The manufacturer lists sodium chloride among the ingredients, but not the exact amount of sodium in milligrams per dose. From the salt content data (0.1 g per dose), we can estimate approximately 40 mg of sodium, which, at the recommended dilution (16 g per 200 ml of water), is well below the lower limit of the recommended range of 20-50 mmol/L for electrolyte replacement during exercise (McCubbin, 2025). The missing precise label declaration makes it difficult to compare with other isotonic drinks and to assess whether the product is sufficient for your level of sweating. If you need precise electrolyte dosing, we recommend products that explicitly state the mg values of sodium, magnesium and potassium.

Based on the estimated sodium content (approximately ~40 mg or ~9 mmol/L per dose at the recommended dilution), this product is likely not sufficient as the sole source of electrolytes during prolonged or heat-related exercise, where recommendations are significantly higher (20-50 mmol/L; McCubbin, 2025). Excessive intake of low-electrolyte fluid during prolonged sweating is associated with a risk of exercise-associated hyponatremia (Armstrong et al., 2025; PMC8663108, 2021). For a marathon in the heat, we recommend considering an additional source of sodium (e.g., salty snacks, electrolyte tablets) alongside this product, or choosing an isotonic drink with a higher, clearly stated sodium content.

Sucralose is one of the sweeteners that EFSA has assessed as safe for use within a defined acceptable daily intake (ADI), and it is an approved ingredient in food products in the EU. With typical use of this isotonic drink (one scoop daily), the amount of sucralose is far below the limits that would pose a risk. If you personally prefer products without artificial sweeteners, this is a matter of taste preference rather than a documented safety risk. The same applies to the added artificial coloring (copper complexes of chlorophylls), which is approved for use in foods.

The manufacturer explicitly states that the product may contain traces of milk, soy, eggs, celery, sulfites, fish, crustaceans and nuts, indicating a risk of cross-contamination during production. If you have a diagnosed allergy to nuts or any of the listed allergens, we advise against consuming this product without first consulting an allergist or physician, as such general warnings do not guarantee the absence of traces. It is better to choose a product with a narrower, more specific allergen list or one that is certified to be produced in a nut-free facility.