“…Among the 19 studies reviewed here, seven of the studies did not report any adverse side‐effects due to curcumin supplementation (i.e., listed in Table 3 as “not reported”) (Abdolahi et al, 2019; Djalali, Abdolahi, et al, 2020; Djalali et al, 2021; Djalali, Djalali, et al, 2020; Dolati, Ahmadi, et al, 2018; Dolati et al, 2019; Honarvar et al, 2021). Eight studies indicated that curcumin supplementation had no adverse side‐effects on the study participants (Abdolahi et al, 2017, 2018, 2021; Ahmadi et al, 2018; Dolati, Aghebati‐Maleki, et al, 2018; Dutzmann et al, 2016; Parohan et al, 2019; Ye et al, 2018). In three studies, gastrointestinal‐related side effects (e.g., diarrhea) were reported (Baum et al, 2008; Chico et al, 2018; Ringman et al, 2012).…”