In recent years, the regulation of carbohydrate intake has become regarded as essential to achieve a balanced diet, with a range of health benefits attributed to low-carbohydrate diets. However, much of the advice on reduced carbohydrate intake does not reflect government-led dietary guidelines. As a result of this conflicting information, patients requiring assistance with weight management or glycaemic control may become confused about the appropriate carbohydrate intake, or be encouraged to experiment with ‘fad’ diets. As front-line healthcare professionals, nurses are in a prime position to advise patients on carbohydrate intake, as well as signposting them to evidence-based dietary resources. This article outlines the constituents of dietary carbohydrate, considers the health benefits of carbohydrates, and explains their importance as part of a healthy and balanced diet.