Nasturtium (Tropaeolum majus L.) sub-chronic consumption on insulin resistance and lipid profile in prediabetic subjects. A pilot study oleh Yudy V. Barrantes-Martínez, Martha Liévano, Álvaro J. Ruiz, Isabel Cuéllar- Rios, Diana Paola Valencia, Melanie Wiesner-Reinhold, Monika Schreiner, Diego Ballesteros-Vivas, Valentina Guzmán-Pérez