AJ Anderson

Open water swimming hydration requires aggressive pre-race sodium loading 12–24 hours out, minimal mid-race intake for swims under 90 minutes, and immediate electrolyte replenishment at exit—because you lose 300–700 mg sodium per hour even in cool water.

The best electrolyte powder depends on your sport: endurance athletes need high-sodium formulas (500-1000mg per serving), HIIT athletes benefit from rapid-absorption blends with glucose, and multi-sport competitors should prioritize magnesium for cramp prevention. Fast Pickle, LMNT, and Skratch Labs lead for performance-focused athletes.

The best pre-workout hydration protocol starts 2-4 hours before activity with 5-7 ml/kg bodyweight of fluid plus 300-500 mg sodium, then tops off 15-30 minutes pre-workout with 200-300 ml and electrolytes—adjusted by sport intensity, sweat rate, and duration.

Salt tablets provide 100–200 mg sodium per capsule with zero water, making them ideal for ultrarunners who fuel separately. Sports drinks deliver electrolytes, carbohydrates, and fluid together, better suited for marathoners who need integrated hydration and energy.

Effective triathlon transition hydration requires pre-loading sodium 60–90 minutes before the swim, sipping 4–6 oz of electrolyte drink during T1, and reserving caloric fluids for T2 when glycogen demands peak on the run.

Coconut water delivers 5× more potassium than most sports drinks but provides only 25-50 mg sodium per serving—insufficient for high-sweat athletes. Traditional sports drinks offer 110-160 mg sodium plus fast-acting carbs, making them superior for efforts over 60 minutes or high-intensity sessions.

A properly formulated homemade electrolyte drink requires 300–600 mg sodium per 16 oz, 60–100 mg potassium, 15–30 g carbohydrate, and fluid—ratios that change based on whether you’re fueling a long run, a HIIT session, or post-workout recovery.

For a cycling century, the best sports drinks deliver 60-90 grams of carbohydrates per hour plus 500-700mg sodium to match sweat losses during 5-7 hours in the saddle. Fast Pickle offers rapid electrolyte replenishment for cramp prevention, while carb-heavy options like Skratch Super High-Carb and Maurten 320 support sustained power output across all four quarters of the ride.

The most common hydration mistakes marathon runners make are overdrinking plain water during the race, failing to calculate personal sweat rate before race day, skipping sodium pre-loading in the 48 hours prior, and ignoring early thirst cues that signal electrolyte imbalance rather than simple fluid deficit.

Nuun offers low-calorie, effervescent tablets ideal for light training and recovery, while Skratch Labs provides carb-fueled hydration designed for endurance sessions over 90 minutes. The choice hinges on workout intensity and fueling strategy.