Food Library

Sweeteners with gestational diabetes: sugars under other names, and the substitutes

Honey, syrups and coconut sugar are sugars: in this library they carry about 67 to 95 g of carbohydrate per 100 g, against about 100 g for white sugar by USDA's figures, whatever a word like 'natural' on the label suggests. The substitutes, stevia, monk fruit, erythritol, xylitol and allulose, sweeten with little or no sugar. This guide compares the sugars, then sets out what regulators say about the substitutes and the catch with sugar alcohols. None of the regulator pages cited here gives separate advice for pregnancy, and the guide says so where it matters. Natural sweeteners and sugar substitutes each have a page of their own, and every sweetener is listed further down.

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18 foodsLast reviewed: September 7, 2026Sources

Sweeteners: foods and gestational diabetes

How these were chosen

Three sugars that are often presented as alternatives to white sugar, and three substitutes whose figures differ from each other. There is no white sugar in this library yet, so USDA's figure stands in for it in the text.

What to look for

  1. Honey and syrups count as sugar

    The NHS counts the sugars in honey, in syrups such as maple, agave and golden syrup, and in nectars as free sugars, the same as sugar added to food, and says adults should have no more than 30 g of free sugars a day. By USDA's figures, honey carries about 82 g of carbohydrate per 100 g, agave syrup 76 g, maple syrup 67 g and white sugar 100 g.[1] [2]

  2. A low GI doesn't make a syrup low in carbohydrate

    Diabetes UK notes that GI takes no account of portion size, and that the amount of carbohydrate affects blood sugar more than GI does. Agave syrup shows the gap: it has a GI of 15 in this library but about 76 g of carbohydrate per 100 g, as much as the other syrups, and its low-impact label here comes from the GI alone. Diabetes UK's advice is written for diabetes generally, not for pregnancy.[3]

  3. What regulators say about the substitutes

    The NHS says all approved sweeteners are considered a safe and acceptable alternative to sugar, within an acceptable daily intake: the most considered safe to have every day over a lifetime. The FDA says the sweeteners it authorises are safe for the general population under certain conditions of use; certain purified stevia compounds and monk fruit extracts are generally recognised as safe there, but whole-leaf and crude stevia are not. EFSA is re-evaluating older sweeteners and has finished aspartame, erythritol, acesulfame K, neotame and sucralose. None of these pages gives separate advice for pregnancy.[4] [5] [6]

  4. Sugar alcohols: carbohydrate on the label, laxative in quantity

    Erythritol, xylitol and sorbitol are polyols, also called sugar alcohols. Under the food-labelling rules used in the EU and the UK, polyols count towards the carbohydrate on the nutrition label, which is why sugar-free gum shows about 70 g of carbohydrate per 100 g in this library and no sugar. The NHS notes that polyols can have a laxative effect in large amounts, and foods with more than 10% added polyols must say 'excessive consumption may produce laxative effects'.[4] [7]

  5. 'Sugar-free' and 'no added sugars' on the pack

    Under EU rules, 'sugar-free' means no more than 0.5 g of sugars per 100 g, and 'no added sugars' means nothing added for its sweetness, sugars or any other food used that way; a product with sugars of its own must also say 'contains naturally occurring sugars'. Neither claim covers polyols or total carbohydrate, so read the nutrition panel.[8]

Side by side

Sugars and syrups

Per 100 g
FoodCarbsSugarsCaloriesBlood sugar impact
Honey
82.4 g82.1 g304 kcalhigh
Maple Syrup (pure, unsweetened)
67 g60 g260 kcalhigh
Agave Nectar
76.4 g68 g310 kcallow
Coconut Sugar
95.2 g92.5 g386 kcalmedium
Date Syrup
75 g68 g295 kcalhigh
Molasses (unsulfured)
74.7 g74.7 g290 kcalhigh

All carry about 67 to 95 g of carbohydrate per 100 g; maple syrup the least, coconut sugar the most.

Sugar substitutes

Per 100 g
FoodCarbsSugarsCaloriesBlood sugar impact
Stevia
0 g0 g0 kcallow
Monk Fruit Sweetener
0 g0 g0 kcallow
Erythritol
100 g0 g24 kcallow
Xylitol
100 g0 g240 kcallow
Allulose
100 g0 g40 kcallow

Stevia and monk fruit carry nothing; the sugar alcohols and allulose count as carbohydrate but not as sugar, and xylitol carries the most energy.

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

All foods in Sweeteners

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

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Common questions

Is honey better than sugar with gestational diabetes?

By weight it carries a little less carbohydrate: about 82 g per 100 g against 100 g for white sugar, by USDA's figures. The NHS counts the sugar in honey as free sugar, the same as added sugar, towards the same 30 g a day for adults. Your dietitian or diabetes team can say how it fits your plan.[1] [2]

Are sweeteners safe to use in pregnancy?

The NHS considers all approved sweeteners a safe alternative to sugar, and the FDA considers the ones it authorises safe for the general population under certain conditions of use; neither page gives separate advice for pregnancy. The NHS names one exception: aspartame isn't suitable for people with phenylketonuria (PKU). If you use sweeteners a lot, mention it to your midwife or doctor.[4] [5]

Is stevia okay in pregnancy?

Steviol glycosides, the sweet compounds in stevia, are among the approved sweeteners the NHS names, and certain purified ones are generally recognised as safe in the US. The FDA does not accept whole stevia leaves or crude stevia extracts as sweeteners. Neither regulator gives stevia-specific advice for pregnancy.[4] [5]

Can I use allulose?

It depends on where you live. The FDA has raised no objection to allulose in the US under certain intended conditions of use. In Great Britain it is a novel food, and an application to authorise it was still at the risk-assessment stage at the Food Standards Agency when this guide was written.[5] [9]

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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