Abstract Summary

Objective: To evaluate the electrolyte content of coconut water and compare it to that of traditional sports drinks.

Context: Coconut water is often promoted as a natural alternative to sports drinks, given its content of electrolytes such as potassium, sodium, calcium, and magnesium. This study aimed to determine if coconut water’s electrolyte levels are sufficient for effective hydration, particularly in athletic and physically active populations.

Methods Used

Approach: The study analyzed the electrolyte profile of coconut water (Cocos nucifera) and compared it with that of a leading sports drink.

Data Collection: Laboratory analyses were conducted on samples of coconut water from different sources. The researchers measured levels of key electrolytes (potassium, sodium, calcium, magnesium) and monitored the hydration status of participants after consuming coconut water versus a sports drink.

Researchers' Summary of Findings

Coconut water was found to contain high levels of potassium, ranging between 250-700 mg per 8-ounce serving, significantly higher than most commercial sports drinks. However, its sodium levels (20-30 mg per 8-ounce serving) were notably lower than that of sports drinks, which commonly contain around 100 mg of sodium. While coconut water can support hydration due to its potassium content, the lower sodium concentration may limit its effectiveness as a complete electrolyte-replacement beverage for intense or prolonged exercise.

DOI: 10.1016/j.jnutbio.2022.05.003