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. 2019 Sep 17;11(9):2238. doi: 10.3390/nu11092238

Table 1.

Types of plant extracts tested in the studies.

Plant Extract(s) of 1 Number of Studies References
Camellia sinensis L. Kuntze (green tea) 9 [48,49,50,51,52,53,54,55,56]
Capsicum annuum L. 5 [21,53,57,58,59]
Coffea sp. 4 [60,61,62,63]
Camellia sinensis L. Kuntze (green tea) +
Capsicum annuum L. +
Piper nigrum L. +
Fucus vesiculosus L. 2 +
Allium sativa L.		 1 [64]
Camellia sinensis L. Kuntze (green tea) +
Ilex paraguariensis A. St.-Hil. (yerba mate) +
Paullinia cupana Kunth +
Coffea sp. +
Serenoa repens (W. Bartram) Small +
Polygonum multiflorum Thunb. +
Eleutherococcus senticosus (Rupr. & Maxim.) Maxim. +
Capsicum annuum L. +
Pausinystalia yohimbe Pierre ex Beille 2 		1 [65]
Capsicum annuum L. +
Camellia sinensis L. Kuntze (green tea)		 1 [53]
Caralluma adscendens var. fimbriata (Wall.) Gravely & Mayur. 1 [66]
Carum carvi L. 1 [15]
Crocus sativus L. 1 [67]
Crocus sativus L. +
Citrus paradisi Macfad		 1 [68]
Eriodictyon californicum (Hook. & Arn.) Decne. 1 [69]
Gentiana lutea L. 1 [70]
Hibiscus sabdariffa L. +
Aloysia citriodora Palau (syn. Lippia citriodora) 		1 [71]
Ilex paraguariensis A. St.-Hil. (yerba mate) 1 [28]
Phaseolus vulgaris L. +
Cynara scolymus L.		 1 [72]
Salacia chinensis L. 1 [73]
Sphaeranthus indicus L. +
Garcinia mangostana L.		 1 [74]
Theobroma cacao L. 1 [75]
Vitis vinifera L. 1 [76]

1 Accepted scientific names from www.theplantlist.org. For exact composition, see Table S4 (Supplementary Materials). 2 Yet unresolved in the plant list (www.theplantlist.org).