What are electrolytes and when to use them?

You’ve probably heard about electrolytes, but do you know what they actually are and when it’s best to use them? Electrolytes are not only needed by athletes but by all of us. Why? Let’s take a look.

So, what exactly are electrolytes?

We won’t bore you with science, let’s summarize it. Simply put, electrolytes are minerals that conduct electrical current in our body. They are found in the form of ions, or particles with an electric charge.

Why does our body need electrolytes? Their main function is maintaining fluid balance, supporting the proper functioning of nerves, muscles, and overall contributing to good hydration of the body. Without enough electrolytes, fatigue, headaches, muscle cramps, or a decrease in performance can occur. This applies not only to physical but also mental performance.

The most important electrolytes include:

  • Sodium – Regulates the amount of water in the body, supports nerve and muscle function.
  • Potassium – Helps with muscle activity, including the heart, and supports nerve impulses.
  • Calcium – Important for muscle contractions, blood clotting, and bone health.
  • Magnesium – Helps with muscle relaxation, energy production, and nerve signal transmission.
  • Chloride – Maintains acid-base balance and the volume of body fluids.

Each of these electrolytes plays a specific role in the body, but together they form a unified team that ensures the proper functioning of our body.

When is it appropriate to replenish electrolytes?

What is important to mention is the fact that we naturally lose electrolytes. Most commonly through sweat, urine, but also during illness. It’s not always necessary to immediately reach for supplements, but in some situations, replenishing them can be very beneficial:

  • During intense physical activity – for example, after running, strength training, or a long hike. During exertion, the body loses sodium and potassium with sweat.
  •  In hot weather – higher temperatures mean more sweating, and thus greater loss of electrolytes.
  • During illness – diarrhea, vomiting, or fever can quickly disturb electrolyte levels.
  • When experiencing fatigue, cramps, or weakness – these symptoms may signal an imbalance that electrolytes can help balance.

Who can benefit from electrolytes?

Let’s take a look at who will most benefit from electrolytes and for whom they are ideal:

  • Athletes and active people – During intense physical performance, there is a significant loss of electrolytes through sweat. Replenishing electrolytes helps maintain hydration, prevent cramps, and improve recovery.

  • High temperatures – An ideal example when it is literally necessary to replenish electrolytes is hot weather. High temperatures increase sweating, which can lead to excessive electrolyte loss. If you don’t hydrate properly, it can lead to fatigue, weakness, or dehydration.

  • People experiencing digestive issues – This could include digestive troubles or even high fevers, which cause excessive electrolyte loss. Replenishing electrolytes helps restore balance.

  • Older adults – As we age, the body may have difficulty regulating electrolyte levels. Older individuals often need to replenish electrolytes to prevent dehydration and other health issues.

  • Hangover – What you might not know is that alcohol causes dehydration and electrolyte loss, contributing to nausea and headaches. Electrolytes help restore fluid balance and speed up recovery.

Who should not use electrolytes?

Electrolytes are essential for our body, but that doesn’t mean that the more we take, the better. Some groups of people should monitor their intake, especially people with kidney disease, high blood pressure, or cardiovascular issues.

Additionally, there are medications that can affect electrolyte balance in the body, so it is always best to consult with a doctor before taking supplements. These medications include diuretics, ACE inhibitors, corticosteroids, or aldosterone inhibitors.

How to replenish electrolytes?

Electrolytes can be replenished in two ways: through diet or dietary supplements.

1. Electrolytes in food – Electrolytes are naturally found in foods like:

  • bananas (potassium),
  • nuts and seeds (magnesium),
  • dairy products (calcium),
  • salty foods (sodium),
  • leafy greens.

2. Supplements and sports drinks – if you need a quick and practical solution, quality supplements are ideal. A great option is BrainMax LAUF Preworkout, which, in addition to electrolytes, contains substances to support performance, focus, and motivation during training.

Conclusion

Electrolytes are not just for elite athletes. If you sweat a lot, exercise, or suffer from cramps or fatigue, replenishing them can be key to your health and performance. Listen to your body, sometimes the right balance of minerals can make a bigger difference than you might expect.