Pregnancy safety
Limit how much Brazil Nuts you eat during pregnancy
No more than one or two nuts a day.
A single Brazil nut can carry 70-90 mcg of selenium, so the six-to-eight-nut handful this page describes lands well past the 400 mcg/day upper limit that still applies in pregnancy, and sustained excess selenium causes selenosis.
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
Contains: tree-nuts
Nutrition per 100g
Nuts, Seeds & Butters › Whole Nuts
Brazil Nuts for Gestational Diabetes
Brazil nuts are large, nutrient-dense seeds from a tree native to the Amazon rainforest. They are most famous for their exceptionally high selenium content, with just one nut providing more than the daily recommended intake. These nuts possess a rich, buttery flavor and a smooth, creamy texture when eaten. Beyond selenium, they are a great source of healthy monounsaturated and polyunsaturated fats, magnesium, and vitamin E. Their unique nutritional profile makes them a powerful addition to a balanced diet for supporting thyroid function, reducing inflammation, and promoting heart health.
At a glance
Pregnancy safety
LimitBlood sugar impact
lowCarbs / 100 g
12.3gIs Brazil Nuts safe with gestational diabetes?
Brazil nuts are an excellent food choice for managing gestational diabetes due to their nutritional composition. They are very low in carbohydrates and high in healthy fats, protein, and fiber, all of which contribute to stable blood sugar levels. Their selenium content is remarkable, with a single nut carrying 70 to 90 micrograms, which supports thyroid function but also means one or two nuts a day is the ceiling in pregnancy rather than a handful. Within that limit they are a smart, low-glycemic snack that helps prevent glucose spikes while providing essential nourishment for you and your baby.
How does Brazil Nuts affect blood sugar during pregnancy?
The impact of Brazil nuts on blood sugar is minimal, classifying them as a low glycemic index and low glycemic load food. The high concentration of fat and fiber significantly slows down digestion and the absorption of any carbohydrates into the bloodstream. This blunting effect helps prevent the sharp blood glucose spikes that are critical to avoid in gestational diabetes management. Lightly toasting the nuts does not meaningfully alter their glycemic properties, making them a consistently safe choice regardless of simple preparation methods.
What is a safe portion of Brazil Nuts for gestational diabetes?
Portion control here is set by selenium rather than by calorie and fat density. Keep to one or two nuts a day: the small handful of six to eight that suits most nuts would land well past the 400 microgram daily selenium upper limit, which still applies in pregnancy, and sustained excess selenium causes selenosis. Two nuts already cover a day's selenium several times over, along with the healthy fats and fiber that come with them. If you want a larger nut snack, almonds, walnuts or hazelnuts give you the same blood sugar benefit and the same care over calories for healthy weight gain, with no selenium ceiling to watch.
How should I combine Brazil Nuts to manage blood sugar during pregnancy?
Brazil nuts are a perfect pairing partner to mitigate the glycemic impact of other foods. Combine a small handful of Brazil nuts with a carbohydrate source, such as a small apple or a few berries, to slow sugar absorption and create a more balanced snack. They can also be chopped and added to a bowl of plain Greek yogurt to boost its fat and fiber content, increasing satiety and further stabilizing blood sugar. Incorporating them into a salad with lean protein like grilled chicken adds texture and healthy fats for a complete, blood-sugar-friendly meal.
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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