Food Library

Fruits and vegetables with gestational diabetes: where the carbohydrate is

Leafy and green vegetables carry only a few grams of carbohydrate per 100 g, while potatoes, plantain and other starchy roots carry several times that; fresh fruit sits in between, and dried fruit carries the most by weight. For blood sugar, then, fruits and vegetables aren't one group. Beans and lentils bring carbohydrate together with fibre and protein. So the useful question is less whether to eat them than which ones carry the carbohydrate in a meal. This guide sorts them that way, then covers the pregnancy food-safety points that are specific to produce: washing, sprouts, cut melon and seaweed. Each group has its own page, linked below, and the full list of foods is further down.

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280 foodsLast reviewed: September 11, 2026Sources

Fruits & Vegetables: foods and gestational diabetes

How these were chosen

One or two foods from each group that behaves differently in a meal: berries and an everyday fruit, a green vegetable and peas, potatoes as the starchy benchmark, and the beans and lentils with the most fibre. Cantaloupe is here for its preparation rule.

What to look for

  1. Potatoes and other starchy roots are the starch in the meal

    The NHS doesn't count potatoes, yams, cassava or plantain towards 5 A Day, because they're usually eaten in place of bread, rice or pasta. Their carbohydrate follows the same line: about 18 g per 100 g for potatoes and 32 g for plantain in this library, against under 7 g for broccoli, cauliflower or courgette. Sweet potato and parsnip carry as much or a little more, yet the NHS counts them as vegetables, because they're usually eaten alongside the starch rather than instead of it. The ADA's 2026 Standards treat the amount of carbohydrate as what counts for glucose, whichever vegetable it comes from.[1] [2]

  2. Whole fruit, dried fruit and juice are different portions

    Dried fruit has lost its water, so by weight it carries four to six times the carbohydrate of the fresh fruit in the table below: raisins about 79 g per 100 g against 18 g for grapes. The NHS counts 30 g of dried fruit as one portion, about the same as 80 g fresh. Juice is different again. The NHS limits juice and smoothies to 150 ml a day in total, and counts the sugar in them as free sugars, which the sugar in whole fruit is not.[1] [3]

  3. Glycemic index describes the food, not your portion

    Diabetes UK describes glycemic index as a ranking of how quickly a carbohydrate food raises blood sugar when eaten on its own, and points out that it ignores portion size, which can matter more. Ripeness, variety and cooking change it too. That's how watermelon rates high GI at under 8 g of carbohydrate per 100 g, while dried apricots have a low GI at over 60 g. Diabetes UK writes for diabetes in general, not for pregnancy.[4]

  4. Beans, lentils and chickpeas: carbohydrate with fibre and protein

    The ADA's 2026 Standards name legumes, with fruits and vegetables, among the whole foods recommended in pregnancy with diabetes, and give a reference intake of 28 g of fibre a day. Cooked and tinned beans and lentils carry about 19 to 26 g of carbohydrate per 100 g in this library, as much as potatoes or more, but with 6 to 9 g of fibre and 7 to 9 g of protein alongside. Edamame and soybeans carry less carbohydrate and more protein. The NHS counts beans and pulses towards 5 A Day only once, however many you eat.[1] [2]

  5. Wash produce, cook sprouts, keep cut melon cold

    The NHS advises washing fruit and vegetables thoroughly to remove soil, which can carry bacteria, keeping pre-cut fruit such as melon chilled and eating it by its use-by date, and cooking enoki mushrooms thoroughly. The FDA advises people at higher risk of food poisoning, pregnant women among them, to avoid raw or lightly cooked sprouts of any kind, and to scrub firm produce such as melons with a clean brush.[5] [6]

  6. Seaweed: a lot of iodine, and one to avoid

    Seaweed can carry a lot of iodine, and the amount varies. The British Dietetic Association advises against eating brown seaweed such as kelp more than once a week, especially in pregnancy, and notes that nori may carry less. Hijiki is a separate case: Canada's food agency advises avoiding it altogether because of its inorganic arsenic. Advice on seaweed in pregnancy differs a lot between countries, so check your own health service's.[7] [8]

Side by side

Fresh and dried fruit

Per 100 g
FoodCarbsSugarsFiberBlood sugar impact
Grape
18.1 g15.5 g0.9 gmedium
Dried Raisins
79.2 g59.2 g3.7 ghigh
Apricot
11.1 g9.1 g2 glow
Dried Apricots
62.6 g53.4 g7.3 gmedium
Apple
13.8 g10.4 g2.4 glow
Dried Apples
66 g57.2 g7.5 gmedium

Drying concentrates the fibre along with the carbohydrate.

Fresh fruit

Per 100 g
FoodCarbsSugarsFiberBlood sugar impact
Raspberry
11.9 g4.4 g6.5 glow
Strawberry
7.7 g4.9 g2 glow
Apple
13.8 g10.4 g2.4 glow
Mango
15 g13.7 g1.6 gmedium
Grape
18.1 g15.5 g0.9 gmedium
Banana
22.8 g12.2 g2.6 gmedium

Berries carry the least sugar of these, and raspberries the most fibre; banana and grapes carry the most carbohydrate.

Starchy and green vegetables

Per 100 g
FoodCarbsFiberProteinBlood sugar impact
Potatoes
17.5 g2.2 g2 ghigh
Sweet Potato
20.1 g3 g1.6 gmedium
Plantains
32 g2.3 g1.3 gmedium
Pea
14.5 g5.7 g5.4 gmedium
Broccoli
6.6 g2.6 g2.8 glow
Zucchini
3.1 g1 g1.2 glow

Peas sit between the starchy vegetables and the green ones, with more fibre and protein than either.

Beans and lentils

Per 100 g
FoodCarbsFiberProteinBlood sugar impact
Lentils (Brown, Green, Red, Yellow, Black)
20.1 g7.9 g9 glow
Black beans
23.7 g8.7 g8.9 glow
Chickpeas (Garbanzo beans)
22 g7 g7 glow
Kidney Beans
22.8 g6.4 g8.7 glow
Edamame
9.9 g5.2 g11.9 glow
Soybeans
8.4 g6 g18.2 glow

Edamame and soybeans carry the least carbohydrate and the most protein of the legumes here.

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

All foods in Fruits & Vegetables

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

Dried Fruits

View all (41) →

Legumes and Pulses

View all (38) →

Starchy Veggies and Roots

View all (35) →

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Common questions

Can I eat fruit with gestational diabetes?

Yes. Fruit is on the ADA's 2026 list of whole foods recommended in pregnancy with diabetes. It still carries carbohydrate, so the amount counts: in the fresh fruit comparison above, strawberries carry the least per 100 g and banana the most. Your dietitian or diabetes team can tell you how fruit fits your own plan.[2]

Do potatoes count as a vegetable?

Not for 5 A Day. The NHS treats potatoes, yams, cassava and plantain as starchy foods, eaten in place of bread, rice or pasta. Sweet potato does count, though in this library it carries slightly more carbohydrate than potato.[1]

Does fruit juice count as a portion of fruit?

Once a day, up to 150 ml, by the NHS's count, and it suggests drinking it with a meal. The NHS classes the sugar in unsweetened juice and smoothies as free sugars, the kind most people are advised to cut down on, while the sugar in whole fruit is not.[1] [3]

Are bean sprouts safe in pregnancy?

Cooked thoroughly, yes. The FDA advises pregnant women and others at higher risk to avoid raw or lightly cooked sprouts of any kind, because the warm, humid conditions they grow in also suit bacteria such as salmonella, listeria and E. coli. That includes sprouts in salads and sandwiches.[6]

Is the seaweed in sushi okay in pregnancy?

Nori, the seaweed wrapped around sushi rolls, may carry less iodine than brown seaweeds such as kelp, according to the British Dietetic Association, though the amount varies considerably. Advice on seaweed differs between countries, so check your own health service's.[7]

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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