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Diabetes & Pregnancy: top tips for optimising glucose levels

Patient information A-Z

Trying to achieve the best possible glucose levels for pregnancy can feel challenging at times.There are certain actions that make a big difference to glucose levels and they are listed below.

It can be helpful to tick off any that you feel are going well, and then consider any others to focus on.

Eating the right type of carbohydrate

Image of different types of carbohydrates

Different carbohydrates can have very different effects on blood glucose levels after eating. Choosing the right type of carbohydrate can make all the difference to keeping the 1 hour post meal glucose in target. Carbohydrates that are unrefined, high in fibre with a low glycaemic index (below 55) create a slower and lower rise in glucose levels after eating, making it easier to keep below the healthy pregnancy range of 7.8 mmol/l . The table attached lists the foods that most women find do not work well in pregnancy with better alternatives.

Eating the right amount of carbohydrate

Image of different food groups split into sections

It is important to eat enough carbohydrate to provide enough energy and nutrition to support a healthy pregnancy. However, too much carbohydrate makes it impossible to achieve the post meal glucose targets. Carbohydrate is better tolerated when eaten in smaller quantities, spread over the day. It is helpful to eat small amounts at meals and include carbohydrate containing snacks between breakfast and lunch, and lunch and evening meal.

You may find the carbohydrate amounts below a good place to start.

Breakfast: 15-20g carbohydrate (for example 1 slice of bread topped with poached eggs)

Lunch and dinner: about 40-50g total carbohydrate (for example about 4 tablespoons cooked rice / pasta or 4 egg size potatoes with protein food and vegetables)

Mid-meal snacks: 5-15g carbohydrate (snack list shows ideas)

Getting breakfast right

Image of scrambled eggs on toast

Helpful breakfast choices:

  • 1 slice whole-wheat toast with a topping e.g. poached or scrambled eggs / mushrooms / tomato / cheese / ham / bacon / avocado.
  • Or 1 small pot or portion yoghurt (less than 15g total carbohydrate) with one chopped portion of fruit or a cup of berries (top with nuts or seeds)
  • Or 25g Jumbo porridge (whole oats) oats mixed raw with crème fraiche and 1 cup berries (top with nuts)
  • Or 40g Jumbo porridge (whole oats) oats cooked with water and single cream added to taste

This breakfast option can be repeated 90 to 120 minutes later or you can have a carbohydrate snack.

Being active immediately after eating

Illustration of three people standing

Being active for 15-20 minutes immediately after eating can make your post meal glucose level as much as 2mmol/L lower, and help achieve the post meal glucose range. This can be going for a walk, or being active around the house or workplace. Avoid being inactive immediately after eating.

Bulking up meals with more protein and vegetables or salad

Image of steak on a fork and broccoli on another fork

Eating more protein foods such as meat, fish, chicken, cheese, eggs, tofu, Quorn, pulses and filling up on vegetables will help you feel less hungry when eating smaller carbohydrate portions. These foods also limit the post meal glucose rise and so help achieve the post meal glucose range.

Avoid eating carbohydrate late in the evening

Eating your evening meal before 7.30 pm and keeping evening snacks carbohydrate free can make all the difference to achieving overnight and fasting glucose range.

Ways to consider carbohydrate portions

Front cover of the Carbs and Cals: Carb and Calorie Counter book

These tools can be helpful when regulating carbohydrate portions to keep your post meal glucose levels in range:

  • Carbs & Cals book or app (Chris Cheyette & Yello Balolia, Publisher - Chello)
  • MyFitnessPal App
  • Food Labels: use the “total carbohydrate” amount when working out how much carbohydrate is in the food.
  • Restaurant’s web sites: Nutritional information

Keep a food diary

Keeping a food diary can help you learn what meals and carbohydrate choices are working well for you to achieve the post meal glucose range. It can also help you see which choices are best avoided or need alternatives.

Snacks

Making snack choice healthy, high in fibre and avoiding refined forms of carbohydrate really helps keep glucose levels stable between meals.

Good types of carbohydrate snacks are: fruit, yogurt, wholewheat crackers & oatcakes with protein toppings. Additional lists are available from clinic.

□ If you are taking diabetes medications

Image of an insulin pen with a timer set to 15 minutes
  • Metformin

This is best tolerated with food (ideally take with your first mouthful of food or immediately after eating); a maximum of 1g twice daily (2g total per day) can be taken. To reduce potential gastric side effects it is best to increase your doses slowly as guided by your diabetes team.

  • Meal time insulin

If you are taking meal time insulin this is best taken before you eat; ideally 15-20 minutes.

  • Before bed insulin

It is helpful to take this injection at a similar time each evening.

Keep in touch

It is likely that your blood glucose levels will change as your pregnancy progresses. If you notice that you get 3 readings out of target at the same time of day and within a week, please sync your meter to the Glooko App and send us an email, so we can support you.

Email contact details:

Image of a pregnantt person standing in 10 different positions

Carbohydrate Choices

Food
Type
Refined
carbohydrates to avoid
Alternatives
to replace with
Bread Refined
carbohydrates to avoid
All white breads including rolls, pitta, crumpet, croissant, panini, wraps,
bagels,  
Baguette 
Naan / Paratha / chapati / roti (made with white flour) 
 
Bought sandwiches often have higher sugar content
Alternatives
to replace with
Wholewheat, wholegrain, wholemeal varieties of breads 
Sourdough bread 
Ryebread 
Paratha / chapati / roti / puri / thepla if made with wholemeal flour 
Freezing bread first lowers impact on glucose
Rice / Pasta / Grains / Pulses Refined
carbohydrates to avoid
Short grain and sticky rice  
 
Ground foods such as ground rice / semolina / tapioca / cornmeal / tapioca: idli, fufu, pap, gari, banku, pounded yam 
Rice flour noodles: string hoppers 
Foods made with ground lentils: dosa, papadum, vada, idli
Alternatives
to replace with
Basmati rice (rinse well before cooking) 
All pasta 
(Cooling rice, pasta and potato after cooking and then eating cold or re-heating fully will lower the impact on glucose) 
Bulgar wheat / couscous / quinoa 
Peas, beans, lentils
Potatoes
/ root vegetables
Refined
carbohydrates to avoid
Processed potato products: 
Oven chips / French fries / smiley faces / waffles / croquettes / frozen roast potatoes / instant potatoes 
Roasted parsnip may not work well 
Foods made with ground yam / plantain / cassava: gari, eba, pounded yam, amala,
banku, vada
Alternatives
to replace with
New and boiled potatoes are best 
Homemade wedges / chips / roast potatoes  
Small baked potato / mashed potato may be tolerated 
Sweet potato / yam / plantain and cassava if boiled, steamed or roast
White
flour-based foods
Refined
carbohydrates to avoid
Cakes, rusk 
Biscuits 
Low fibre crackers and crispbreads e.g. cream crackers, water biscuits  Pastry – pies, pasties, quiche, sausage rolls, spring roll, samosa, patties 
Yorkshire pudding, dumplings 
Breaded and battered foods – fish fingers, battered/breaded fish
Alternatives
to replace with
Biscuits:
plain wheatmeal digestives, plain hobnobs, Hovis, Nairn oat biscuits (one or
two) 
High fibre crackers and crispbread: oatcakes, Ryvita
Fruit Refined
carbohydrates to avoid
All melon varieties, pineapple, mango 
Dried fruit including dates and prunes 
Tinned fruit in syrup
Alternatives
to replace with
Apple, pear, orange, satsuma (1-2), plums (2), kiwi (2), small banana, grapes
(10-12), peach, nectarine 
Berry fruits have the lowest impact on glucose: strawberry, raspberry, blueberry, blackberry. Make the most of when in season and buy frozen when
not.  
Tinned fruit in natural juice – wash away the juice
Yogurt
and dairy
Refined
carbohydrates to avoid
Chocolate mousse 
Chocolate / jam cornered or layered yogurt 
Most ice creams 
Sorbet 
Custard 
Condensed, evaporated milk 
Kheer
Alternatives
to replace with
Yogurt: natural, Greek, fruit, Skyr or Scandinavian style   fromage frais 
(Aim for less than 15g total carbohydrate per portion or pot) 
Cream and crème fraiche are carbohydrate free
Snacks Refined
carbohydrates to avoid
Sweets 
Mints 
Chocolate 
Processed
savoury snacks: Hula Hoops, Skips, Quavers, Pringles, Baked crisps 
Puff
puff, mandazi, baklava, Shakar Para, barfi,
jalebi, Ladoo
Alternatives
to replace with
4 small squares of 70% cocoa solids chocolate 
Sugar free sweets or mints 
Natural or salted popcorn 
Savoury snacks: sliced potato crisps such as Walkers or kettle  
Vegetable crisps
Drinks Refined
carbohydrates to avoid
Fruit juice 
Vegetable juice  
Smoothies (even if home-made) 
Milk shake 
Hot chocolate 
Full sugar squash and fizzy drinks 
Sugar containing flavoured waters 
Coffees made with sugary syrups
Alternatives
to replace with
Water
Sugar free squash and sugar free fizzy drinks 
Tea and coffee made with a small amount of milk 
Fruit or mint tea 
Milky coffees (latte, flat white, cappuccino), glass milk – keep to between meals rather than with meals due to carbohydrate content 
Sugar free flavouring syrups can be used
Sugar
and preserves
Refined
carbohydrates to avoid
Sugar, glucose, maltose, dextrose, treacle and syrup 
Jaggery Jam & marmalade (including “diabetic” varieties), honey, lemon curd, maple syrup, chocolate spread
Alternatives
to replace with
Artificial sweeteners if a variety are used and in small quantities.  
Examples: Splenda, Sweetex, Hermesetas, Nutrasweet, Candarel, Stevia 
Nut butters such as peanut butter (without added sugar) 
Marmite, Vegemite
Ready meals, packets, jars and take aways Refined
carbohydrates to avoid
Some ready meals and sauces contain significant amounts of sugar, for example sweet and sour sauces, jar or packet Chinese sauces. 
Chinese takeaway, korma. 
Baked beans, tinned spaghetti
Alternatives
to replace with
It can be helpful to keep some quick meals / foods handy for busy days: 
Sachets ready cooked basmati rice, quinoa, lentils 
Fresh pasta with sauce 
Pasta based ready meals can work well for glucose 
Frozen vegetables 
Tomato based curries 
Reduced sugar baked beans (drain off sauce)

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