“…The beneficial effects of these plants have been ascribed to their bioactive components with appetite stimulant properties mediated by essential oils, mainly trans-anethole in fennel (Saeedi et al, 2017;Hajalizadeh et al, 2019;Kargar et al, 2021) and carvacrol in oregano (Lei et al, 2018;Bosco Stivanin et al, 2019;Tapki et al, 2020), immune enhancing activity (Hashemipour et al, 2013;Badgujar et al, 2014), hepato-protective effects, hypoglycemic and hypolipidemic effects, and antioxidant and anti-inflammatory potential (due to compounds such as essential oils, flavonoids, phenolic acids, and others), antimicrobial properties (due to oleic acid, linoleic acid, 1,3-benzenediol, undecanal, 2,4-undecadienal, and 5-hydroxy-furanocoumarin in fennel and carvacrol in oregano; Badgujar et al, 2014;Hashemipour et al, 2013;Ri et al, 2017), and modulation of the digestive processes (Hashemipour et al, 2013;Saeedi et al, 2017;Wu et al, 2021).…”