The myth of cucumber water: How effective is it really for cramps?

A nerve reflex caused by cucumber water

For many years, it was assumed that muscle cramps were primarily caused by a deficiency in electrolytes such as salt or magnesium. However, researchers suspect that cucumber water has a different effect. The highly acidic liquid and its intense flavour activate certain receptors in the mouth and throat. This triggers a nerve reflex which can act on the muscles and reduce cramping. The key point is that this mechanism kicks in within a few seconds and therefore works much faster than would ever be possible through the intake of minerals.

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In a US study, the average duration of muscle cramps following the consumption of cucumber water was around 85 seconds. In contrast, the cramps lasted around 134 seconds among participants who drank plain water. Although the scientific findings are not entirely consistent overall, many experts consider a certain antispasmodic effect to be plausible. For example, sports scientist Prof. Lars Donath from the German Sport University Cologne emphasises that cucumber water could well have a beneficial effect on acute muscle cramps.

No preventative measure

For endurance athletes, one thing is particularly important: cucumber water is not suitable as a preventative measure. Anyone who takes a sip of it before training or a long ride will not be able to reliably prevent cramps.

Adequate fluid intake, an appropriate intake of electrolytes and magnesium remain the cornerstone of cramp prevention. Cucumber water can be regarded more as a quick fix once the symptoms have already set in.

Professional tennis player Carlos Alcaraz provided a notable example at the 2026 Australian Open. When he was struggling with cramps during the semi-final, he reached for a small bottle of cucumber juice and was able to carry on playing almost symptom-free shortly afterwards. Whether this is an isolated case or not, the drink is inexpensive, readily available and easy to take with you, even on longer cycle rides.

Tension and relaxation

If a muscle cramp occurs, you should first gently stretch the affected muscle and then tense it slightly. This combination often helps to relieve the cramp more quickly. Heat can also help to relax the muscles and improve blood circulation.

And sometimes the most effective solution is also the simplest: giving your body a short break. After all, cramps are often a clear sign that your muscles have temporarily reached their limit.