Brazil Nuts
Giant nuts from deep in the Amazon rainforest; a single nut is a natural pharmacy thanks to its legendary content of organic selenium. They contain almost no carbohydrate, so a glycemic index does not apply, and they are the number-one natural supplement for thyroid health.
Glycemic index
Glycemic load
Calories
Protein
💡 Smart Nutritional Guidance
Consumption advice
One to two nuts a day at most give instant fullness and cover 100% of your body's and thyroid's selenium needs, along with antioxidants.
Best preparation methods
Eat them raw and crunchy as they are in the morning with a glass of water, and avoid heavy roasting to protect their delicate fatty acids and minerals.
Important Nutritional Note
⚠️ Critical clinical dose warning: Brazil nuts contain extremely high concentrations of selenium; do not overeat them, keep to one or two a day, and never eat more than 3 to 4 a day to avoid selenium toxicity (selenosis).
Nutrition facts
| Nutrient | Per 100 g | Per typical portion (10 g) |
|---|---|---|
| Calories | 659 kcal | 65.9 kcal |
| Protein | 14.3 g | 1.4 g |
| Carbohydrate | 12.3 g | 1.2 g |
| Available carbohydrate | 4.8 g | 0.5 g |
| Fat | 67.1 g | 6.7 g |
| Dietary fibre | 7.5 g | 0.8 g |
The typical portion is approximate, for comparison purposes.
Comparison & smarter alternatives
It has 659 kcal per 100 g, ranking 13 of 15 in Nuts & seeds (lowest first).
Related foods from the same family:
Frequently asked questions
Is Brazil Nuts good for weight loss?
Brazil Nuts provides 659 kcal per 100 g, so it is high in calories and fits a weight-loss plan only in small, measured amounts; a 10 g portion gives 66 kcal.
How does Brazil Nuts affect blood sugar?
Brazil Nuts contains only 4.8 g of available carbohydrate per 100 g, so the glycemic index does not apply and its direct effect on blood sugar is minimal. The meal’s effect depends on what you eat with it, such as bread, rice or sweetened sauces.
What is the nutritional value of a typical portion of Brazil Nuts?
A typical 10 g portion of Brazil Nuts provides about 66 kcal, 1.4 g protein, 1.2 g carbohydrate, 6.7 g fat and 0.8 g fibre.
Reviewed by the WiBo Health medical team · Last reviewed 13 October 2026
Disclaimer: This guidance is for nutritional lifestyle orientation and does not constitute a diagnostic medical device under EU Regulation MDR 2017/745.