Colección: Electrolytes for marathon training

Marathon training is a long game. Months of long runs, back-to-back sessions, and race day execution all hinge on one thing most runners underestimate: fluid and electrolyte balance. If you've ever hit the wall, cramped up in the final kilometres, or felt inexplicably flat despite solid fitness, your electrolyte levels may have been the missing piece.

SALTE is a clean, sugar-free electrolyte powder designed to replace what you lose through sweat, without the fillers, artificial ingredients, or sugar crashes that come with most sport drinks on the market.

What Are Electrolytes and Why Do Runners Need Them?

Electrolytes are minerals that carry an electrical charge and regulate how your body manages fluid and muscular activity. The key ones for runners are potassium, magnesium and calcium alongside sodium, each playing a role in how your body handles the physical stress of marathon training.

When you run, you sweat. And everything lost in sweat includes more than water. Electrolytes lost through sweat need to be replaced, or performance suffers. This is especially true on a long run, where cumulative electrolyte loss adds up kilometre by kilometre.

What Runners Lose in Sweat

Runners lose anywhere from 500 to over 1500 milligrams of sodium per litre of sweat, making it the most important electrolyte to replace. A sodium level that drops too low during a long run can lead to hyponatremia, where the blood becomes over-diluted. Symptoms include nausea, dizziness, and in serious cases, confusion and worse.

Beyond sodium, runners lose meaningful amounts of potassium and magnesium. These minerals work together to support muscle functioning and regulate fluid movement between cells. When any of them fall short, you feel it: heavy legs, poor coordination, and cramping that won't let go.

Simply adding table salt to your water is not enough. While sodium is the priority, replacing the full spectrum of electrolytes lost in sweat is what makes the real difference between surviving a long run and running it well.

Electrolyte Intake During Marathon Training

Smart electrolytes intake is not just a race day concern. It starts in training, specifically during any run lasting longer than 60 to 90 minutes.

For shorter easy runs, water is often sufficient. But as distance climbs, your fluid and electrolyte needs climb with it. A typical marathon training block includes weekly long runs, tempo sessions, and cumulative daily mileage that depletes your body's mineral reserves over time. Without consistent replenishment, you may carry a low-grade electrolyte deficit into each session, blunting recovery and increasing the risk of injury.

SALTE comes in single-serve sachets that fit into a hydration vest, kit bag, or desk drawer, making consistent electrolyte intake easy to stick to whether you're mid-run or recovering at your desk.

Choosing the Right Electrolyte Product

The market is full of options that look like sports nutrition but deliver more sugar than substance. Many a sport drink is more candy than performance tool, loaded with glucose and artificial dyes that cause the exact energy crash you're trying to avoid.

An electrolyte sachet or powder gives you more control. You separate your hydration from your caloric intake, adjust concentration to your sweat rate, and avoid ingredients you don't need. SALTE contains no sugar and no artificial ingredients, naturally sweetened with steviol glycosides and real fruit aromas, so it works alongside your existing nutrition plan without interfering with it.

For most marathon runners, the best approach is a clean electrolyte product like SALTE throughout training and on race day, paired with gels, real food, or other carbohydrate sources based on your individual needs.

Race Day Electrolyte Strategy

Race day is not the time to experiment. Whatever fluid and electrolyte strategy you've rehearsed in training is the one you follow on the day.

In the 24 hours before your race, focus on maintaining fluid balance without overhydrating. Drinking excessive plain water can actually dilute your sodium level, which is the opposite of what you want. A sachet of SALTE the evening before and again on race morning may support stable electrolyte levels going into the start line.

During the race, take your electrolyte product at regular intervals rather than waiting until you feel thirsty or depleted. Thirst is a lagging signal. By the time you notice it, electrolyte loss has already started to affect your pace.

After the race, prioritise fluid and electrolyte recovery alongside food. Replenishing what was lost in sweat supports muscle recovery and helps your body return to balance faster.

Sports Nutrition That Works With Your Training

Electrolytes don't exist in isolation within your sports nutrition plan. They work alongside carbohydrates, protein, sleep, and training load to determine how well you adapt and how strong you feel come race day.

SALTE is third-party tested, vegan, and free from artificial ingredients. Clean electrolytes, Scandinavian standards, and a 90-day satisfaction guarantee.

Charge your balance. Run your best.