Currently, no direct evidence indicates that energy drinks and shots are addictive. However, caffeine, which is found in such products, can cause mild drug dependence and withdrawal symptoms (headache, drowsiness, and irritability) in some people.[1]
References
- ^Juliano LM, Griffiths RRA critical review of caffeine withdrawal: empirical validation of symptoms and signs, incidence, severity, and associated featuresPsychopharmacology (Berl).(2004 Oct)