- University of Edinburgh. “Eating Licorice In Pregnancy May Affect A Child’s IQ And Behavior.” ScienceDaily. October 2009.
- Katri Räikkönen et al, Maternal Licorice Consumption and Detrimental Cognitive and Psychiatric Outcomes in Children, American Journal of Epidemiology, Volume 170, Issue 9, Nov 2009, Pages 1137–1146
- Glycyrrhiza glabra, an overview, Science Direct (online resource)
- De Klerk, Gerty J., et al. “Lesson of the Week: Hypokalaemia and Hypertension Associated with Use of Liquorice Flavoured Chewing Gum.” British Medical Journal, vol. 314, no. 7082, 1997, pp. 731–732
- M. Attokaran, Natural Food Flavors and Colorants, Blackwell 2011, ISBN: 978-0-813-82110-8
- M. R. Lee, Liquorice: The journey of the sweet root from Mesopotamia to England, Journal of the Royal College of Physicians Edinburgh2018; 48: 378-82
- “Licorice the Versatile.” Scientific American, vol. 141, no. 3, 1929, pp. 208–210
See full list of Individual Species References.