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There are growing interests in using dietary supplements to improve athletic performance. This study aimed to evaluate the effect of the food ration bar enriched with β‐alanine, L‐arginine, and Nigella sativa on athletic performance and inflammation following intense military training.

This double‐blind, randomized, controlled clinical trial was conducted on 54 new cadets. Eligible participants were randomly assigned in a 1:1 ratio to receive food ration bars enriched with arginine (2 g/day), β‐alanine (2 g/day), and Nigella sativa (2 g/day) or nonenriched food ration bars during a 2‐week military training. Aerobic and anaerobic performances were evaluated by the Cooper and RAST tests, respectively.

A significant increase in anaerobic powers (min, mean, and max) and a significant reduction in fatigue index were observed in the intervention group as compared to the control group …