Food Library

Grains, bread and cereals with gestational diabetes: reading the carbohydrate

Bread, rice, pasta, oats and breakfast cereals are mostly carbohydrate. In this library the figures run from under 20 g per 100 g for some cooked grains to more than 80 g for puffed rice and several flours, depending on the food and on whether it is listed cooked or dry. So the useful questions are practical: how much carbohydrate is in your portion, how much fibre comes with it, and what the label is telling you. This guide works through those, then covers two food-safety habits that are specific to grains: cooling cooked rice quickly and not eating raw flour or dough. Whole grains, breads and flours each have a page of their own, and every food is listed further down.

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154 foodsLast reviewed: September 11, 2026Sources

Grains & Cereal: foods and gestational diabetes

How these were chosen

The breads and grains with the most fibre for their carbohydrate, plain oats as the breakfast benchmark, and plain flour for its safety note. Slippery elm powder and Job's tears are marked avoid here, so neither is featured.

What to look for

  1. Check whether the figure is for the grain cooked or dry

    Grains take up water as they cook, so the same grain carries a very different figure per 100 g depending on its state. USDA lists uncooked quinoa at about 64 g of carbohydrate per 100 g and cooked quinoa at 21 g; white rice goes from about 80 g to 28 g, and dry pasta from 75 g to 31 g. This library mixes the two. Quinoa, brown rice, bulgur and most other whole grains are listed cooked, while oats, millet, teff, flours and breakfast cereals are listed dry. Weigh a portion in the same state as the figure you use.[1]

  2. Wholegrain adds fibre more than it cuts carbohydrate

    The NHS notes that white bread has less fibre than wholegrain, wholemeal or brown bread, and suggests wholewheat pasta, bulgur wheat and brown rice as ways to eat more fibre, towards its guideline of 30 g a day for adults. The carbohydrate moves far less than the fibre does: USDA puts cooked brown rice at about 26 g per 100 g against 28 g for white, with 1.6 g of fibre against 0.4 g. The bread comparison below shows the same pattern.[1] [2] [3]

  3. GI shifts with cooking and processing; the amount shifts more

    Diabetes UK explains that a food's GI can change with how it is cooked and processed, and that protein, fat and fibre slow the digestion of carbohydrate. It adds that GI takes no account of portion size, and that the amount of carbohydrate has a bigger effect on blood sugar than GI alone. Its lower-GI swaps include brown or basmati rice for white, and granary, pumpernickel or rye bread. That advice is written for diabetes generally rather than for pregnancy.[4]

  4. Breakfast cereals: read the sugar per 100 g

    The NHS notes that many breakfast cereals are refined and can be high in added sugar and salt, and suggests checking the label. On a UK label, more than 22.5 g of total sugars per 100 g counts as high, and 5 g or less as low. In this library, plain oats carry about 1 g of sugar per 100 g, while granola carries about 25 g, and bran flakes and muesli 18 to 20 g, despite their fibre.[2] [5]

  5. What fibre and sugar claims on the pack mean

    Under EU rules, 'source of fibre' means at least 3 g of fibre per 100 g, 'high fibre' at least 6 g and 'low sugars' no more than 5 g. They are thresholds, not rankings, so compare the nutrition panels.[6]

  6. Cool cooked rice quickly, and don't eat raw flour or dough

    Because spores in rice can survive cooking, the NHS advises serving rice and grains as soon as they are cooked, or cooling them within an hour and keeping them in the fridge, and reheating rice only once, to 70°C for 2 minutes. The FDA treats flour as a raw food that can carry salmonella and E. coli, and advises never eating or tasting raw flour, dough or batter.[2] [7]

Side by side

Bread

Per 100 g
FoodCarbsFiberProteinBlood sugar impact
White Bread (Soft, Crust Removed)
50.6 g2.4 g9.4 ghigh
Sourdough Bread (low sodium)
49.5 g3.2 g9.1 gmedium
Rye Bread (without seeds)
48.3 g6 g8.5 gmedium
Whole Wheat Bread (Low Sodium)
45 g7 g13 gmedium
Multigrain Bread (low sodium)
45.5 g7.2 g10.1 gmedium
Spelt Bread (low sodium)
48 g8 g11 gmedium

The carbohydrate stays within about 6 g per 100 g across these loaves; the fibre runs from about 2 g to 8 g.

Cooked grains

Per 100 g
FoodCarbsFiberProteinBlood sugar impact
Bulgur
18.6 g4.5 g3.1 glow
Buckwheat
19.9 g2.7 g3.4 glow
Quinoa
21.3 g2.8 g4.4 glow
Brown Rice
25.6 g1.6 g2.7 gmedium
Whole Grain Pasta
26.5 g3.7 g5.3 glow
Barley Groats
28.2 g3.8 g2.3 glow

All figures are for the cooked grain. Bulgur carries the least carbohydrate and the most fibre of these.

Breakfast cereals

Per 100 g
FoodCarbsSugarsFiberBlood sugar impact
Oats
66.3 g1.1 g10.6 glow
Wheat Flakes
70.1 g0.8 g12.5 gmedium
Cornflakes
84.1 g9.1 g2.9 ghigh
Muesli
60.5 g18.4 g9.2 gmedium
Bran flakes
75.5 g19.8 g15.1 ghigh
Granola
60.5 g25.3 g9.2 ghigh

All figures are dry. Plain oats and wheat flakes carry about 1 g of sugar per 100 g; granola carries the most.

Flours

Per 100 g
FoodCarbsFiberProteinBlood sugar impact
All-purpose flour
76.3 g2.7 g10.3 ghigh
Rye Flour
75.9 g22.6 g15 glow
Oat Flour
68.2 g10.1 g14.7 gmedium
Chickpea Flour
57.8 g10.8 g22.4 glow
Almond Flour
21.6 g12.5 g21.2 glow
Coconut Flour
59.3 g38.5 g19.3 glow

Nut and legume flours carry less carbohydrate and more protein than grain flours.

Figures from each food's entry in this library. Open a food for its full profile and portion notes.

All foods in Grains & Cereal

154 foods in this category, each rated for glycemic impact and blood sugar effect.

Bread and Baked Goods

View all (53) →

Flour and Cereals

View all (62) →

Whole Grains

View all (33) →

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Common questions

Can I still eat bread with gestational diabetes?

Yes. The loaves compared above carry about 45 to 51 g of carbohydrate per 100 g, and Diabetes UK notes that the amount of carbohydrate affects blood sugar more than GI does. The NHS points to wholegrain, wholemeal and brown bread for their fibre. Your dietitian or diabetes team can say how much fits your plan.[2] [4]

Is brown rice lower in carbs than white rice?

Only slightly. USDA lists cooked brown rice at about 26 g of carbohydrate per 100 g and cooked white rice at 28 g. The bigger difference is fibre, 1.6 g against 0.4 g. Diabetes UK lists brown and basmati rice among its lower-GI swaps for white rice, while noting that the amount on the plate matters more.[1] [4]

Should I weigh rice and pasta cooked or dry?

Either, as long as the figure you use is for the same state. By USDA's figures, dry pasta carries about 75 g of carbohydrate per 100 g and cooked pasta about 31 g, so using the dry figure for a cooked portion would count more than twice the carbohydrate actually on the plate.[1]

Is leftover rice safe to eat in pregnancy?

Yes, if it was handled the way the NHS advises for everyone: cooled within an hour of cooking, kept in the fridge, and reheated only once, until it reaches 70°C for 2 minutes. The risk is rice left at room temperature, where spores that survive cooking can produce toxins.[2]

Should I avoid rice because of arsenic?

The FDA's advice on arsenic in food is to eat a variety of foods across and within the food groups, grains included, rather than rely on any one of them. It notes that cooking rice in plenty of water lowers its arsenic, though it also washes out the vitamins added to enriched rice.[8]

Keep reading

Important Safety Information

Every pregnancy is different, and gestational diabetes is managed differently depending on your readings, your medication and how far along you are. The ratings and portions on this page are general information — not a diagnosis, a treatment plan or a medical device — and they cannot see your results.

Low blood sugar:
If you take insulin or diabetes medication, eating less carbohydrate than your team planned for can push your blood sugar too low. Treat a reading below 70 mg/dL (3.9 mmol/L), or symptoms such as shaking, sweating, confusion or a racing heart, with fast-acting carbohydrate immediately and retest after 15 minutes. Never use this page as a reason to skip or shrink a meal you were told to eat.
Carbohydrate and ketones:
Cutting carbohydrate hard to force a number down is not safe in pregnancy — it can produce ketones. Published guidance sets a minimum of 175 g of carbohydrate per day in pregnancy. Readings that stay above target for several days need your care team, not a smaller portion.
Medication and insulin:
The portions here are generic and know nothing about your insulin doses, your metformin, or the steroids given to mature your baby's lungs — all of which change how a meal affects you. Never adjust a dose or a mealtime based on this page.
Food safety in pregnancy:
Blood sugar is not the only thing that makes a food suitable while you are pregnant. Some foods with excellent glycemic numbers still carry mercury, vitamin A, listeria or alcohol risks, and those are judged separately from the ratings shown here. Check your national pregnancy food-safety guidance before adding an unfamiliar food.
What these ratings can and cannot tell you:
Glycemic index values, impact ratings and maximum servings are population averages taken from published tables. Two people eating the same food can get very different readings, so your own meter is the only measurement that describes you. Nutrition figures are indicative per 100 g and vary with brand, ripeness and preparation.

Contact your care team the same day if: your readings stay above target for several days; you have a reading below 54 mg/dL (3.0 mmol/L) or needed someone else's help to treat a low; you test positive for ketones; or your baby is moving less than usual. Seek emergency care for confusion, fainting, repeated vomiting, or a low you cannot bring back up.

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