# Baru Nuts (Dipteryx alata)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/baru-nuts
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-25
**Evidence Score:** 2 / 10
**Category:** Nut
**Also Known As:** Dipteryx alata, Baru seed, Cumaru, Pequi nut, Brazilian almond, Cerrado nut

## Overview

Baru nuts (Dipteryx alata) are a Brazilian Cerrado legume rich in selenium, copper, oleic acid, and polyphenols that drive measurable antioxidant and metabolic effects. Their primary bioactive compounds upregulate [glutathione](/ingredients/condition/detox) peroxidase (GPx) activity and modulate copper-dependent enzymatic pathways, supporting [oxidative stress](/ingredients/condition/antioxidant) reduction and [body composition](/ingredients/condition/weight-management) improvement.

## Health Benefits

• Increases [glutathione](/ingredients/condition/detox) peroxidase (GPx) activity by +0.08 U/mg (95% CI +0.05 to +0.12) - supported by one RCT in 46 overweight/obese women
• Elevates plasma copper concentration - demonstrated in the same 8-week RCT (p=0.037)
• Reduces abdominal adiposity - shown in an 8-week enriched diet study with overweight/obese women
• Improves HDL cholesterol levels - evidence from crossover study in 20 mildly hypercholesterolemic subjects
• Demonstrates antiproliferative effects on HT29 colorectal cancer cells - preliminary in-vitro evidence only

## Mechanism of Action

Baru nuts are a concentrated source of selenium, which serves as a cofactor for [glutathione](/ingredients/condition/detox) peroxidase (GPx), the selenoenzyme that catalyzes the reduction of hydrogen peroxide and lipid hydroperoxides to non-toxic forms, thereby lowering systemic [oxidative stress](/ingredients/condition/antioxidant). Their high copper content supports the activity of copper-zinc superoxide dismutase (Cu-Zn SOD), an antioxidant metalloenzyme critical for neutralizing superoxide radicals. Additionally, the oleic acid and polyphenol content in baru nuts may modulate NF-κB [inflammatory](/ingredients/condition/inflammation) signaling and lipid oxidation pathways, contributing to reductions in visceral adiposity.

## Clinical Summary

The primary clinical evidence comes from a single 8-week randomized controlled trial (RCT) in 46 overweight and obese women, which found that a baru-nut-enriched diet significantly increased [glutathione](/ingredients/condition/detox) peroxidase (GPx) activity by +0.08 U/mg (95% CI: +0.05 to +0.12) compared to control. The same trial reported a statistically significant elevation in plasma copper concentration (p=0.037), suggesting meaningful mineral bioavailability from the nut matrix. A separate 8-week enriched diet study demonstrated reductions in abdominal adiposity, though the sample size and study design details limit generalizability. Overall, the evidence base is preliminary and promising but constrained by small sample sizes, short durations, and a lack of large-scale replication.

## Nutritional Profile

Baru nuts are nutritionally dense with a macronutrient profile of approximately 23–26% protein, 36–40% lipids (fat), and 13–17% carbohydrates per 100g dry weight, with dietary fiber at approximately 13–15g/100g. The fat fraction is predominantly monounsaturated fatty acids (MUFA), particularly oleic acid (C18:1) at ~50–55% of total fatty acids, followed by polyunsaturated fatty acids (PUFA) including linoleic acid (C18:2, omega-6) at ~25–30%, and saturated fatty acids (primarily palmitic acid C16:0) at ~15–18%. Protein quality is notable with a relatively complete amino acid profile including lysine, methionine, and cysteine. Micronutrient highlights include copper (~1.6–2.0 mg/100g, bioavailable form consistent with observed plasma copper elevation in RCT data), manganese (~3.0–4.5 mg/100g), zinc (~3.5–5.0 mg/100g), magnesium (~180–220 mg/100g), phosphorus (~400–500 mg/100g), and potassium (~700–800 mg/100g). Iron content is approximately 4–6 mg/100g, though bioavailability may be moderated by phytate content. Bioactive compounds include tocopherols (vitamin E forms, primarily gamma-tocopherol, ~8–12 mg/100g), polyphenols including phenolic acids and flavonoids (~200–400 mg GAE/100g by some assays), and phytosterols which likely contribute to HDL effects. The selenium content, while not precisely quantified in all analyses, is hypothesized to contribute to [glutathione](/ingredients/condition/detox) peroxidase (GPx) activity enhancement observed in RCT data. Phytate levels (~4–6g/100g) may reduce mineral bioavailability somewhat; light roasting or soaking may improve net mineral absorption. Energy density is approximately 550–600 kcal/100g.

## Dosage & Preparation

The clinically studied dosage is 20 grams of whole roasted baru almonds daily, taken as part of a normocaloric diet for 8 weeks. No standardized extract or powder formulations have been clinically tested. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Baru nuts are generally well tolerated in food amounts, with no serious adverse events reported in available clinical trials; however, their high selenium content warrants caution at very high intake levels, as chronic excess selenium can cause selenosis (hair loss, nail brittleness, gastrointestinal disturbance). Individuals taking copper supplements or medications that alter copper [metabolism](/ingredients/condition/weight-management), such as D-penicillamine or zinc supplementation at high doses, should be aware of potential additive or antagonistic interactions given baru nuts' demonstrated effect on plasma copper. Baru nuts contain allergens common to legumes and tree nuts, making them a contraindication for individuals with legume or nut allergies. Safety data in pregnant or breastfeeding women, children, and individuals with Wilson's disease or hereditary hemochromatosis is insufficient, and these populations should consult a healthcare provider before use.

## Scientific Research

A randomized, placebo-controlled trial (PMID: 31366053) in 46 overweight and obese women showed that 20g daily baru nuts for 8 weeks significantly increased [glutathione](/ingredients/condition/detox) peroxidase activity compared to placebo. A separate crossover study evaluated lipid effects in 20 mildly hypercholesterolemic subjects over 6-week treatment periods.

## Historical & Cultural Context

The available research does not document traditional medicinal uses of baru nuts. They are described as a seed widely consumed and produced in Brazil, indicating contemporary culinary use rather than historical therapeutic applications.

## Synergistic Combinations

Selenium, Vitamin E, Brazil nuts, Alpha-lipoic acid, N-acetylcysteine

## Frequently Asked Questions

### How many baru nuts per day were used in clinical studies?

The primary 8-week RCT used a baru-nut-enriched diet protocol, though exact gram-per-day quantities were embedded in a dietary pattern rather than an isolated supplement dose. Typical dietary studies in this region use approximately 20–30 g per day of baru nuts as part of a mixed diet, but a precise standardized dose has not yet been established for therapeutic use.

### Do baru nuts contain more protein than other nuts?

Yes, baru nuts have a notably high protein content of approximately 23–29 g per 100 g, which is higher than almonds (~21 g) and cashews (~18 g), making them one of the most protein-dense nuts available. They also provide a favorable amino acid profile including lysine, which is often limiting in plant-based diets, adding to their nutritional distinctiveness.

### Can baru nuts increase glutathione levels?

Clinical evidence shows that baru nut consumption increases glutathione peroxidase (GPx) enzyme activity by +0.08 U/mg (95% CI: +0.05 to +0.12) rather than directly increasing glutathione concentrations themselves. This GPx upregulation is attributed primarily to the selenium content of baru nuts, since selenium is a required cofactor for GPx synthesis and activation in human tissue.

### Are baru nuts safe for people with nut allergies?

Baru nuts are botanically classified within the Fabaceae (legume) family rather than the Juglandaceae or Anacardiaceae families of true tree nuts, but cross-reactivity with common tree nut or legume allergens is a real concern. Individuals with documented peanut, soy, or tree nut allergies should exercise caution and consult an allergist before consuming baru nuts, as cross-reactive proteins have not been fully characterized in published literature.

### What is the selenium content of baru nuts compared to Brazil nuts?

Brazil nuts are the most selenium-dense food known, containing approximately 68–91 mcg of selenium per nut (roughly 1,900 mcg per 100 g), whereas baru nuts contain an estimated 3–15 mcg of selenium per 100 g depending on soil composition. While baru nuts provide a meaningful selenium contribution to diet and sufficient to upregulate GPx activity in clinical studies, they should not be considered a substitute for Brazil nuts as a high-dose selenium source.

### What is the research quality and strength of evidence for baru nuts' health benefits?

Clinical evidence for baru nuts is limited to a few small studies, with the most robust data coming from an 8-week RCT in 46 overweight/obese women showing increases in glutathione peroxidase activity and plasma copper levels. While results are promising for metabolic and cardiovascular markers like HDL cholesterol and abdominal adiposity reduction, larger and longer-duration trials are needed to confirm efficacy and establish optimal dosing. The current evidence base is moderate quality but insufficient for strong clinical recommendations.

### Are baru nuts safe during pregnancy and breastfeeding?

There is insufficient clinical data on baru nut safety during pregnancy and breastfeeding, so they should be used cautiously or avoided during these periods. While baru nuts are a whole food naturally consumed in their native Brazilian regions, individual sensitivities and the unknown effects of concentrated supplemental intake on fetal or infant development have not been formally evaluated. Pregnant or nursing women should consult a healthcare provider before adding baru nut supplements to their regimen.

### Who benefits most from baru nut supplementation based on current research?

Current evidence suggests potential benefits for overweight and obese individuals, particularly women, as studies showing improvements in glutathione peroxidase activity, HDL cholesterol, and abdominal adiposity were conducted in these populations. People with elevated oxidative stress markers or suboptimal antioxidant status may also benefit from the selenium and copper content. However, more research is needed to identify whether specific health conditions or demographics derive the greatest benefit.

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