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Eating Well with Gestational Diabetes (GDM)

Eating Well with Gestational Diabetes (GDM)

Managing your diet is the first step in maintaining healthy blood glucose levels for you and your baby. A healthy GDM diet is simply a balanced, nutritious way of eating that focuses on choosing the right types of carbohydrates and spacing them out throughout the day. 

Key Eating Principles

  • Eat Regularly: Aim for three main meals and two to three small snacks daily, spaced approximately 2.5 to 3 hours apart. Spreading carbohydrate intake throughout the day helps prevent blood sugar spikes.
  • Choose “Slow-Release” Carbohydrates: Opt for wholegrain or “Low GI” varieties like wholegrain bread, basmati rice, legumes and pulses.
  • Balance Your Plate: At each meal, include a source of protein (meat, fish, cheese, eggs, or pulses), plenty of vegetables or salad, and a controlled portion of starchy carbohydrates.
  • Watch Fruit Intake: Stick to one portion of fruit at a time and avoid fruit at breakfast, when blood sugar is harder to manage. Avoid fruit juices and smoothies, as they raise blood glucose quickly.
  • Limit Added Sugars: Stay away from sugary drinks, sweets, cakes, and biscuits. Use sugar-free or “no added sugar” alternatives where possible. 
  • Don’t Skip Meals: Long gaps between eating can cause your blood sugar to drop and then spike at the next meal.
  • Stay Active: A short walk for 10–15 minutes after meals can significantly help lower blood glucose.

Support & Classes: If you are newly diagnosed, attending the Lifestyle Class facilitated by our dietitian is essential to help you manage your diet effectively. 

Frequently asked questions

Yes. Blood sugar levels are naturally higher and harder to manage in the morning due to pregnancy hormones. It is best to avoid fruit and fruit yoghurts at breakfast and save your fruit portions for later in the day.

Small amounts of artificial sweeteners (like Splenda or Stevia) are generally considered safe alternatives to sugar. However, it is better to choose water or sugar-free squash over “diet” fizzy drinks for overall health.

You should not go hungry. If you need a snack, choose “safe” options like raw vegetables with hummus, a small handful of nuts, or a piece of cheese, which have little impact on blood sugar.

No. “Diabetic” chocolates, jams, and biscuits are not recommended. They are often expensive, high in fat, and contain sweeteners that can cause stomach upset or bloating.

Many women find that a small, balanced supper (like a slice of wholegrain toast with a little cheese) within 30 minutes of bedtime helps stabilize blood sugar levels overnight and can improve “fasting” readings the next morning.

Managing GDM is about consistency, not perfection. If you want a treat, try a small square of dark chocolate with a few nuts to slow down the sugar absorption, rather than eating sugary snacks on their own.

Exercise helps your body use insulin more effectively. A simple 10–15 minute walk immediately after your main meals can significantly lower your post-meal blood sugar readings

Join our Virtual GDM Support Talks

Providing the basics is a great start, but managing GDM is personal. The  virtual sessions go beyond the diet sheet to give you practical tools for your pregnancy.

In these sessions, we cover:

  • Personalised Portions: How to tailor carbohydrate “choices” to your specific needs.
  • Label Reading Workshops: Learn exactly what to look for when you’re shopping.
  • Overcoming Challenges: Dealing with morning sickness, cravings, and eating out while managing GDM.
  • Live Q&A: Get your specific questions answered in real-time.

If you have been diagnosed with GDM, your Diabetes Specialist Midwife will be in contact providing you with the date and time for the Virtual Group Education

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