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. 2022 May 18;14(10):2111. doi: 10.3390/nu14102111

Figure 2.

Figure 2

Flowchart of the selection strategy and method (PRISMA statement). * Search terms were as follows: ((medicinal plant *) AND ((antidepressant) OR (mental stress) OR (mood disorder *) OR (insomnia) OR (sleep) OR (anxiety) OR (cognitive impairment *) OR (circadian clock) OR (circadian rhythm) OR (dementia) OR (memory) OR (adaptogen *) OR (focus and attention) OR (fatigue)) NOT ((Alzheimer’s disease *) NOT (Parkinson’s disease *)). # Search terms were as follows: (plant name OR plant name OR ……) AND (clinical study) AND ((anxiety) OR (insomnia) OR (antidepressant) OR (cognitive impairment *) OR (fatigue) OR (memory)). § Search terms were as follows: (plant name OR plant name OR ……) AND ((gut microbiome) OR (gut microbiota) OR (gut bacteria)). & Search terms were as follows: “plant name” AND (“gut microbiome” OR “gut microbiota” OR “gut bacteria” OR “intestinal flora”).