Making your own electrolyte drink takes about two minutes and costs a fraction of what store-bought mixes run. The basic formula is simple: water, salt, a source of potassium, and something for flavor. From there, you can adjust the ratios depending on whether you’re recovering from a workout, dealing with illness, or just looking for better daily hydration.
The Basic Homemade Electrolyte Recipe
Start with this foundational recipe, then customize it to your needs:
- Water: 32 oz (about 1 liter)
- Table salt: 1/4 teaspoon (roughly 575 mg sodium)
- Lite salt or salt substitute: 1/4 teaspoon (roughly 350 mg potassium)
- Sweetener: 1–2 tablespoons honey, maple syrup, or sugar
- Citrus juice: juice of half a lemon or lime
Stir or shake until the salt fully dissolves. The sweetener isn’t just for taste. A small amount of sugar actually helps your intestines absorb sodium and water more efficiently, which is the same principle behind medical rehydration solutions. If you’re trying to avoid sugar entirely, you can skip it, but absorption will be slightly slower.
Lite salt (sold as “half salt” at most grocery stores) is the key ingredient many people overlook. It’s a blend of sodium chloride and potassium chloride, giving you both electrolytes in one product. If you can’t find it, cream of tartar works as a potassium source: 1/2 teaspoon provides about 495 mg of potassium.
How Much Sodium and Potassium You Actually Need
The right electrolyte concentration depends entirely on what you’re using the drink for. The average person loses around 950 mg of sodium per liter of sweat, but individual variation is enormous. Some people lose under 200 mg per liter while others lose over 2,300 mg.
For context, here’s what popular commercial products contain per serving: LMNT packs 1,000 mg of sodium, 200 mg of potassium, and 60 mg of magnesium. Liquid I.V. contains 490 to 630 mg of sodium and 370 to 390 mg of potassium. The basic recipe above lands in a moderate range that works for most situations, but you can scale the salt up or down based on your activity level and how much you sweat.
If you’re exercising hard for over an hour in heat, lean toward 1/2 teaspoon of salt per liter. For casual daily sipping or light activity, 1/8 teaspoon is plenty. The drink should taste mildly salty but not unpleasant. If it tastes like ocean water, you’ve added too much.
Variations Worth Trying
Coconut Water Base
Coconut water is naturally rich in potassium, with about 594 mg per 12 ounces. It’s lower in sodium though, at roughly 94 mg per 12 ounces, so you still need to add salt. Use unsweetened coconut water as your liquid base, add 1/4 teaspoon of salt, and you’ve got a drink that covers both electrolytes without needing lite salt or extra sweetener.
Citrus Sports Drink
Mix 1 liter of water with 1/4 teaspoon salt, 1/4 teaspoon lite salt, 3 tablespoons fresh orange juice, 1 tablespoon lemon juice, and 1 tablespoon honey. This tastes closest to a commercial sports drink and works well for mid-workout hydration. The orange juice adds a small amount of potassium and natural sugar on top of what the other ingredients provide.
Ginger Recovery Drink
Steep a thumb-sized piece of fresh ginger in hot water for 10 minutes. Let it cool, then add 1/4 teaspoon salt, 1/4 teaspoon lite salt, and a tablespoon of honey. This version is particularly good when you’re rehydrating after stomach illness, since ginger helps settle nausea.
High-Sodium Version for Keto
People following a ketogenic diet flush sodium and potassium at higher rates and typically need 3,000 to 5,000 mg of sodium and 3,000 to 4,000 mg of potassium daily. A standard electrolyte drink won’t cover that gap on its own, but a stronger version helps: use 1/2 teaspoon of salt and 1/2 teaspoon of lite salt per liter, sipped throughout the day across multiple batches. Adding 1/4 teaspoon of magnesium citrate powder (roughly 75 to 100 mg of magnesium) addresses the third electrolyte that keto dieters commonly run low on.
Adding Magnesium
Sodium and potassium get the most attention, but magnesium matters too, especially for muscle cramps, sleep quality, and recovery. Most salt-based recipes don’t include it because common table salt and lite salt contain none.
The easiest way to add magnesium is with magnesium citrate powder, available at most health food stores. Start with a small amount, around 1/8 teaspoon per liter, which provides roughly 50 to 75 mg. Magnesium in larger doses can cause loose stools, so increase gradually. A daily target of 300 to 500 mg of supplemental magnesium is reasonable for most adults, split across your drinks and meals.
Storage and Shelf Life
Homemade electrolyte drinks don’t contain preservatives, so they have a short window. NHS pharmacy guidelines for prepared electrolyte solutions recommend discarding them 24 hours after mixing, whether stored at room temperature or in the fridge. Make a fresh batch each day.
If you want something ready to go at a moment’s notice, pre-mix the dry ingredients in bulk: combine salt, lite salt, and sugar (or another dry sweetener) in the ratio you prefer, then store the powder in an airtight container. The dry mix keeps indefinitely. When you need a drink, scoop out the right amount, add water and citrus juice, and stir.
A good dry mix ratio for individual servings: 1/4 teaspoon salt, 1/4 teaspoon lite salt, and 1 tablespoon sugar. Bag these in small portions or keep the combined mix in a jar with a note on how much to use per liter.
Mistakes to Avoid
The most common error is going overboard with potassium. Too much potassium in a single serving can cause nausea, abdominal pain, and diarrhea. In more serious cases, excess potassium leads to heart palpitations, muscle weakness, or irregular heartbeat. Stick to no more than 1/4 to 1/2 teaspoon of lite salt per liter and sip gradually rather than chugging. People with kidney disease or those on blood pressure medications that affect potassium should be especially cautious with homemade mixes.
Another mistake is using too much sugar. Commercial sports drinks often contain 30 to 40 grams of sugar per bottle. For rehydration purposes, you only need about 10 to 20 grams (roughly 1 to 2 tablespoons of honey or sugar) per liter. More than that slows fluid absorption and adds unnecessary calories.
Finally, don’t assume you need electrolyte drinks for every situation. Plain water handles most daily hydration needs perfectly well. Electrolyte drinks earn their place during prolonged exercise (over 60 minutes), heavy sweating, illness with vomiting or diarrhea, or specific dietary situations like keto. For a 30-minute walk or a normal day at a desk, water is enough.