Fruits & Vegetables

Vegetables with gestational diabetes: half the plate, salads, and the ones with a rule

Most of the 84 vegetables here, the leaves, brassicas, stems and alliums, carry under 10 g of carbohydrate per 100 g; only a handful carry more. The Fruits & Vegetables guide separates out the starchy roots and covers washing, sprouts and cut melon; this guide is about the rest. It follows the American Diabetes Association's plate, which is written for diabetes in general, on what goes on half the plate and what counts as starchy. 11 of the 84 carry a pregnancy caution. Five are sprouts and microgreens, two are fermented, and the rest, fiddleheads, bitter melon, moringa and sea lettuce, each have a rule of their own. Spanish advice on raw vegetables is much stricter than British, and the guide says so where it applies.

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84 foodsLast reviewed: September 9, 2026Sources

Spinach
Kale
Cauliflower
Asparagus

How these were chosen

Six vegetables from the ADA's non-starchy list, picked for carbohydrate, fibre and protein, and two that are here for their rule: kimchi for salt and listeria, fiddleheads for cooking. Broccoli and peas are featured in the Fruits & Vegetables guide and aren't repeated.

What to look for

  1. Half the plate: the non-starchy vegetables

    The ADA's Diabetes Plate fills half a 9-inch plate with non-starchy vegetables, a quarter with protein and a quarter with carbohydrate foods, and says the vegetable half doesn't raise blood glucose very much. Its non-starchy list covers most of this group: asparagus, broccoli, cauliflower, Brussels sprouts, cabbage, bok choy, celery, cucumber, aubergine, leafy greens, mushrooms, okra, onions, leeks, peppers, salad greens, summer squash, radish, tomatoes and tomatillos. In this library those sit between 1 and 9 g of carbohydrate per 100 g. The ADA writes for diabetes generally, not pregnancy.[1]

  2. The quarter plate: corn, peas, parsnip and sweet potato

    The ADA counts corn, green peas, parsnips, pumpkin, winter squash, plantains, potatoes and sweet potatoes as starchy vegetables, which go in the carbohydrate quarter of the plate with grains and beans. In this library, corn carries 21 g of carbohydrate per 100 g, sweet potato 20 g, parsnip 18 g and peas 14.5 g, against under 7 g for broccoli. Pumpkin is the odd one: the ADA calls it starchy, but the pumpkin here lists only 6.5 g.[1]

  3. Bagged salads and ready-to-eat produce

    The NHS says to wash salad vegetables such as lettuce and tomatoes thoroughly, because soil can carry bacteria, and lists pre-packaged salads among the foods to be careful with: keep them chilled and eat them by the use-by date, because ready-to-eat produce can carry listeria. Spain's pregnancy advice goes much further, asking for raw fruit and vegetables to be washed and disinfected and for bagged salads and salads eaten out to be avoided; the Spanish page says so.[2]

  4. Sprouts must be cooked; microgreens are different

    The FDA advises pregnant women to avoid raw or lightly cooked sprouts of any kind, and this library marks alfalfa, mung bean, broccoli and soybean sprouts to eat cooked until steaming hot. Microgreens are cut above the growing surface rather than eaten whole. Quebec's food safety page groups them with sprouts as raw foods that can carry harmful bacteria, and says to rinse them; its instruction not to eat raw sprouts in pregnancy is for sprouts only. The microgreens page here says washed just before eating, or cooked.[2] [3] [4]

  5. Fermented and sea vegetables carry the salt

    Most vegetables here list under 100 mg of sodium per 100 g. Kimchi and sauerkraut list about 660 to 670 mg, samphire 1,200 mg and sea lettuce 2,600 mg, against the NHS's 6 g of salt a day, which is about 2.4 g of sodium. The kimchi and sauerkraut pages carry a listeria condition, commercially made and refrigerated or else heated through; that is this library's own rule, as the NHS page doesn't name fermented vegetables.[2] [5]

  6. Fiddleheads, bitter melon, moringa and sea lettuce

    Health Canada says to boil fiddleheads for 15 minutes or steam them for 10 to 12, and to discard the water, after outbreaks from raw or undercooked fiddleheads since 1994. The NIH's LiverTox says bitter melon, as a medicinal extract, is a potential abortifacient and should not be used in pregnancy; the page here allows small cooked amounts and rules out juice, teas and extracts, which is the library's own line. Moringa leaf powders and extracts fall under the NHS's advice not to take herbal medicines in pregnancy; its cooked leaves are marked here on the library's judgement. Sea lettuce carries iodine, and the British Dietetic Association's seaweed advice applies.[6] [7] [8] [9]

Side by side

Leaves and brassicas

Per 100 g
FoodCarbsFiberProteinBlood sugar impact
Watercress
1.3 g0.5 g2.3 glow
Spinach
3.6 g2.2 g2.9 glow
Lettuce
2.9 g1.3 g1.4 glow
Cauliflower
5 g2 g1.9 glow
Kale
8.8 g3.6 g4.3 glow
Brussels sprouts
9 g3.8 g3.4 glow

From 1.3 g of carbohydrate per 100 g in watercress to 9 g in Brussels sprouts; kale carries the most protein, 4.3 g.

The starchy end

Per 100 g
FoodCarbsSugarsFiberBlood sugar impact
Beet
9.6 g6.8 g2.8 gmedium
Pea
14.5 g5.7 g5.7 gmedium
Parsnip
18 g4.8 g4.9 ghigh
Sweet Potato
20.1 g4.2 g3 gmedium
Corn
21 g4.5 g2.4 gmedium
Pumpkin
6.5 g2.8 g0.5 ghigh

Corn, sweet potato and parsnip carry 18 to 21 g of carbohydrate per 100 g; the pumpkin here only 6.5 g.

The onion family

Per 100 g
FoodCarbsSugarsFiberBlood sugar impact
Scallions (Green Onions)
7.3 g2.3 g2.6 glow
Onion
9.3 g4.2 g1.7 glow
Leek
14.2 g3.9 g1.8 glow
Shallot
16.8 g7.9 g3.2 glow
Garlic
33.1 g1 g2.1 glow
Black Garlic
35 g25.2 g2.1 gmedium

Garlic lists 33 g of carbohydrate per 100 g, but a clove weighs a few grams; black garlic's 35 g is mostly sugar.

Salt in vegetables

Per 100 g
FoodSodiumCarbsBlood sugar impact
Celery
80 mg3 glow
Chard
213 mg3.7 glow
Kimchi
Caution
670 mg3.5 glow
Sauerkraut
Caution
661 mg4.3 glow
Sea Beans (Samphire)
1,200 mg3.2 glow
Sea Lettuce
Caution
2,600 mg6.1 glow

From 80 mg of sodium per 100 g in celery to 2,600 mg in sea lettuce.

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

All foods in Vegetables

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

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Common questions

Which vegetables have the least carbohydrate?

In this library, watercress, bok choy, lettuce, celery, courgette, cucumber, spinach and mushrooms all list under 4 g of carbohydrate per 100 g. They are the vegetables the ADA's Diabetes Plate puts on half the plate, in advice written for diabetes in general.[1]

Are bagged salads safe in pregnancy?

By the NHS's advice, yes, kept chilled and eaten by the use-by date, and it says to wash salad vegetables thoroughly. Spain's pregnancy advice says to avoid bagged salads unless you wash and disinfect them yourself. Follow your own country's advice.[2]

Can I eat kimchi or sauerkraut while pregnant?

The pages here say commercially made and refrigerated, eaten well within its date, or otherwise heated until steaming hot. That is this library's rule; the NHS's foods-to-avoid page doesn't name fermented vegetables. Both also carry about 660 to 670 mg of sodium per 100 g.[2] [5]

Can I eat raw vegetables while pregnant?

Washed thoroughly, yes, by the NHS's advice; most fruit and vegetables are safe in pregnancy once the soil is washed off. The exceptions are raw sprouts, which the FDA says to avoid, and enoki mushrooms, which the NHS says to cook thoroughly.[2] [3]

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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