One area that is rarely looked into are poisonous plants. It is vital to your survival that you familiarize yourself with native plants and which ones can harm you. What you do not know can hurt you. These books are available at all sporting goods stores and are a valuable asset to any hiking or backpacking trip.
Many people like to gather plants and eat naturally while on the trail.
This practice is great if indeed you are sure of what your eating. Many plants look alike and it is easy to have a mix up and accidentally poison yourself. Treatments for internal poisoning are very simple. This should be done as quickly as possible after poisoning. You should then induce vomiting immediately after taking the fluids.