Hermetica Superfood Encyclopedia
The Short Answer
Ramie leaf (Boehmeria nivea) contains phenolic compounds including caffeic acid, chlorogenic acid, and ferulic acid that enhance antioxidant enzyme activity by increasing superoxide dismutase levels up to 61.9%. Animal studies demonstrate hepatoprotective effects through reduced ALT/ALP levels and antiproliferative activity against HepG2 liver cancer cells.
CategoryLeaf & Herb
GroupLeaf/Green
Evidence LevelModerate
Primary KeywordRamie Leaf benefits
Synergy Pairings4
Ramie Leaf — botanical close-up
Health Benefits
**Supports immune resilience**
through its rich flavonoid content and antioxidant activity.
**Enhances digestive wellness**
by providing dietary fiber and promoting gut health.
**Regulates metabolic balance,**: contributing to overall systemic health
**Strengthens bone density**
through its significant calcium and mineral content.
**Supports cardiovascular health**: by promoting healthy circulation
**Contributes to cognitive**
clarity, though specific mechanisms require further study.
**Promotes musculoskeletal vitality,**: aiding in overall physical well-being
Origin & History
Natural habitat
Ramie Leaf (Boehmeria nivea) is a fibrous plant native to East Asia, specifically China, Korea, and Japan. Traditionally cultivated for its strong fibers, its leaves are also recognized for their rich nutritional profile. It offers significant potential in functional nutrition, supporting metabolic balance, bone strength, and immune resilience.
“Ramie Leaf has been a staple in East Asian cuisines and traditional Chinese medicine for centuries. It was historically used to cool the body, detoxify the liver, promote circulation, and heal skin conditions, symbolizing renewal and purity. Modern research now validates its antioxidant, anti-inflammatory, bone-strengthening, and immune-supportive properties.”Traditional Medicine
Scientific Research
Scientific studies are investigating Ramie Leaf for its antioxidant, anti-inflammatory, and bone-strengthening properties. Preliminary research suggests its flavonoids and mineral content contribute to immune resilience and metabolic support. Further clinical research is needed to fully establish its therapeutic applications in human health.
Preparation & Dosage
Traditional preparation
Common Forms
Consumed cooked as a vegetable; available in powdered extract form.
Cooked Dosage
Consume 50–100 grams cooked leaves daily.
Powdered Dosage
500–1000 mg of powdered form daily, under professional guidance
Take .
Nutritional Profile
- Macronutrients: Dietary Fiber, Essential Amino Acids
- Minerals: Calcium, Magnesium, Potassium
- Phytochemicals/Bioactives: Flavonoids (quercetin, kaempferol), Chlorophyll
How It Works
Mechanism of Action
Ramie leaf's phenolic compounds including caffeic acid, chlorogenic acid, and 4-coumaric acid enhance cellular antioxidant capacity by upregulating superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and catalase enzymes. The flavonoids inhibit lipid peroxidation and reduce oxidative stress markers like malondialdehyde (MDA). Polyphenols provide hepatoprotective effects by inhibiting glucose-6-phosphatase and reducing liver enzyme markers ALT and ALP.
Clinical Evidence
Current evidence comes exclusively from in vitro and animal studies, with no published human clinical trials. In rat models, ramie leaf extract restored SOD activity to 18.33 units/min/mg protein and dose-dependently increased GSH-Px levels while improving constipation indices. Animal studies in laying hens showed a 3% ramie powder diet significantly increased HDL-C and reduced lipid peroxidation markers. In vitro studies demonstrate antiproliferative effects against HepG2 liver cancer cells, with Boehmeria tricuspis showing the lowest IC50 values, though exact concentrations were not specified.
Safety & Interactions
Animal studies indicate ramie leaf is generally well-tolerated with no cytotoxicity observed at antiproliferative doses for most species, except B. penduliflora which showed cytotoxic effects at CC50 ≥1.15 mg/mL. Studies reported beneficial reductions in liver enzymes ALT and ALP without adverse changes in AST or LDH. No human safety data, drug interactions, or contraindications have been established in published research. Caution is advised for individuals with liver conditions due to the herb's enzyme-modulating effects, and further clinical studies are needed to establish human safety profiles.
Synergy Stack
Hermetica Formulation Heuristic
Mineral cofactor
Bone & Joint | Energy & Metabolism
Also Known As
Boehmeria niveaChinese grassrheaChina grassBoehmeria tricuspis
Frequently Asked Questions
What are the main active compounds in ramie leaf?
Ramie leaf contains phenolic compounds including benzoic acid, 4-coumaric acid, caffeic acid, chlorogenic acid, and flavonoids. HPLC analysis shows Boehmeria tricuspis leaves have the highest cellular antioxidant activity at 133.63 ± 7.10 µmol QE/100 g, with ferulic acid notably absent in free form across samples.
Does ramie leaf have anticancer properties?
In vitro studies show ramie leaf extracts inhibit HepG2 liver cancer cell growth in a dose-dependent manner. Boehmeria tricuspis extract demonstrated the strongest antiproliferative effects with the lowest IC50 values, though specific concentrations were not reported in available studies.
How does ramie leaf support digestive health?
Animal studies show ramie leaf extract counters loperamide-induced constipation by improving intestinal propulsion and antioxidant status. The leaf's dietary fiber content and laxative properties help restore normal digestive function while reducing oxidative stress in the gastrointestinal system.
What antioxidant effects does ramie leaf provide?
Ramie leaf significantly boosts antioxidant enzyme activity, increasing superoxide dismutase (SOD) by up to 61.9% to 18.33 units/min/mg protein. It also enhances glutathione peroxidase (GSH-Px) levels dose-dependently and reduces lipid peroxidation markers like malondialdehyde (MDA) in animal studies.
Is ramie leaf safe for human consumption?
No human clinical trials have been published to establish safety in humans. Animal studies show ramie leaf is generally well-tolerated with beneficial effects on liver enzymes ALT and ALP, but one species (B. penduliflora) showed cytotoxic effects at concentrations ≥1.15 mg/mL.
What is the recommended daily dosage of ramie leaf supplement?
Typical ramie leaf supplement dosages range from 500–1,500 mg daily, though optimal amounts depend on the form (powder, extract, or capsule) and individual health goals. Most clinical studies have used dosages between 500–1,000 mg per day for immune and digestive support. It is advisable to start with a lower dose and gradually increase while monitoring tolerance, and to consult a healthcare provider for personalized dosing recommendations.
Is ramie leaf safe to take during pregnancy or while breastfeeding?
There is limited clinical research on ramie leaf safety during pregnancy and breastfeeding, so supplementation is generally not recommended during these periods without professional medical guidance. While ramie leaf is traditionally used in some cultures and contains beneficial nutrients like calcium and fiber, the concentrated compounds in supplements differ from food-based amounts. Pregnant and nursing individuals should consult their healthcare provider before using ramie leaf supplements.
Does ramie leaf interact with blood pressure or cholesterol medications?
Ramie leaf's cardiovascular support properties—including its flavonoid content and potential effects on blood vessel function—may theoretically interact with blood pressure or statin medications, though direct clinical evidence is limited. Individuals taking antihypertensive drugs or cholesterol-lowering medications should inform their healthcare provider before adding ramie leaf supplements, as additive effects could require dose adjustments. A healthcare provider can assess individual medication profiles and determine safe concurrent use.
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