This clinical study is a single-blind, placebo-controlled, three-way cross-over trial evaluating the rehydration efficacy of two nutritional beverages compared to water, after one administration. The investigational products are gum acacia alone, and combined with sea electrolytes as magnesium. Participants, physically active men undergo exercise-induced dehydration followed by controlled rehydration procedure with each product in randomized sequence. The study includes standardized preconditions (diet, hydration, activity control), exercise and rehydration protocols.

Gam acacia has the benefit of few preclinic studies in murin models showing significant improvements on electrolytes and water absorption, but its effect on hydration in human has never been evaluated.

The combination with sea electrolytes has been developed to optimise and reduce the total concentration of electrolytes into the beverage compared to standard formulations proposed for rehydration in sport application.

Inclusion Criteria:

• BMI 18-25
• Regular physical training on a recreational level
• Resting pulse rate <100; resting blood pressure <140 mmHg/<100 mmHg

Exclusion Criteria:

• Participant suffering from acute or recently occurred (in the past 2 weeks) sickness e.g. common cold or gastrointestinal problems
• Injuries that would limit exercise performance
• History or presence of cardiovascular, metabolic, endocrine musculoskeletal, autoimmune or renal condition/disorder which per investigator's judgement could interfere with the results of the study or the safety of the participant

Sponsor and Biostatistician