Re-Lyte is a solid electrolyte powder for most healthy, active people. It delivers a strong dose of sodium (810 mg), potassium (400 mg), magnesium (50 mg), and calcium (60 mg) per serving with zero calories, zero sugar, and no artificial sweeteners. Whether it’s “good for you” depends on your activity level, diet, and health status, particularly when it comes to blood pressure and sodium intake.
What’s Actually in Re-Lyte
Each serving mixes into 16 to 32 ounces of water and provides four key electrolytes. The base ingredient is Redmond Real Salt, a mined sea salt that supplies the bulk of the sodium. Potassium citrate, magnesium malate, magnesium glycinate, and calcium carbonate round out the mineral profile. Flavored versions use stevia leaf extract for sweetness and natural fruit flavors. There’s also an unflavored version with nothing but the salt and mineral compounds, which is worth knowing if you’re sensitive to sweeteners or want to add it to a smoothie without altering the taste.
The ingredient list is genuinely short compared to many sports drinks. There are no added sugars, no artificial colors, and no maltodextrin. The flavored varieties do contain coconut water powder, so keep that in mind if you have a coconut allergy.
Who Benefits Most
Re-Lyte fits a few specific situations well. If you follow a ketogenic or low-carb diet, your body retains less water and flushes sodium faster than usual because lower insulin levels signal the kidneys to release more fluid. That mineral loss is what drives “keto flu,” the headaches, fatigue, dizziness, and muscle cramps that hit in the first week or two of carb restriction. An electrolyte mix with this much sodium and potassium directly addresses that imbalance.
The same logic applies during intermittent fasting. When you’re not eating for extended windows, you’re not getting minerals from food. A zero-calorie electrolyte drink lets you replenish without breaking your fast. For athletes and heavy sweaters, the high sodium content replaces what’s lost through prolonged exercise or heat exposure more effectively than lower-sodium options like Nuun, which contains only 300 mg of sodium per serving.
The Sodium Question
At 810 mg of sodium per serving, Re-Lyte is a high-sodium product. That’s roughly a third of the federal daily recommendation of less than 2,300 mg for adults. The average American already consumes over 3,400 mg of sodium per day from food alone, so adding Re-Lyte on top of a typical diet pushes sodium intake higher still.
For people who eat a whole-foods diet, exercise regularly, or follow a low-carb plan, this extra sodium is often exactly what’s needed. These groups tend to consume less processed food (the primary source of dietary sodium) and lose more sodium through sweat or reduced water retention. But if you have high blood pressure or kidney concerns, that 810 mg per serving is significant. Excess sodium raises blood pressure, and the effect is more pronounced in people who already have hypertension. In that case, Re-Lyte may not be the right choice without guidance from a healthcare provider.
If you find the full serving too salty, the manufacturer suggests starting with half a scoop and adding more water to dilute it.
How It Compares to Other Brands
Re-Lyte sits in the middle of the high-sodium electrolyte category. LMNT delivers 1,000 mg of sodium but only 200 mg of potassium, giving it a lopsided 5:1 sodium-to-potassium ratio. Re-Lyte’s ratio is closer to 2:1, which better reflects how the body uses these two minerals together. Potassium helps counterbalance sodium’s effect on blood pressure, so a more balanced ratio is generally preferable.
Liquid IV provides 510 mg of sodium and 380 mg of potassium per serving, making it a moderate option, though older formulations included added sugar. Nuun Sport is the lightest of the group at 300 mg sodium and 150 mg potassium, better suited for casual hydration than heavy exercise or keto support.
- Re-Lyte: 810 mg sodium, 400 mg potassium, 0 g sugar
- LMNT: 1,000 mg sodium, 200 mg potassium, 0 g sugar
- Liquid IV: 510 mg sodium, 380 mg potassium, 0 g sugar
- Nuun Sport: 300 mg sodium, 150 mg potassium, 1 g sugar
Re-Lyte’s combination of high sodium, solid potassium, and the inclusion of magnesium and calcium makes it one of the more complete options in this category.
What It Won’t Do
Re-Lyte is not a certified product for competitive athletes who undergo drug testing. A search of the NSF Certified for Sport database returns no results for Re-Lyte or Redmond Life, meaning the product has not been independently verified as free of banned substances. If you compete in a tested sport, that’s worth considering.
The magnesium content, at 50 mg per serving, is also modest. Adults need 310 to 420 mg of magnesium daily depending on age and sex, so Re-Lyte contributes only a small fraction. If you’re supplementing specifically for magnesium (for sleep, muscle recovery, or cramp prevention), you’ll likely need a separate supplement.
Is It Worth Using Daily
For daily use, Re-Lyte works well if your lifestyle creates a genuine electrolyte deficit. That includes regular intense exercise, a low-carb or ketogenic diet, fasting, working outdoors in heat, or simply not eating much processed food (which is where most people get their sodium). In those situations, an electrolyte supplement fills a real gap, and Re-Lyte’s clean ingredient list and balanced mineral profile make it a reasonable choice.
If you eat a standard diet with plenty of packaged or restaurant food and exercise moderately, you’re likely already getting enough sodium and may not need a daily electrolyte supplement at all. Plain water handles hydration fine for most sedentary to lightly active people. Using Re-Lyte in that context adds sodium your body doesn’t necessarily need.