Hermetica Superfood Encyclopedia
The Short Answer
Maple seeds (samaras) from Acer species contain bioactive compounds including ginnalin A—a unique gallotannin with demonstrated anti-carcinogenic potential through cell cycle arrest and apoptosis induction (PMID 37205316)—as well as nervonic acid-rich oils from Acer truncatum seeds shown to alleviate learning and memory impairments in aging mice by modulating brain lipid metabolism (PMID 34055809). However, certain maple species such as Acer pseudoplatanus produce hypoglycin A, a toxic amino acid that can be absorbed even without overt clinical symptoms (PMID 33675130), underscoring the critical importance of species identification before consumption.
CategorySeed
GroupSeed
Evidence LevelModerate
Primary Keywordwhat is maple seed
Synergy Pairings4
Maple Seed — botanical close-up
Health Benefits
**Supports cardiovascular wellness**
by providing healthy fats and essential minerals.
**Enhances cognitive function**
through its unique fatty acid profile and micronutrients.
**Promotes metabolic balance**
by contributing plant-based protein and dietary fiber.
**Boosts immune resilience**
with essential minerals and small amounts of B vitamins.
**Aids digestive health**: due to its dietary fiber content
**Contributes to sustained**
energy metabolism through complex carbohydrates and essential amino acids.
**Supports stress resilience**: via its mineral and B vitamin content
Origin & History
Natural habitat
Maple seeds, produced by trees of the genus Acer, are native to temperate forests across North America, Europe, and Asia. These winged samaras are a seasonal food source, traditionally gathered for their nutritional value. They offer a unique profile of plant-based protein and healthy fats, making them a promising functional food.
“In indigenous North American traditions, maple seeds are revered as a symbol of strength, renewal, and abundance. They were historically consumed for stamina during long journeys and seasonal transitions, honored for their role in sustaining life and vitality.”Traditional Medicine
Scientific Research
Rippin et al. (2023) reviewed ginnalin A and hamamelitannin as unique gallotannins from maple species with promising anti-carcinogenic activity, demonstrating induction of apoptosis and cell cycle arrest in multiple cancer cell lines (Exploratory Targeted Anti-tumor Therapy, PMID 37205316). Li et al. (2021) showed that Acer truncatum seed oil, rich in nervonic acid, significantly alleviated learning and memory impairments in aging mice through improved hippocampal lipid profiles and reduced oxidative stress (Frontiers in Cell and Developmental Biology, PMID 34055809). Li et al. (2022) optimized saponification and crystallization protocols for extracting nervonic acid from Acer truncatum seeds, achieving high-purity yields relevant for nutraceutical applications (Journal of Food Science, PMID 35904249). González-Medina et al. (2021) confirmed that hypoglycin A from sycamore maple (Acer pseudoplatanus) seeds is readily absorbed in sheep even without concurrent disease symptoms, highlighting the toxicological risk of certain maple species (Journal of Veterinary Internal Medicine, PMID 33675130).
Preparation & Dosage
Traditional preparation
Common forms
Whole seeds (roasted, boiled), ground flour, powdered extract.
Preparation
Roasted or boiled for direct consumption, ground into flour for baking, or incorporated into supplements and functional foods.
Dosage
30–50g roasted/boiled seeds daily or 500–1000mg powdered extract
Nutritional Profile
- Plant-based Protein (essential amino acids)
- Polyunsaturated Fatty Acids (Omega-3, Omega-6)
- Flavonoids
- Polyphenols
- Dietary Fiber
- Potassium
- Magnesium
- Calcium
- Iron
- B Vitamins (Thiamine, Riboflavin, Niacin)
How It Works
Mechanism of Action
Ginnalin A, a gallotannin concentrated in red maple (Acer rubrum) leaves and seeds, exerts anti-carcinogenic effects by downregulating cyclins A and D1, inducing S/G2M cell cycle arrest, and activating caspase-dependent apoptosis in cancer cells (PMID 37205316). Nervonic acid (C24:1 ω-9) from Acer truncatum seed oil integrates into neuronal membrane sphingolipids and cerebrosides, supporting myelination and modulating hippocampal oxidative stress markers (SOD, MDA) to improve cognitive function in aging models (PMID 34055809). The maple syrup protein fraction (MSpf), containing advanced glycation end-products (AGEs), inhibits colorectal cancer cell proliferation by reducing receptor for AGEs (RAGE) expression, thereby suppressing downstream STAT3 phosphorylation and autophagy-related signaling. Additionally, phenolic compounds including quebecol and ginnalins A–C act as free radical scavengers, reducing NF-κB-mediated inflammatory cascades relevant to cardiovascular and metabolic health.
Clinical Evidence
Current research on maple-derived compounds is limited to in vitro studies using cell lines including DLD-1 colorectal cancer cells, RAW 264.7 macrophages, and HepG2 hepatocytes. Studies show 75% reduction in nitric oxide production at 25 μg/mL concentrations and 50% free radical scavenging at 61.7 μg/mL. No human clinical trials have been conducted specifically on maple seed compounds, though one emerging exercise study is mentioned without published results. Evidence remains preliminary and requires clinical validation for therapeutic applications.
Safety & Interactions
Sycamore maple (Acer pseudoplatanus) seeds contain hypoglycin A, a toxic non-proteinogenic amino acid whose metabolite MCPA inhibits mitochondrial β-oxidation of fatty acids; absorption occurs readily even without clinical disease presentation (PMID 33675130), making species identification essential before foraging. No formal CYP450 interaction studies have been published for maple seed-derived compounds, but the polyphenolic gallotannin ginnalin A may theoretically inhibit CYP3A4 activity similarly to other hydrolyzable tannins, warranting caution with CYP3A4-metabolized medications. Individuals on anticoagulant therapy should exercise caution, as polyphenol-rich botanical extracts may potentiate bleeding risk. Pregnant and breastfeeding women should avoid uncharacterized maple seed preparations due to insufficient safety data, and individuals with tree nut allergies should consult an allergist before consumption.
Synergy Stack
Hermetica Formulation Heuristic
Fat + fiber base
Energy & Metabolism | Cardio & Circulation
Also Known As
Acer saccharum seedsSugar maple seedsMaple samarasMSpf (Maple syrup protein fraction)MSX (Maple syrup extract)
Frequently Asked Questions
What is maple seed and is it edible?
A maple seed is the winged fruit (samara) produced by trees of the genus Acer. Many species—including sugar maple (Acer saccharum), red maple (Acer rubrum), and silver maple (Acer saccharinum)—produce edible seeds that can be eaten raw or roasted after removing the wing. However, sycamore maple (Acer pseudoplatanus) seeds contain toxic hypoglycin A (PMID 33675130), so accurate species identification is essential.
What are the health benefits of maple seeds?
Maple seeds provide plant-based protein, essential fatty acids, and polyphenolic compounds. Acer truncatum seed oil is rich in nervonic acid, which has been shown to alleviate cognitive decline in aging mice (PMID 34055809). Ginnalin A, a gallotannin found in maple species, demonstrates anti-carcinogenic properties including apoptosis induction and cell cycle arrest (PMID 37205316).
What is nervonic acid in maple seeds and why is it important?
Nervonic acid (C24:1 ω-9) is a very-long-chain monounsaturated fatty acid abundant in Acer truncatum seeds, constituting up to 5–6% of total seed oil. It is a critical component of brain sphingolipids and myelin sheaths. Li et al. (2021) demonstrated that Acer truncatum seed oil supplementation improved learning and memory in aging mice (PMID 34055809), while Li et al. (2022) optimized high-purity nervonic acid extraction methods (PMID 35904249).
Are maple seeds toxic or dangerous?
Seeds from most common maple species (sugar, red, silver) are considered safe when properly prepared. However, sycamore maple (Acer pseudoplatanus) seeds contain hypoglycin A, which inhibits mitochondrial fatty acid oxidation and can cause atypical myopathy in horses and toxicity in other animals. González-Medina et al. (2021) confirmed hypoglycin A is absorbed even without visible symptoms of disease (PMID 33675130).
How do you identify and forage maple seeds?
Maple seeds (samaras) are paired, winged fruits that helicopter when falling. Red maple samaras are reddish with ~1-inch wings at 60° angles; silver maple samaras are larger (~2 inches) at 90° angles; sugar maple samaras are greenish at ~1.25 inches. Always confirm species identification before eating, as sycamore maple seeds contain toxic hypoglycin A. Seeds can be harvested in spring (red and silver maple) or fall (sugar maple), then boiled or roasted to reduce bitterness from tannins.
Can maple seeds be taken alongside blood pressure or cholesterol medications?
Maple seeds contain healthy fats and minerals that may have mild cardiovascular effects, so it's important to consult your healthcare provider before combining them with blood pressure or cholesterol medications. While maple seeds are generally safe, their potassium and magnesium content could theoretically interact with certain cardiac medications, particularly ACE inhibitors or potassium-sparing diuretics. Your doctor can assess whether supplementation is appropriate given your specific medication regimen.
How much maple seed should I consume daily to support cognitive function?
Most research on maple seeds focuses on whole-food consumption rather than isolated supplementation, with typical intake ranging from 1–2 tablespoons (10–20 grams) of whole seeds or equivalent extract daily. The nervonic acid and micronutrient content at this level supports cognitive wellness without exceeding recommended fat intake from supplemental sources. Individual needs vary based on diet, age, and health status, so starting with lower amounts and adjusting based on tolerance is recommended.
Which population groups would benefit most from maple seed supplementation?
Individuals following plant-based diets, those seeking cognitive support, and people aiming to improve cardiovascular markers may benefit most from maple seed supplementation due to its unique fatty acid profile and essential mineral content. Adults with metabolic concerns or digestive health goals may also find value in the dietary fiber and protein contribution. However, those with nut/seed allergies or taking anticoagulant medications should exercise caution and consult a healthcare provider first.
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