Mate tea (Ilex paraguariensis) improves glycemic and lipid profiles of type 2 diabetes and pre-diabetes individuals: a pilot study - Klein, G A; Stefanuto, A; Boaventura, B C; de Morais, E C; Cavalcante Lda, S; de Andrade, F; Wazlawik, E; Di Pietro, P F; Maraschin, M; da Silva, E L (J Am Coll Nutr, 2011)