluid balance, muscle and nerve function, and everyday hydration, but electrolyte needs vary by person and situation.i If you are concerned about dehydration, electrolyte levels, a medical condition, medications, or symptoms that do not improve, speak with a healthcare professional for personalized guidance.ii
SOURCES
i. Electrolyte Panel. MedlinePlus. https://medlineplus.gov/lab-tests/electrolyte-panel/ Accessed 11/20/2020.
ii. Fluid and Electrolyte Balance. Medline Plus. https://medlineplus.gov/fluidandelectrolytebalance.html. Accessed
iii. Electrolytes: what are they? Roswell Park Cancer Center. https://www.roswellpark.org/cancertalk/201808/electrolytes-what-are-they-what-happens-if-you-dont-have-enough/ Accessed 11/20/2020.
iv. Electrolyte Drinks: Beneficial or Not? Cleveland Clinic. https://health.clevelandclinic.org/electrolyte-drinks-beneficial-or-not/ Accessed 11/20/2020.
v. Essential Electrolytes. Rush University Medical Center. https://www.rush.edu/news/essential-electrolytes/ Accessed 11/20/2020.
vi. Calcium and Calcium Supplements: Achieving the Right Balance. Mayo Clinic. https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/calcium-supplements/art-20047097#:~:text=The%20benefits%20of%20calcium,diabetes%20and%20high%20blood%20pressure. Accessed 5/2/2021