Skip to content

Your account

With an account, your progress (modules read, XP, badges, cards, notebook, pack, challenges) follows you on every device. Without one, it stays in this browser.

or
Harmless🍽️ Edible

🌰 Brazil Nut

Bertholletia excelsa · Lecythidaceae

🌴 Tropical
🧠 To remember it“Never under a fruiting tree” — the Brazil nut won't poison you, but it can knock you dead before you even pick it up.
Brazil Nut — Bertholletia excelsa

🔍 Identify it without mistakes

Amazon rainforest giant that can exceed 50 m in height, producing a spherical fruit with an extremely hard woody shell weighing up to 2 kg. It falls whole from the top of the tree — a real physical hazard if you camp or walk underneath without a helmet. Inside, 15 to 25 seeds (commercial Brazil nuts) are packed tightly like orange segments.

  1. very tall emergent tree (up to 50 m), straight trunk branchless on the lower two-thirds
  2. spherical fruit with a very hard woody shell, dark brown, as big as a grapefruit, weighing up to 2 kg
  3. inside the fruit, 15 to 25 triangular seeds with a ridged brown shell, packed tightly like orange segments
  4. ripe fruits drop to the ground by gravity without gentle dispersal — a characteristic dull thud in the forest
Size30-50 m
Floweringlarge cream-yellow flowers pollinated by large specialized bees, fruits ripening 14 months later and falling from January to June
Habitatundisturbed primary Amazonian forest along major rivers (Amazon, Rio Negro, Orinoco); relies on specific pollinating bees and agoutis to disperse seeds, making it highly sensitive to deforestation

⚠️ Not to be confused with

No dangerous edible look-alikes known (—)none (the seeds themselves are safe to eat and edible)

To tell them apart: the real danger is physical rather than plant confusion: never take shelter or camp under a fruiting Brazil nut tree, as the whole fruit can drop from 40-50 m high at over 80 km/h, causing severe, sometimes fatal, head trauma

🍽️ Eating it

Partsseeds (the nuts)
Seasonfruits fall from January to June in the Amazon
Tasterich, creamy, slightly sweet nut taste, one of the most calorie-dense tree nuts

Preparation : gather fruits that have fallen to the ground (never while standing directly under the tree), crack open the extremely hard woody shell with a machete or heavy tool, extract the triangular seeds, and shell them individually to reach the edible nut, eaten raw or roasted

659kcalEnergy
14.3gProtein
67.1gFat
12.3gCarbs

USDA FoodData Central FDC 170569, dried unblanched seeds, per 100 g

💊 Healing with it

no major traditional medicinal uses documented beyond its dietary supply of selenium

Level of evidence : traditional use — USDA FoodData Central — Nuts, brazilnuts, dried, unblanched

⚠️ the selenium content is so high (up to several times the recommended daily intake per single nut) that regularly eating more than a few nuts a day can lead to selenium toxicity (hair loss, digestive issues, nerve damage)

🪓 Other bushcraft uses

  • oil extracted from seeds used in cosmetics and traditional soap making
  • very hard shell sometimes used as a small container or fuel source
Sources (2)

No entry replaces a certain identification in the field, or medical advice. When in doubt: don't eat it. If ingestion is suspected: poison control or 112/911.