Dozens of everyday drinks contain electrolytes, from plain milk to coconut water to sports drinks. Electrolytes are minerals your body uses to regulate hydration, muscle contractions, and nerve signals. The main ones are sodium, potassium, calcium, and magnesium. Whether you need a sugary sports drink or something simpler depends on how much you’re sweating and why you’re looking to replenish.
Milk: The Overlooked Electrolyte Drink
Cow’s milk is one of the most electrolyte-dense beverages you can buy, and it rarely gets credit for it. A single glass (250 mL) contains roughly 380 mg of potassium, 300 mg of calcium, 250 mg of phosphorus, 125 mg of sodium, and 32 mg of magnesium. That combination rivals or beats most commercial sports drinks on every electrolyte except sodium. Milk also delivers protein and some natural sugar, which help with recovery after exercise.
Research on post-exercise rehydration has consistently shown that milk retains fluid in the body longer than water or carbohydrate-electrolyte drinks, likely because of its protein content and balanced mineral profile. If you tolerate dairy and you’re looking for a recovery drink after a moderate workout, milk is a surprisingly effective choice.
Coconut Water
Coconut water is heavily marketed as nature’s sports drink, and it does deliver on potassium. An 8-ounce serving typically contains around 400 to 500 mg of potassium, which is comparable to a banana. It also provides small amounts of magnesium, calcium, and sodium. The catch is that coconut water is relatively low in sodium, usually under 60 mg per cup. If you’re sweating heavily in hot conditions, sodium is the electrolyte you lose fastest, and coconut water won’t replace it efficiently on its own.
For light exercise, casual hydration, or situations where you just want something more interesting than water, coconut water works well. For prolonged, heavy sweating, you’d need to pair it with a sodium source.
Sports Drinks
Traditional sports drinks like Gatorade and Powerade are specifically formulated to replace what you lose in sweat: sodium, potassium, and water, carried by sugar to speed absorption. In a 16-ounce bottle, Gatorade Thirst Quencher contains about 160 mg of sodium and Powerade contains about 150 mg. BodyArmor, which positions itself as a healthier alternative, contains only 40 mg of sodium per 16 ounces, making it a weaker choice for actual sweat replacement.
The American College of Sports Medicine recommends plain water for exercise lasting under 60 minutes. For sessions longer than an hour, a sports beverage with electrolytes and 5 to 8 percent carbohydrate content is more appropriate to maintain performance and prevent excessive electrolyte loss. If you’re exercising at moderate intensity for 30 or 40 minutes, a sports drink adds sugar and calories you don’t need.
Zero-sugar versions of these drinks (Gatorade Zero, Powerade Zero) keep the electrolytes while cutting the carbohydrates. They’re a reasonable option if you want electrolyte replacement without the calories, though the sugar in traditional formulas does serve a purpose during endurance exercise by providing fuel and speeding fluid absorption in the gut.
Pedialyte and Oral Rehydration Solutions
Pedialyte and similar oral rehydration solutions pack significantly more electrolytes than sports drinks. In a 12-ounce serving, Pedialyte Classic delivers 16% of the daily value for sodium and 6% for potassium. Compare that to Gatorade Thirst Quencher at 7% for sodium and just 1% for potassium in the same serving size. Pedialyte Sport goes even higher, with 21% of the daily value for sodium and 11% for potassium.
These products were designed for dehydration from illness, particularly vomiting and diarrhea, where electrolyte losses are more severe than from exercise alone. They contain less sugar than sports drinks, which reduces the risk of worsening diarrhea. Adults recovering from a stomach bug, a hangover, or heat-related dehydration often reach for Pedialyte for exactly this reason. The taste is less sweet and more salty than a typical sports drink, reflecting that higher mineral concentration.
Fruit and Vegetable Juices
Fruit juices are potassium powerhouses. Orange juice contains roughly 450 mg of potassium per cup. Tart cherry juice delivers about 433 mg of potassium and nearly 30 mg of magnesium per cup. Tomato juice stands out for its sodium content, typically around 600 to 700 mg per cup if it’s not a low-sodium version, plus substantial potassium.
The trade-off with juice is sugar. A cup of orange juice has about 21 grams of sugar, roughly the same as a sports drink. For hydration purposes, juice is best diluted with water or consumed alongside a meal rather than gulped down as a standalone rehydration strategy. Vegetable juices, particularly tomato-based blends, tend to have less sugar and more sodium, making them a better fit if sodium is what you’re after.
Bone Broth
Bone broth provides a savory alternative to sweet electrolyte drinks. A typical cup contains around 450 mg of sodium and 280 mg of potassium, along with smaller amounts of calcium and magnesium. It’s a practical option during illness when sweet drinks feel unappealing, or in cold weather when a warm beverage sounds better than a cold sports drink.
Quality varies widely. Homemade broth simmered for 12 to 24 hours with bones and a splash of vinegar (which helps draw out minerals) tends to have higher and more consistent electrolyte levels than many commercial brands. Store-bought versions range from mineral-rich to little more than flavored salt water, so checking labels is worth the effort.
Mineral Water
Not all water is electrolyte-free. Mineral waters vary enormously depending on their source. North American mineral waters contain anywhere from 3 to 310 mg of calcium per liter and 1 to 130 mg of magnesium per liter. European mineral waters with moderate mineralization can reach 575 mg of calcium per liter, which is more than half the daily recommended intake in a single liter of water.
By comparison, North American tap water from surface sources contains just 2 to 83 mg of calcium and 0 to 29 mg of magnesium per liter. Groundwater sources tend to be slightly richer, reaching up to 85 mg of calcium and 48 mg of magnesium. If you want electrolytes from your water without any additives, look for mineral water brands that list their mineral content on the label. The differences between brands are dramatic.
How to Choose the Right One
Your best option depends on why you need electrolytes in the first place. Here’s a practical breakdown:
- After a short workout (under 60 minutes): Plain water is sufficient. Your next meal will replace any lost minerals.
- During endurance exercise (over 60 minutes): A traditional sports drink with sodium and carbohydrates helps maintain performance and fluid balance.
- Recovering from illness: Pedialyte or a similar oral rehydration solution provides the highest electrolyte concentration with minimal sugar.
- Everyday hydration with a mineral boost: Milk, coconut water, mineral water, or diluted juice all add electrolytes without the need for a specialty product.
- Hot weather or heavy sweating: Prioritize sodium. Sports drinks, bone broth, or tomato juice are better choices than coconut water or plain fruit juice, which are low in sodium.
The key mineral you lose most through sweat is sodium, at roughly 800 to 1,500 mg per liter of sweat depending on the individual. Potassium, calcium, and magnesium losses through sweat are much smaller. For most people on most days, a balanced diet and regular water intake cover electrolyte needs entirely. Specialty drinks earn their place during prolonged exercise, illness, or extreme heat.