Gestational Diabetes (GDM)
Gestational Diabetes Mellitus (GDM) is a condition that develops during pregnancy and can impact blood sugar regulation.
Risk factors for GDM include a high BMI, maternal age above 30, a history of Polycystic Ovary Syndrome (PCOS), having had a large baby in a previous pregnancy, a family history of Diabetes, and belonging to certain ethnic groups.
Blood Glucose Levels
- Fasting: Below 5.3 mmol/L
- One hour after meals: Below 7.8 mmol/L
Diet and Lifestyle Changes
- A well-balanced diet with the right mix of macronutrients is essential for managing blood sugar levels.
- Adjusting food choices and portion sizes can help control blood glucose levels.
- Engaging in physical activity after meals can aid in lowering blood sugar levels.
Proteins play a key role in blood sugar control as they have little to no effect on blood sugar levels. Including lean sources of protein such as chicken, turkey, fish, tofu, and legumes in your diet can help stabilize blood sugar levels.
Fats are also important for blood sugar control as they help slow down the absorption of carbohydrates. Including healthy fats from sources like avocados, nuts, seeds, and olive oil can help prevent spikes in blood sugar levels.
Tips for Eating for Blood Glucose Control
- Choose whole grains over refined grains to help stabilize blood sugar levels.
- Include plenty of fiber-rich foods like vegetables, fruits, legumes, and whole grains in your diet to slow down the absorption of carbohydrates.
- Monitor your portion sizes to avoid consuming too many carbohydrates at once, which can lead to spikes in blood sugar levels.
- Combine carbohydrates with protein and healthy fats to help balance blood sugar levels and provide sustained energy.
- Stay hydrated and limit sugary drinks and beverages that can cause blood sugar spikes.
Glycemic Index Foods
Foods with a low Glycemic Index (GI) are preferable for slower glucose absorption and better blood sugar control.
Low GI Foods
- Oats, wholegrain bread, brown rice, legumes, etc.
High GI Foods
- Cereals, white bread, sugary snacks, soft drinks, etc.
It’s important to choose foods with a low GI to help maintain steady blood sugar levels throughout the day. Some other examples of low GI foods include quinoa, sweet potatoes, and most fruits. High GI foods can cause spikes in blood sugar levels, leading to energy crashes and potential long-term health issues like diabetes. By focusing on low GI foods, you can better manage your energy levels and overall health.
Key Principles for Carbs
- Monitor portion sizes and opt for high-fiber, low GI choices.
- Avoid added sugars and pair carbohydrates with proteins and fats for improved control.
Limit carbohydrate intake per meal and adjust based on blood sugar monitoring.
Carb Counting Guidance
- Check food labels, research online, or use resources for carbohydrate content.
- Include a variety of whole grains, fruits, vegetables, and legumes in your diet for a balanced carbohydrate intake.
- Be mindful of hidden sources of carbohydrates such as sauces, dressings, and condiments.
- Experiment with different cooking methods like steaming, roasting, or grilling to enhance the flavor of carb-rich foods without adding extra sugars or fats.
Fruits for Snacking
- Aim for moderate fruit consumption paired with protein sources to regulate glucose levels.
- Some great fruit options for snacking include apples, bananas, berries, and oranges.
- Pair your fruit with nuts, yogurt, or cheese for a balanced snack that will keep you satisfied for longer.
- Choose whole fruits over fruit juices, as they contain more fiber and have a lower impact on blood sugar levels.
Protein Sources
Include sources of lean proteins such as meats, eggs, fish, tofu, beans, and nuts for growth and blood sugar control.
- Choose lean protein options, vary your choices, and control portion sizes.
In addition, moderate intake of healthy fats is beneficial for energy but should be consumed in moderation.
Unhealthy Fats
- Fatty meats, processed foods, high-fat dairy products.
Healthy Fats
- Sources of Omega-3 like fish and oils.
Balancing Fats
- Sources of Omega-6 like seeds, nuts, and oily fish.
Fat Moderation
Monitor fat intake to prevent excess calories and weight gain, especially during pregnancy.
- Be mindful of added fats in cooking.
- Replace saturated fats with monounsaturated and polyunsaturated fats for better health.
- Avoid trans fats found in processed and fried foods.
Meal pattern
Consume regular meals to manage blood sugar levels. Avoid late-night carbohydrates at dinner for stable fasting blood sugar. Opt for low-carb snacks after dinner.
- Whole grain toast with nut butter, eggs, cheese, ham, or beans with reduced sugar.
- Oats with unsweetened milk, Greek yogurt, or Skyr.
- Small chapatti with dhal or curry.
- Seeded toast with scrambled eggs, avocado, smoked salmon, or grilled bacon.
- Small wrap with chicken, fish, or roasted veggies.
Ideas for mid-morning snacks:
- Ryvita with peanut butter.
- Portion of fruit.
- Plain yogurt or nuts.
Ideas for mid-afternoon snacks:
- Cup of unsweetened tea.
- Small fruit.
- Plain yogurt or nuts.
- Bowl of meat or vegetable soup with a bread roll.
- Sandwich with salad and protein.
- Baked potato with protein and salad or omelette.
- Cooked rice with meat or vegetable curries.
- Chapattis with curries and salad.
- Chicken, veggie, and noodle broth.
- Small fruit or nuts.
- Sugar-free drink or yogurt.
- Babybel and nuts.
- Small fruit or nuts.
- Sugar-free drink or snack.
- Veggie sticks with hummus.
- Roast meat or fish with veggies and potatoes.
- Lasagna, chili, or stew with salad.
- Stir-fry with lots of veggies and less rice or noodles.
Snacks with around 10 – 15g carbs per portion:
Low carb snacks:
Meat, chicken, fish.
e.g., sliced ham or cooked.
Cheese strings or Babybel.
Food safety in pregnancy
Avoid certain foods that can be harmful to your baby during pregnancy. Consult reliable sources for more information.
It is important to avoid raw or undercooked meat, poultry, seafood, and eggs during pregnancy as they may contain harmful bacteria such as listeria, salmonella, and E. coli. It is also recommended to avoid unpasteurized dairy products, deli meats, and fish high in mercury.
Make sure to wash fruits and vegetables thoroughly before consumption to remove any potential contamination. It is also important to practice good food hygiene habits, such as washing hands before preparing meals and storing food properly to prevent foodborne illnesses.
If you have any concerns about food safety during pregnancy, it is best to consult your healthcare provider for personalized advice and guidance.
Exercise in pregnancy
- Regular physical activity during pregnancy can reduce stress, improve sleep, and help manage blood sugar levels.
- Stay active after eating to enhance insulin function and control blood glucose.
- Refer to specific guides for exercise during pregnancy for more details.
In summary
- Eat three regular meals daily.
- Snack on 10 – 15g of carbs or carb-free options between meals.
- Avoid large meals and evenly distribute carb servings throughout the day.
- Do not skip meals to prevent overeating later on.
- Opt for protein-rich meals with lean meats, fish, chicken, or alternatives.
- Stay hydrated with 2 liters of sugar-free fluids daily.
- Choose low GI toast toppings over sugary ones.
- Include 30 minutes of daily exercise during pregnancy.
Post delivery care
After delivery, focus on returning to normal blood sugar levels. Take a blood glucose test 6 weeks post-delivery to confirm remission. Maintain healthy habits to reduce the risk of diabetes in the future.
Essential Nutrition Guide for Gestational Diabetes: Learn How to Eat Right for Optimal Health During Pregnancy.
Foods to Eat:
- Low glycemic index carbohydrates such as whole grains, fruits, and vegetables.
- Lean protein sources like chicken, fish, and tofu.
- Healthy fats from sources like avocados, nuts, and olive oil.
- Fiber-rich foods such as beans, lentils, and nuts.
- Dairy products like yogurt and milk for calcium intake.
Foods to Avoid:
- Sugary treats like candy, cookies, and ice cream.
- Processed foods high in added sugars and unhealthy fats.
- White bread, rice, and pasta that can cause spikes in blood sugar levels.
- Fried foods that are high in unhealthy fats.
- Sugary beverages like soda and fruit juice.
Remember to consult with your healthcare provider or a registered dietitian for personalized nutrition advice during gestational diabetes.
Food product categories
Explore 12 food categories crucial for a healthy pregnancy, especially when managing gestational diabetes. Discover low and high glycemic index options for better control.
Breakdown of food products according to IG
Check the table showing recommended and not recommended foods for gestational diabetes based on glycemic index levels to make easy substitutions.
LOW AND MEDIUM GI
Incorporate wheat bread, pasta, milk, cottage cheese in your diet. Avoid high GI foods like white rice, corn flakes, honey, and certain meats.
What cereal products?
Bread, grains, dairy, proteins, fats, and oils are essential food groups for managing gestational diabetes. Make wise choices from each group to maintain steady blood sugar levels. Here are some suggestions:
Bread and Grains: Opt for rye or rye-wheat bread with seeds. Choose hearty grains like buckwheat or barley.
Dairy Products: Stick to natural yogurts and cheeses without added sugars.
Meats and Fish: Choose lean cuts and healthy cooking methods.
Eggs: Any form of eggs is a great breakfast choice for stable blood sugar levels.
Vegetables: Include various cooked or raw veggies for their fiber content.
Fruits: Limit high-sugar fruits and pair them with other foods.
Fats and Oils: Don’t skip fats; they can slow down sugar absorption.
Drinks: Opt for unsweetened beverages instead of sugary ones.
By making informed decisions within these food groups and following the recommendations, you can effectively manage gestational diabetes. All the best!
Author: Milena Kuzaka – Personal Insulin Pump Trainer, Diabetes Educator, Dietitian at the Diabetes Clinic, Institute of Mother and Child