Calories in Brazil Nut: Nutritional facts for Brazil Nut Types

A 100g serving of fresh raw Brazil nuts contains 656 calories, while the same quantity of roasted, salted Brazil nuts provides 669 calories.

One kilogram (1000g) of fresh raw Brazil nuts contains 6560 calories, whereas a kilogram of roasted, salted Brazil nuts provides 6690 calories.

A single raw Brazil nut (5g) contains 33 calories. A single roasted, salted Brazil nut (5g) provides 34 calories. Commercial brands display varying caloric counts, as a serving of NOW Foods Real Food Raw Brazil Nuts (1oz) provides 190 calories, while a serving of Trader Joe's Roasted & Salted Brazil Nuts (1oz) contains 200 calories. A serving of Sunfood Superfoods Raw Organic Brazil Nuts (1oz) supplies 186 calories.

Two raw Brazil nuts (10g) contain 66 calories. Two roasted and salted Brazil nuts (10g) provide 68 calories.

Brazil nuts offer distinct physiological advantages, particularly concerning thyroid regulation, cardiovascular protection, and anti-inflammatory responses. The seed acts as a potent reservoir of selenium and ellagic acid. The specific advantages are detailed below.

• Regulates Thyroid Function: The thyroid gland requires high concentrations of selenium to convert T4 hormones into the active T3 form. Research by Thomson, C. D., et al. (2008), "Brazil nuts: an effective way to improve selenium status," confirmed that consuming two nuts daily increases plasma selenium levels as effectively as supplementation, thereby supporting optimal thyroid hormone synthesis.
• Enhances Cardiovascular Health: High levels of healthy unsaturated fats and fiber contribute to improved lipid profiles. A study by Colpo, E., et al. (2013), "A single consumption of high amounts of the Brazil nuts improves lipid profile of healthy volunteers," demonstrated that intake of the nut significantly increases HDL cholesterol while lowering LDL cholesterol within hours of consumption.
• Reduces Inflammation: Bioactive compounds such as ellagic acid and selenium function as antioxidants that mitigate cellular damage. Research by Maranhão, P. A., et al. (2011), "Brazil nut intake improves lipid profile, oxidative stress and microvascular function in obese adolescents," established that regular consumption reduces oxidized LDL and improves microvascular function, signaling a reduction in systemic inflammation.

Brazil nuts carry a risk of selenium toxicity if consumed in excess due to the exceptionally high mineral concentration. Dietitians recommend limiting intake to 1 to 2 kernels (approximately 5g to 10g) per day and suggest pumpkin seeds as a lower-selenium alternative for daily snacking. The table below shows the potential adverse effects.

• Causes Selenium Toxicity (Selenosis): Consuming large quantities leads to an accumulation of selenium, resulting in symptoms like hair loss, brittle nails, and gastrointestinal distress. Research by Rayman, M. P. (2012), "Selenium and human health," indicates that chronic intake exceeding the upper tolerable limit of 400mcg per day can trigger selenosis and neurological damage.
• Contains Aflatoxins: Improper storage allows the growth of Aspergillus mold, which produces carcinogenic mycotoxins. A study by Pacheco, A. M., & Scussel, V. M. (2007), "Selenium and aflatoxin levels in raw Brazil nuts from the Amazon basin," notes that the shell often harbors these fungal toxins, necessitating rigorous quality control during processing to ensure safety.

Yes, Brazil nuts are good for health because the seed supports thyroid efficiency, strengthens cardiovascular function, and protects cognitive acuity. Thyroid health improves through the provision of selenium, a mechanism detailed in the study by Thomson, C. D., et al. (2008), "Brazil nuts: an effective way to improve selenium status." Heart health benefits from the monounsaturated fats that regulate cholesterol, as explored by Colpo, E., et al. (2013), "A single consumption of high amounts of the Brazil nuts improves lipid profile of healthy volunteers." Cognitive health relies on the antioxidant properties of selenium to prevent oxidative stress in neural tissues, a benefit confirmed by research from Cardoso, B. R., et al. (2016), "Brazil nuts consumption modulates Nrf2 expression in elderly subjects with mild cognitive impairment."

Yes, Brazil nuts assist in managing diabetes by reducing oxidative stress and improving microvascular function. Dietitians suggest a consumption rate of 1 kernel per day to obtain beneficial selenium levels without affecting caloric balance. Research by Maranhao, P., et al. (2011), " Brazil nuts intake improves lipid profile, oxidative stress and microvascular function in obese adolescents: a randomized controlled trial," indicates that the antioxidant capacity of the nut helps mitigate the systemic inflammation often associated with insulin resistance. A study by Stockler-Pinto, M. B., et al. (2016), "Brazil nut consumption improves Nrf2 expression in hemodialysis patients," confirms that selenium activates pathways that protect cells from oxidative damage, a common complication in diabetes. Research by Maranhão, P. A., et al. (2011), "Brazil nut intake improves lipid profile, oxidative stress and microvascular function in obese adolescents," further establishes that the nut enhances blood flow and vessel health, which are critical for preventing diabetic neuropathy.

Excessive consumption of Brazil nuts leads to selenosis, a condition characterized by nausea, skin lesions, and nerve damage. Medical professionals advise against exceeding 2 nuts daily to stay within safe mineral limits. Research by MacFarquhar, J. K., et al. (2010), "Acute selenium toxicity associated with a dietary supplement," highlights that rapid accumulation of selenium causes acute gastrointestinal and neurological symptoms. A study by Morris, J. S., & Crane, S. B. (2013), "Selenium toxicity from a Brazil nut supplement," confirms that sustained high intake results in hair loss and nail deformities. Research by Rayman, M. P. (2012), "Selenium and human health," further warns that long-term exposure to high selenium levels may increase the risk of type 2 diabetes and skin cancer.

Caloric density fluctuates based on the processing method and the addition of external ingredients. Oil-roasted Brazil nuts present the highest energy load at approximately 680 calories per 100g due to the absorption of frying oils. Dry-roasted varieties follow closely at 669 calories per 100g as water loss concentrates the nut's natural fats. Raw Brazil nuts offer a standard profile at 656 calories per 100g. Chocolate-covered options actually contain fewer calories per 100g (around 580) compared to the pure nut because the chocolate coating is less calorically dense than the pure oil found in the seed, though this introduces added sugars.

The Brazil nut (Bertholletia excelsa) originated in the vast Amazon rainforest basin, spanning across Brazil, Bolivia, Peru, Colombia, Venezuela, and the Guianas. Indigenous peoples of the Amazon utilized the nutrient-dense seed as a survival food and energy source for centuries before European contact. The tree ranks among the largest and longest-lived organisms in the rainforest, often living for 500 to 1,000 years. Commercial production relies almost exclusively on wild harvesting rather than plantations because the tree depends on the euglossine bee for pollination and the agouti rodent for seed dispersal, a complex ecological relationship difficult to replicate in farming. Spanish and Portuguese explorers introduced the nut to European markets in the 17th century, establishing the seed as a valuable global commodity.