In this video we introduce the following concepts:

• The difference between food and medicine / primary and secondary metabolites
• You feel full when you have had enough food. This is not true for secondary metabolites (see also video 7)
• How potent essential oils and dried herbs are compared with fresh herbs
• How important quality is e.g. the drying process will concentrate any pesticides present
• Numerous examples of how animals self-medicate in the wild
• How & why Zoopharmacognosy is a behavioural science
• Huffman's criteria for self-medication