Sweets, as we know, should be consumed in moderation. This is especially true of liquorice, made from an extract from the root of the liquorice plant (Glycyrrhiza glabra) and containing the chemical compound glycyrrhizin. Ingested in large quantities, glycyrrhizin can cause health problems such as elevated blood pressure, fluid retention in body tissues and muscle weakness. But in liquorice root are also substances beneficial to health. They can, for example, act as an expectorant, helping to get rid of phlegm when you have a cold or a cough. This is why liquorice extract is often found in her…