This study determined the effects of 90 days of usage of the nutritional supplement, Ninja, on objective urinary ELISA testing neurotransmitter levels and subjective responses (including SF-36 and VAS outcome based) in regards to athletic peak performance.

214 healthy athletic males, ages 18 – 35 years old participated for 90 days in ingesting 11.34g/day of placebo or Ninja 30 minutes prior to exercise or immediately in the morning on non-exercise days. Baseline neurotransmitter levels and subjective responses were collected before administration of Ninja. Same day as baseline levels, neurotransmitter levels were collected at 30, 90, 120, 240 and 480 minutes after initial administration of placebo or Ninja. Furthermore, neurotransmitter levels and subjective responses were collected at the 91 day mark, 105 day mark and 120 day mark.

214 healthy athletic males, ages 18 – 29 years old with an average age of 24.9 completed the study. All participants passed a medical screening which included a complete physical exam and laboratory CMP and CBC blood markers. All participants stated they participate consistently, at least 3 days a week, in a resistance training program.