INTRODUCTION
intellectual disabilities, aggressive incidents
Aggressive behaviour is common in people with intellectual disabilities. Prevalence rates range from 10% to more than 45% depending on the definitions of aggressive behaviour, the sub‐population studied and the measurement methods used (Bowring et al., In vivo and in vitro research has revealed multiple mechanisms of action by which micronutrients may influence the central nervous system (CNS), including neurotransmitter synthesis, energy production and neuroprotective properties (Calderon‐Ospina & Nava‐Mesa, Given the effectiveness in randomised controlled trails (RCTs) among other study populations, we conducted a randomised trial on the effectiveness of dietary supplements to reduce aggressive incidents in people with intellectual disabilities. Other studies on aggressive behaviour in people with intellectual disabilities have shown that recruiting enough participants can be a problem (Oliver‐Africano et al., 