Book excerpt: The potential benefits of plants and plant extracts in the treatment and possible prevention of many leading health concerns are historically well known and are becoming more widely studied and recognized within the medical community. It is these studies that led to the first compilation of new research developments, identifying new extracts and uses for plants in disease prevention and treatment. This major comprehensive reference work contains contributions from more than 150 clinical and academic experts covering topics such as treatments of cancer and cardiovascular diseases, as well as historical plant use by indigenous people supported by recent scientific studies. Authors review the safety and efficacy of botanical treatments while idenifying the sources, historical supportive data and mechanisms of action for emerging treatments. Written by researchers currently carrying out identification and biomedical testing, this is the most up to date text on the latest research from all over the world. It is an essential resource for health care practitioners and herbalists, as well as researcher, students and professionals in botany and alternative medicine.