A master cleanse is a type of detox diet that typically lasts for 10 to 14 days. It involves consuming a special lemonade made from lemons, maple syrup, cayenne pepper, and water. The goal is to eliminate toxins from the body and promote weight loss by abstaining from solid foods during the cleanse. Proponents of the master cleanse believe it can improve digestion and boost energy levels. However, it is important to note that there is limited scientific evidence supporting these claims. Consulting a healthcare professional before starting any detox diet is recommended to ensure safety and effectiveness.