Electrolytes: Brits warned about overusing supplements could put health at risk

Electrolytes are a popular product used by many after exercising to replenish the body with minerals lost in sweat and are crucial for rehydration.

But one NHS doctor and marathon runner has warned that overusing them could lead to health issues with your blood pressure and heart.

Dr Miranda Layton, a UK medical doctor, claims drinking too many electrolytes could see you consume too much sodium [salt] into the body. She claims this can lead to short and long-term health problems such as high blood pressure and changes to your heart rhythm.

The NHS recommends adults consume no more than 6g of salt per day, equal to around 1 level teaspoon.

While sodium content in electrolyte supplements can vary by brand, they usually contain between 250mg and 1g of salt per sachet.

Dr Layton says that unless you're exercising for more than 75 minutes, or in heat or high altitude, you won't need the added salt in your body from electrolytes.

Miranda said: "Here's what the fitness industry doesn't want you to know - you might be drinking too many electrolytes. Most electrolyte drinks are high in sodium, which is just salt. The same stuff we put on our food.

"Most people already get enough salt in their diet without factoring in salty electrolyte drinks. We know that too much salt in the blood over time can raise your blood pressure.

"But in the short term, overconsumption of electrolytes can cause dangerous changes to your heart rhythm - especially if you're not actually dehydrated. Unless you're exercising for more than 75 minutes or exercising in heat or high altitude, you probably don't need the extra salt from the electrolytes."