Pregnancy safety
Avoid Job's Tears (Adlay) during pregnancy
Job's Tears (coix seed, yi yi ren) is traditionally contraindicated in pregnancy and animal work reports a uterine-stimulant effect, so it is the one grain here where the concern is a possible effect on the uterus rather than on blood sugar.
This is about food safety in pregnancy, not blood sugar — it applies whatever your readings look like. Confirm it with your midwife or doctor.
Allergen Information
May contain: gluten
Nutrition per 100g
Grains & Cereal › Whole Grains
Job's Tears (Adlay) for Gestational Diabetes
Job's Tears, also known as Adlay or Coixseed, are a gluten-free ancient grain native to Southeast Asia. They have a chewy texture similar to pearl barley and a subtly sweet, nutty flavor. For centuries, this grain has been a staple in traditional Chinese medicine for its purported anti-inflammatory and diuretic properties. It is often used in soups, stews, and drinks, valued for both its culinary versatility and health benefits. The grains are tear-shaped, which gives them their unique name, and they provide a satisfying bite to any dish they are added to.
At a glance
Pregnancy safety
AvoidBlood sugar impact
lowCarbs / 100 g
23.2gIs Job's Tears (Adlay) safe with gestational diabetes?
Job's Tears have an impressive nutritional profile on paper. As a low-glycemic index food, they provide a slow and steady release of glucose into the bloodstream, which is crucial for maintaining stable blood sugar levels. Their high fiber content further aids in glycemic control and promotes a feeling of fullness, helping to manage appetite and overall carbohydrate intake. The reason to leave them out is not blood sugar at all: coix seed, or yi yi ren, is traditionally contraindicated in pregnancy and animal work reports a uterine-stimulant effect, so it is a grain to come back to after your baby arrives.
How does Job's Tears (Adlay) affect blood sugar during pregnancy?
The glycemic index (GI) of Job's Tears is approximately 40, placing them firmly in the low-GI category. This low rating is primarily due to the significant amount of dietary fiber, which slows down the digestion and absorption of carbohydrates. This process prevents the sharp, rapid spikes in blood glucose that can be problematic in gestational diabetes. Cooking methods do not drastically alter their GI, but boiling is preferred over any method that might involve added sugars or fats. Consuming this whole grain leads to a more gradual and manageable blood sugar response.
What is a safe portion of Job's Tears (Adlay) for gestational diabetes?
There is no portion of Job's Tears to aim for while you are pregnant, since the concern is a possible effect on the uterus rather than anything a smaller serving would address. For the same slow-release, high-fiber role on your plate, pearl barley, steel-cut oats or quinoa behave very similarly, at about half a cup cooked. Visually, this portion is roughly the size of a cupped hand or a standard teacup. Sticking to this serving size allows you to incorporate a nutritious grain into your diet while leaving room for essential proteins and vegetables on your plate. Always monitor your blood sugar post-meal to confirm your individual tolerance.
How should I combine Job's Tears (Adlay) to manage blood sugar during pregnancy?
To create a well-balanced, blood-sugar-friendly meal, it's essential to pair Job's Tears with adequate protein and healthy fats. Combine a serving with grilled chicken breast, baked salmon, or a hard-boiled egg to further blunt the glycemic response. Adding non-starchy vegetables like broccoli, spinach, or bell peppers will increase the meal's fiber and nutrient density without significantly adding to the carbohydrate load. A drizzle of olive oil or a few slices of avocado can also be included to enhance satiety and slow digestion even more effectively.
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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