Hermetica Superfood Encyclopedia
The Short Answer
Byrsonima crassifolia is an Amazonian fruit tree whose leaf and seed extracts contain phenolic compounds that may influence neurotransmitter systems and glucose metabolism. Research suggests potential antidepressant-like effects and blood sugar regulation properties, though evidence remains preliminary.
CategoryHerbs (Global Traditional)
GroupAmazonian
Evidence LevelModerate
Primary KeywordByrsonima crassifolia benefits
Synergy Pairings3
Byrsonima crassifolia — botanical close-up
Health Benefits
Origin & History
Natural habitat
Byrsonima crassifolia, commonly known as murici, is a tropical tree in the Malpighiaceae family native to Mexico, Central America, and South America. The plant's leaves, roots, stems, seeds, and fruits are processed into extracts using solvents like methanol, ethyl acetate, or hexane via maceration or fractionation methods.
“In Mexican traditional medicine with prehispanic origins, Byrsonima crassifolia has been used for mental disorders, diabetes, rheumatism, wound healing, and infections. Roots and stems have been employed since ancient times in Mexico, Central, and South America for antibacterial activity against pathogens like Staphylococcus aureus.”Traditional Medicine
Scientific Research
No human clinical trials, RCTs, or meta-analyses have been conducted on Byrsonima crassifolia. All available evidence comes from preclinical animal models including mouse forced swimming tests showing antidepressant effects (PMID: 21788126), diabetic rat studies demonstrating glucose reduction (PMID: 25435601), and anti-inflammatory research in cell cultures and mice (PMID: 30263306).
Preparation & Dosage
Traditional preparation
Based on animal studies only: Methanolic leaf extract 500 mg/kg (standardized to flavonoids) for mood support; hexane seed extract 200-400 mg/kg for blood sugar regulation. No human dosage data available. Consult a healthcare provider before starting any new supplement.
Nutritional Profile
Byrsonima crassifolia (Nance/Murici) fruit contains approximately 70-80% water content. Macronutrients per 100g fresh fruit: carbohydrates ~14-18g (primarily simple sugars glucose and fructose), dietary fiber ~2-4g (pectin-rich), protein ~0.5-1.2g, fat ~0.3-0.8g. Micronutrients: vitamin C ~30-80mg/100g (notable but lower than acerola), vitamin A precursors (beta-carotene ~0.1-0.3mg/100g), potassium ~120-180mg/100g, calcium ~15-25mg/100g, magnesium ~10-18mg/100g, phosphorus ~12-20mg/100g, iron ~0.3-0.8mg/100g. Key bioactive compounds: flavonoids including quercetin and kaempferol derivatives concentrated in leaves and bark; triterpenoids including birsonimadiol (a lupane-type triterpene isolated from seeds, primary anti-inflammatory compound); phenolic acids including gallic acid and ellagic acid in bark and leaves; tannins (condensed and hydrolyzable) ~2-5% in bark; anthocyanins in fruit skin contributing to yellow-orange pigmentation. Seed extracts contain active hypoglycemic constituents including saponins and flavonoid glycosides. Leaf extracts contain alkaloids and terpenoids associated with observed antidepressant-like activity. Bioavailability notes: polyphenol absorption likely enhanced by the fruit's natural fat content; birsonimadiol bioavailability not formally characterized in humans; most bioactive compound data derives from organic solvent extractions used in preclinical studies, meaning real-world oral bioavailability from whole food consumption remains poorly characterized.
How It Works
Mechanism of Action
Byrsonima crassifolia's phenolic compounds appear to modulate neurotransmitter pathways, potentially affecting serotonin and dopamine systems to produce antidepressant-like effects. The seed extract may enhance pancreatic beta-cell insulin release while improving glucose uptake in peripheral tissues. These mechanisms likely involve antioxidant activity and direct interaction with metabolic enzymes.
Clinical Evidence
Current research is limited to animal studies with no human clinical trials available. Mouse studies using 500 mg/kg of leaf extract showed antidepressant-like behavior in forced swimming tests. Diabetic rat studies demonstrated significant reductions in serum glucose levels and increased insulin release with seed extract treatment. The evidence remains preliminary and requires human validation studies to confirm therapeutic potential.
Safety & Interactions
Safety data for Byrsonima crassifolia supplements is extremely limited due to lack of human studies. Potential interactions with diabetes medications could cause hypoglycemia due to glucose-lowering effects observed in animal studies. Concurrent use with antidepressants may theoretically amplify mood-related effects. Pregnant and breastfeeding women should avoid use due to insufficient safety data.
Synergy Stack
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Frequently Asked Questions
What is the recommended dosage of Byrsonima crassifolia?
No established human dosage exists for Byrsonima crassifolia supplements. Animal studies used 500 mg/kg of leaf extract, but human equivalent doses have not been determined. Consult healthcare providers before use.
Can Byrsonima crassifolia help with diabetes?
Preliminary rat studies showed reduced serum glucose and increased insulin release with seed extract. However, no human trials exist to confirm diabetes benefits or establish safety in diabetic patients.
Is Byrsonima crassifolia the same as nance fruit?
Yes, Byrsonima crassifolia is commonly known as nance or golden spoon fruit. The traditional fruit consumption differs significantly from concentrated leaf and seed extracts used in research studies.
Does Byrsonima crassifolia interact with antidepressants?
Potential interactions are unknown due to lack of human studies. Since mouse studies showed mood-affecting properties, theoretical interactions with antidepressant medications could occur and require medical supervision.
Where can I buy Byrsonima crassifolia supplements?
Byrsonima crassifolia supplements are rarely available commercially due to limited research and unclear safety profiles. Most products would be found through specialized Amazonian plant extract suppliers with questionable standardization.
What does the research say about Byrsonima crassifolia's effectiveness for mood support?
Preliminary evidence from mouse studies shows that Byrsonima crassifolia leaf extract (500 mg/kg) demonstrated antidepressant-like effects in forced swimming tests, suggesting potential mood-supporting properties. However, these are early-stage animal studies and human clinical trials are needed to confirm efficacy and determine appropriate dosing for mental well-being support. Current evidence is considered preliminary and should not be considered conclusive proof of benefit in humans.
Is Byrsonima crassifolia safe for children, pregnant women, or elderly individuals?
Safety data specific to Byrsonima crassifolia in children, pregnant women, and elderly populations is limited and not well-established in clinical research. Most traditional use and current supplementation occurs in adult populations, and you should consult a healthcare provider before giving this supplement to children or using it during pregnancy or breastfeeding. Elderly individuals should similarly seek professional medical guidance regarding safety and potential interactions with existing conditions or medications.
Which part of the Byrsonima crassifolia plant is most beneficial—the leaves, seeds, or fruit?
Different parts of Byrsonima crassifolia appear to have different bioactive compounds and potential benefits: leaf extract has shown antidepressant-like effects in studies, while seed extract demonstrated blood sugar-regulating effects and contains birsonimadiol, a compound with anti-inflammatory properties. The fruit itself is edible and consumed traditionally, but most concentrated supplemental research has focused on leaf and seed extracts at specific dosages (500 mg/kg and 200–400 mg/kg respectively in animal studies). The optimal part depends on your intended health goal, though human evidence comparing these forms is currently limited.
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