In this book, the authors gather and present current research on the myths and reality of low and high-fat diets. Topics include new insights into high-fat diets and metabolic disorders; cactus stems (opuntia spp.) as an anti-hyperlipidemic and cholesterol lowering aid; dietary fat and its impact on health; the efficacy and safety of low-fat diets in children; and lipid profiling in the mouse brain and liver after starvation and a high-fat diet.