Gestational diabetes is defined as glucose intolerance first detected in pregnancy (World Health Organization, 1999). Globally, and in the UK, the prevalence of gestational diabetes is increasing owing to multiple factors. Women with previous gestational diabetes are more likely to develop type 2 diabetes later in life. In recent years, several landmark studies have been performed with the intention of defining the most appropriate treatment for gestational diabetes. The aim of this article is to explore the available treatments for gestational diabetes in the UK, although the author acknowledges that treatment modalities vary throughout the UK and remain largely dependent upon the prescriber's experience within the context of what is determined to be accepted safe practice.