What should you know about food for gestational diabetes?

Carbohydrate foods are broken down into glucose, so the type, portion and timing of carbohydrate can affect readings. Pregnancy hormones can also change how the body responds to insulin, which is why a meal that worked earlier may need adjusting later. A balanced plate can include non-starchy vegetables, a protein food, and a measured portion of a higher-fibre carbohydrate such as beans, whole grains or fruit. Water is a useful drink; sweetened drinks and frequent refined snacks can raise glucose quickly. Gestational diabetes is not caused by a single meal, and food planning is not about skipping nourishment.

Eat at the times recommended by your maternity team and avoid skipping meals unless they have told you to do so. Pair carbohydrate with protein or healthy fat, choose whole or less processed foods when practical, and use portions suited to your glucose targets. Keep a record of meals, readings and symptoms so patterns are easier to review. Do not start a restrictive diet, fast, or remove whole food groups without professional guidance in pregnancy. Your [Antenatal Care Package](/treatments/pregnancy-and-birth-care/antenatal-care-package/) can include ongoing review, and a [Glucose Tolerance Test](/treatments/pregnancy-and-birth-care/glucose-tolerance-test/) is used for assessment rather than home food decisions.

Contact your maternity team when readings repeatedly fall outside your agreed range, you cannot keep food or fluids down, or you are unsure how to adjust meals. Seek urgent help for severe weakness, confusion, fainting, breathing difficulty, severe abdominal pain, or reduced fetal movement according to your pregnancy team's instructions. Do not change prescribed insulin or other medicine solely because a meal reading is high. Your team may also use a [Growth Scan](/treatments/pregnancy-and-birth-care/growth-scan/) to monitor fetal growth when clinically indicated.

Ask: What glucose targets apply to me? How should I spread meals and snacks? Which foods count as carbohydrate? What should I do after a high reading? When will my plan or medicine be reviewed?