Table 3 Side-effects resulting from the ingestion of 1 and 3 mg/kg of caffeine using a caffeinated energy drink or the same drink without caffeine (0 mg/kg)
Item | 0 mg/kg | 1 mg/kg | 3 mg/kg |
|---|---|---|---|
Headache | 8% | 17% | 8% |
Abdominal/gut discomfort | 0% | 0% | 17% |
Muscle soreness | 17% | 17% | 17% |
Increased vigor/activeness | 17% | 8% | 58%* |
Tachycardia and heart palpitations | 0% | 0% | 17% |
Insomnia | 17% | 8% | 25% |
Increased urine production | 8% | 8% | 25% |
Increased anxiety | 0% | 8% | 8% |