 Gallic acid is a natural phenolic compound with various health-promoting effects. It has been shown to possess antioxidant, anti-inflammatory and antineoplastic properties as well as therapeutic benefits in gastrointestinal, neuropsychological, metabolic and cardiovascular disorders. However, current evidence is limited to cellular and animal studies and further research is necessary to determine its safety and efficacy in humans. This article was authored by Niloufar Kakashani, Fateh Mefarzieh, Mariam Fatuhi and others.