The study aimed to investigate the scientific evidence on the use of herbal medicines “Camellia sinensis”, “Citrus aurantium” and “Carthamus tinctorius” to help weight loss. In the development of this research we carried out systematic bibliographical studies in databases PubMed, ScienceDirect and Scielo between the years 2000-2014. According to the studies revised on the Camellia sinensis green tea extract has...