If you think of electrolytes — if you think of them at all — it’s probably in the context of sports drinks or oral rehydration solutions like Pedialyte. But as of late, electrolyte beverages, powders, drops and tablets are cropping up everywhere from grocery-store endcaps to podcast ads, propelling a market that has nearly doubled in size since 2020 to hit about $40 billion in 2025.
On TikTok, where there are more than 460,000 posts with the hashtag #electrolytes, influencers and advocates swirl the colorful products into water and suggest they can enhance hydration and optimize energy, focus or performance.
It was one of these videos that first introduced Mariana Anchante, 32, to a popular electrolyte powder brand, though she didn’t immediately hop on the trend. “Some time later, I started getting headaches every afternoon, and ChatGPT recommended taking electrolytes,” she said via email. It reminded her of the product she’d heard about online — and she’s been adding the powder to her water daily ever since.
Electrolytes are essential minerals, such as potassium and sodium, that enable the signals that drive nerve and muscle function. They’ve traditionally been a sick-day and sports-drink staple because we lose them, especially sodium, when we sweat. Researchers at the University of Florida created Gatorade to help sweat-drenched football players replenish both fluids and electrolytes to avoid dehydration.
Today’s electrolyte powders and drinks took this hydrating benefit and ran with it, broadening their marketing to everyday consumers. And they’ve taken off because many people today are busy with work and family obligations “and they’re just tired, fatigued and not drinking enough fluid to begin with,” said Renee Korczak, an advanced practice registered dietitian nutritionist and a board-certified sports dietitian. The promise of a quick hydration fix is alluring.
However, most people who don’t exercise heavily probably don’t need extra electrolytes on a daily basis — and overloading on these minerals can be dangerous, especially for people with certain health conditions, according to the experts we talked to.
Here’s what you need to know about electrolyte sticks, packets and beverages, including when, if ever, they might support your health.
What role do electrolytes play in the body?
Key electrolytes, such as sodium, potassium, calcium and magnesium, facilitate muscle contraction and relaxation, which, most critically, helps maintain heart rate and rhythm, said Matthew Black, a registered dietitian at Ohio State University’s Wexner Medical Center.
Potassium, calcium and magnesium also support blood vessel function, keep blood pressure in check and play a part in managing blood sugar. Calcium, alongside phosphate, also hardens and strengthens bones and teeth.
And yes, sodium and chloride regulate fluid levels, helping maintain a healthy blood volume when you lose liquids via urine or sweat, or due to illness. “They control the amount of water in your cells,” said Korczak, which helps lessen the risk of dehydration.
What are the benefits of electrolyte powders and drinks?
Most people can get sufficient electrolytes from their diet, according to Black. These minerals are found in fruits and vegetables (think: leafy greens, bananas, potatoes), dairy products, fish, nuts, seeds and beans. And the kidneys are naturally adept at maintaining electrolyte equilibrium.
Research on electrolyte supplements and hydration has largely been done in endurance athletes, or during prolonged or high-intensity exercise that results in substantial electrolyte loss via sweat. In these scenarios, these beverages have been shown to rehydrate the body more effectively than regular water.
However, only a couple of small studies have been done in non-exercise scenarios and to mixed effect, with one 2025 trial of 30 people showing electrolytes can help with fluid retention. There’s no clear evidence to suggest downstream health benefits, like a boost in energy or focus, in the average active adult.
Hence why experts mainly suggest an electrolyte powder or drink in situations when you’re seriously exerting yourself or depleted, like when you:
- Engage in prolonged, vigorous exercise
- Do physical activity for more than an hour in hot weather
- Lose a lot of fluids due to vomiting or diarrhea
The American College of Sports Medicine’s position statement on exercise and fluid replacement notes that the need for electrolytes when rehydrating hinges on several variables, like the physical task (length and intensity), weather and personal factors like genetics that influence how much you sweat and your degree of electrolyte loss.
A general rule is if you’re physically active for more than an hour and sweating a lot, it may be worth drinking an electrolyte beverage, Black said. That’s different from going for a walk in the park or even most recreational fitness, he added.
There are also scenarios when an electrolyte re-up may be useful, for instance if you’re losing fluids due to vomiting or diarrhea, Black said. Conditions that impair fluid balance — such as postural orthostatic tachycardia syndrome (POTS), which causes heart rate changes upon standing — or those that influence nutrient absorption — such as inflammatory bowel disease, the autoimmune disorder that can damage the digestive tract — may warrant taking an electrolyte supplement, too, Black said, but it’s key to talk to your doctor first.
Certain lifestyle behaviors could also leave you depleted of electrolytes or dehydrated, and the powders can be a practical fix, Korczak said. For instance, drinking alcohol “triggers your kidneys to flush out water” and “drains your electrolyte pool,” she said. Sipping an electrolyte beverage between or after alcoholic ones can replenish the losses and may lessen a hangover.
Others may not have time or resources to consistently eat nutritious meals, and the packets could help fill the gap — though Korczak said it’s preferable to consume electrolytes in whole foods. This way, you’re getting the benefit of other nutrients like fiber and vitamins too.
Can you overdo it on electrolytes?
Korczak said many people gravitate toward these products because they like the taste, and it encourages them to drink more water. On occasion, that may be a helpful, if pricey, hydration tactic — your kidneys will filter excess electrolytes into your urine. But depending on the contents of the electrolyte powder or drink, which vary widely, consuming one too often could have negative consequences.
For instance, some popular electrolyte packets contain upward of 500 or 1,000 milligrams of sodium. The American Heart Association recommends no more than 1,500 milligrams daily for most adults, Black said, and many people already surpass that amount because of the added salt in prepared and processed foods. Going overboard could raise your blood pressure.
Electrolyte supplements can also contain sugar and are often acidic, which research suggests could degrade tooth enamel.
Your kidneys may also struggle to handle the extra from multiple highly concentrated supplements.
If you’re pregnant, sodium-sensitive (for instance, due to high blood pressure or heart failure) or have a condition that affects fluid regulation, like kidney disease, ask your doctor before taking electrolytes, Korczak said. Certain medications, such as diuretics and others commonly prescribed as you get older, may also affect your electrolyte balance, as can aging itself.
An electrolyte surplus causes similar symptoms as a deficiency — muscle weakness or cramps, fatigue, headache, confusion, nausea and in severe cases, heart rhythm issues and seizures — and can be as dangerous.
“Like anything else, I think you have to be mindful of what you’re using, pay attention to what’s on the label and think about yourself and if you have any medical conditions or symptoms to be aware of,” Korczak said.
A safer bet for most people is focusing on a balanced diet rich in plant foods, and making sure you are drinking enough water particularly when you are exercising or in hot weather. “Unless you’re ill or you have some other reason why you’re having difficulty staying hydrated, I would say to just be cautious,” Black said.
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