ÖKO-TEST 2025: No Electrolyte Powder Passes the Test

Marketing Promises, Little Effect

Electrolyte powders are trending. They claim to quickly restore fluid and mineral balance after exercise and promote faster recovery. But the latest review from ÖKO-TEST (Issue 07/2025) shows that none of the 25 tested products deliver on these promises.

Many contain excessive amounts of magnesium, potassium, or sodium—others have too few carbohydrates to qualify as proper sports drinks. Some were rated "unsatisfactory" due to potentially harmful ingredients.

Not Suitable for Athletic Use

Many products use terms like "hydration" or "iso-drink" in their branding—but their composition does not align with scientific recommendations. According to the German Nutrition Society (DGE) and EU guidelines, sports drinks should be isotonic or slightly hypotonic and provide at least 20 g of carbohydrates per liter to maintain performance during prolonged activity. Many tested powders fall short of this benchmark—or include excessive minerals, which can further strain the body.

Misleading Claims and Poor Labeling

ÖKO-TEST also evaluated packaging and marketing statements. The result: misleading product claims, incomplete labeling, and unnecessary additives like iron or copper. Only eleven products were rated as “satisfactory,” but none received a recommendation.

The conclusion is clear: athletes should not rely on flashy marketing but instead take a close look at ingredients. Manufacturers, in turn, need to adhere more closely to evidence-based nutritional standards.

Photo: Unsplash / by Zoshua Colah