French Green Lentils — glycemic index and gestational diabetes guide

Allergen Information

May contain: Gluten

Nutrition per 100g

Calories116 kcal
Carbohydrates20.1g
of which Sugars0.4g
Fiber7.9g
Protein9g
Fat0.4g
of which Saturated0.1g
Sodium2mg
Glycemic Index28

Fruits & VegetablesLegumes and Pulses

French Green Lentils for Gestational Diabetes

Blood Sugar FriendlyHigh FiberComplex Carb

French green lentils, also known as Puy lentils, are prized for their rich, peppery flavor and firm texture. Unlike other lentil varieties, they hold their shape exceptionally well after cooking, making them a culinary favorite. They are a nutritional powerhouse, packed with plant-based protein, dietary fiber, and essential minerals like iron and magnesium. Their dark, slate-green color with blue marbling is distinctive and signals their robust nutrient profile. These lentils offer a fantastic combination of taste, texture, and health benefits for a variety of dishes.

At a glance

Pregnancy safety

Safe

Blood sugar impact

low

Carbs / 100 g

20.1g

Is French Green Lentils safe with gestational diabetes?

French green lentils are an excellent choice for managing gestational diabetes due to their impressive nutritional profile. They are rich in complex carbohydrates and dietary fiber, which are crucial for stable blood sugar levels. The high fiber content slows the absorption of glucose into the bloodstream, preventing the sharp spikes that are a concern during pregnancy. Their low glycemic index makes them a safe and reliable carbohydrate source to include in your meal plan for sustained energy and nutrient intake.

How does French Green Lentils affect blood sugar during pregnancy?

With a very low glycemic index (GI) of around 28, French green lentils have a minimal impact on blood sugar levels. The complex carbohydrates they contain are digested slowly, providing a gradual and sustained release of energy rather than a rapid surge. This helps maintain glucose stability between meals, which is a primary goal in gestational diabetes management. Be mindful not to overcook the lentils, as this can slightly increase their GI; aim for a firm, 'al dente' texture for the best glycemic response.

What is a safe portion of French Green Lentils for gestational diabetes?

A suitable portion for a meal is approximately three-quarters of a cup to one cup of cooked lentils. This amount provides substantial fiber and protein to promote fullness and stable energy levels without overloading on carbohydrates. Visually, this portion is about the size of your clenched fist. Always monitor your individual blood sugar response, as personal tolerance can vary, and adjust your portion size as needed based on your registered dietitian's advice and your glucose readings.

How should I combine French Green Lentils to manage blood sugar during pregnancy?

To create a perfectly balanced meal, pair French green lentils with a source of lean protein and healthy fats. For example, serve them alongside grilled chicken or fish, or toss them in a salad with avocado and an olive oil-based vinaigrette. The addition of protein and fat further slows down carbohydrate absorption, providing an extra layer of blood sugar control. Including plenty of non-starchy vegetables like leafy greens, bell peppers, or cucumbers will also add volume, nutrients, and fiber without significantly impacting glucose.

Last reviewed: August 31, 2026

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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Sources & Editorial Review

Content independently developed by Dalo Labs ApS, informed by the American Diabetes Association's Standards of Care in Diabetes, ACOG's gestational diabetes guidelines, and the IADPSG consensus criteria. Not endorsed by or affiliated with any referenced organization. · Last reviewed: August 2026

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