ACTIVITY GUIDE RUNNING
Electrolytes & Creatine for Women Running After 40
You're sweating more than it feels like, and it's not just water leaving your body. Here's the sodium math behind a run — and where EverAble fits.
The short version: recreational runners can lose close to a liter of sweat an hour in warm weather — real sodium loss, not just water.
0.85–1.0 L/hr
Sweat rate for recreational runners in warm weather above 68°F (peer-reviewed study)
690–1,150mg
Sodium lost per liter of sweat during exercise (Gatorade Sports Science Institute)
~1.6g
Estimated sodium lost over the course of a marathon-distance run (GSSI)
Why this sport, and why it hits differently after 40
Running burns through fluid fast
The CDC classifies jogging and running as vigorous-intensity exercise, and the Compendium of Physical Activities puts a typical recreational pace at 7.5 to 9.3 METs depending on speed. In warm conditions above roughly 68°F, a peer-reviewed study of recreational runners and triathletes measured sweat rates around 0.85 to 1.0 liters per hour — a meaningfully faster fluid loss than most lower-intensity activities.
Sodium goes with it — and it adds up over distance
Gatorade Sports Science Institute (GSSI) data puts typical sweat sodium concentration between 690mg and 1,150mg per liter, and endurance athletes can lose sodium at a rate of roughly 1.2g per hour. Over the course of a full marathon, GSSI estimates total sodium loss at around 1.6g — a real, cumulative deficit if you're only replacing fluid with plain water.
Balance matters in both directions
GSSI research on older athletes notes that aging brings a measurably weaker thirst response, making it easier to under-hydrate without noticing. On the other side of the same coin, peer-reviewed marathon research has also found that drinking more fluid than you're actually losing to sweat — without replacing sodium — carries its own well-documented risks; researchers found the amount of fluid consumed, not the type of beverage, was what predicted the problem. Both point to the same underlying idea: matching fluid intake to what you're actually losing, sodium included, rather than just drinking on instinct.
Where EverAble fits
One scoop, full dose of both
EverAble's Creatine + Electrolyte Powder puts the electrolyte side of that routine into the same scoop as your daily creatine. One serving carries 5g of creatine monohydrate, along with 1,000mg sodium, 200mg potassium, and 60mg magnesium malate — a full dose of both, not a diluted trace amount of one.
Built for the routine you already have
It's formulated to support hydration and electrolyte balance, mixed into water once a day, before or after a run.
This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Other sports
Questions with answers
Why do I sweat so much when I run, compared to other workouts?
Running is classified as vigorous-intensity exercise by the CDC, and a peer-reviewed study of recreational runners and triathletes measured sweat rates around 0.85 to 1.0 liters per hour in warm weather — meaningfully higher than lower-intensity activities. That sweat carries real sodium with it, typically 690mg to 1,150mg per liter, per Gatorade Sports Science Institute data.
Do runners over 40 need to think about hydration differently?
The physical demand of a run doesn't change much with age, but the body's thirst signal does: GSSI research on older athletes found a consistently weaker thirst response to the same level of dehydration seen in younger people. That makes it worth drinking on a schedule during longer runs rather than waiting to feel thirsty.
How much sodium do I actually lose over a run?
It varies by person, heat, and pace, but GSSI data puts typical sweat sodium concentration between 690mg and 1,150mg per liter, with endurance athletes losing sodium at roughly 1.2g per hour. Over a full marathon, GSSI estimates total sodium loss at around 1.6g.
Is it possible to drink too much water while running?
Yes — peer-reviewed marathon research has found that drinking more fluid than you're actually losing to sweat, without replacing sodium, carries its own well-documented risks. The research specifically found that the volume of fluid consumed, not whether it was water or a sports drink, was what predicted the problem — which is why matching intake to what you're actually losing matters more than just drinking as much as possible.
What's actually in EverAble's Creatine + Electrolyte formula?
One scoop delivers a full dose of both sides — not a diluted trace of one.
5g creatine monohydrate • 1,000mg sodium • 200mg potassium • 60mg magnesium malate
Is this for marathoners only, or does it work for casual, recreational runners too?
It's built for active adults 40+ who run regularly — whether that's training for a race or a standing weekend jog — not for elite marathon training protocols. If you're logging enough miles to notice sweat loss or fatigue, the formula is aimed at you.
Why do I sweat so much when I run, compared to other workouts?
Running is classified as vigorous-intensity exercise by the CDC, and a peer-reviewed study of recreational runners and triathletes measured sweat rates around 0.85 to 1.0 liters per hour in warm weather — meaningfully higher than lower-intensity activities. That sweat carries real sodium with it, typically 690mg to 1,150mg per liter, per Gatorade Sports Science Institute data.
Do runners over 40 need to think about hydration differently?
The physical demand of a run doesn't change much with age, but the body's thirst signal does: GSSI research on older athletes found a consistently weaker thirst response to the same level of dehydration seen in younger people. That makes it worth drinking on a schedule during longer runs rather than waiting to feel thirsty.
How much sodium do I actually lose over a run?
It varies by person, heat, and pace, but GSSI data puts typical sweat sodium concentration between 690mg and 1,150mg per liter, with endurance athletes losing sodium at roughly 1.2g per hour. Over a full marathon, GSSI estimates total sodium loss at around 1.6g.
Is it possible to drink too much water while running?
Yes — peer-reviewed marathon research has found that drinking more fluid than you're actually losing to sweat, without replacing sodium, carries its own well-documented risks. The research specifically found that the volume of fluid consumed, not whether it was water or a sports drink, was what predicted the problem — which is why matching intake to what you're actually losing matters more than just drinking as much as possible.
Sources
Last reviewed September 19, 2026
- Gatorade Sports Science Institute — Normative Data for Sweating Rate, Sweat Sodium Concentration, and Sweat Sodium Loss in Athletes
- Gatorade Sports Science Institute — Dietary Water and Sodium Requirements for Active Adults
- Cleveland Clinic — What To Know About Exercise and Heart Rate Zones
- New England Journal of Medicine — Hyponatremia Among Runners in the Boston Marathon (2005)
- International Journal of Sports Physical Therapy — Training Habits and Injury Rate in Masters Female Runners
