Hermetica Superfood Encyclopedia
The Short Answer
Cloudberry (Rubus chamaemorus) contains high concentrations of ellagitannins, particularly sanguiin H-6 and lambertianin C, which inhibit bacterial cell adhesion and suppress NF-κB inflammatory pathways. The berry's compounds demonstrate antimicrobial effects at 1 mg/mL concentrations while reducing cytokines IL-6 and TNF-α in activated macrophages.
CategoryFruit
GroupBerry
Evidence LevelStrong
Primary Keywordwhat is Cloudberry
Synergy Pairings4
Cloudberry — botanical close-up
Health Benefits
Delivers potent antioxidant protection via vitamin C, ellagic acid, and carotenoids, combating oxidative stress.
Enhances immune resilience through high vitamin C levels, stimulating immune cell activity.
Supports digestive health with dietary fiber, improving bowel regularity and gut flora balance.
Promotes skin health by stimulating collagen production and protecting against UV-related aging.
Reduces inflammation through polyphenols and bioactive compounds, benefiting joint and gut health.
Aids cardiovascular health by improving circulation and regulating blood pressure.
Protects vision with lutein and zeaxanthin, safeguarding the retina and supporting eye longevity.
Origin & History
Natural habitat
Cloudberry (Rubus chamaemorus) is a golden-hued berry native to the Arctic and subarctic regions, including Scandinavia, Russia, Canada, and Alaska. It thrives in bogs, marshes, and wet meadows with acidic soils across the Arctic tundra and boreal forests. Revered for its rarity and potent nutrition, it is a valuable superfood in functional nutrition.
“For centuries, Cloudberries have been revered by Indigenous Arctic peoples, including Sámi and Inuit communities, and in Nordic traditions. They were foraged for nourishment and vitality during harsh winters, valued for their high vitamin C content to prevent scurvy, and used in healing balms, tonics, and rituals for immune support, skin protection, and overall resilience.”Traditional Medicine
Scientific Research
Scientific studies, including in vitro, animal, and compositional analyses, consistently support Cloudberry's potent antioxidant, anti-inflammatory, and immune-enhancing properties. Research highlights the benefits of its vitamin C, ellagic acid, and carotenoid content for skin, cardiovascular, and vision health. While promising, more human clinical trials are needed to fully validate these broad health claims.
Preparation & Dosage
Traditional preparation
General
Common forms include fresh berries, preserves, dried leaves for tea, or standardized extracts.
Culinary uses
Eaten fresh, made into jams, syrups, desserts, or sauces.
Traditional uses
Brewed into teas for scurvy prevention, chewed raw, or infused into balms and tonics for immune, respiratory, and skin support.
Dosage (fresh/culinary)
1/4–1/2 cup fresh berries or 2–3 tablespoons preserves daily.
Dosage (tea)
Steep 1–2 teaspoons of dried leaves in hot water for 5–10 minutes; 1–2 cups daily.
Dosage (extract)
200–500 mg extract daily internally
Storage
Refrigerate fresh berries for short-term use; freeze for extended preservation.
Nutritional Profile
- Dietary Fiber
- Essential Fatty Acids (trace amounts)
- Vitamin C
- Vitamin E
- Potassium, Magnesium
- Ellagic Acid
- Gallic Acid
- Catechins
- Triterpenes (e.g., betulinic acid, ursolic acid)
- Flavonoids (e.g., quercetin, myricetin, kaempferol)
- Carotenoids (e.g., beta-carotene, lutein, zeaxanthin)
- Lignans
- Tannins
- Polysaccharides
- Organic Acids
How It Works
Mechanism of Action
Cloudberry's ellagitannins including sanguiin H-6 and lambertianin C destabilize bacterial cell membranes at 1 mg/mL concentrations while blocking quorum sensing pathways. The compounds suppress inflammatory responses by inhibiting NF-κB signaling and Toll-like receptor 4, reducing production of IL-6, TNF-α, and nitric oxide. Antioxidant activity occurs through Nrf2/ERK-1/2 pathway activation, with leaf extracts showing 750 mg/g gallic acid equivalent potency.
Clinical Evidence
Current evidence derives exclusively from in vitro and animal studies, with no human clinical trials published to date. Laboratory studies show cloudberry extracts inhibited HeLa cervical cancer cells with EC50 of 34 μg/mL GAE, though less potently than raspberry at 21 μg/mL GAE. In high-fat diet mice, cloudberry supplementation prevented upregulation of proinflammatory genes S100a8 and Mrc2 in adipose tissue. While mechanistic data appears promising, human clinical validation remains necessary to establish therapeutic efficacy and optimal dosing parameters.
Safety & Interactions
No specific safety concerns, drug interactions, or contraindications have been documented in available research literature. The phenolic compounds suggest general tolerability based on structural similarity to other berry polyphenols, though high doses may theoretically affect protein binding or enzyme inhibition. Enhanced bioactivity through fermentation and dry fractionation processing showed no noted toxicity in preliminary studies. Pregnant and nursing women should exercise caution due to lack of safety data, and patients on anticoagulant medications should consult healthcare providers given potential interactions with high phenolic content.
Synergy Stack
Hermetica Formulation Heuristic
Polyphenol/antioxidant base
Immune & Inflammation | Skin & Collagen
Also Known As
Rubus chamaemorusbakeappleknotberryknoutberryaqpikchicoutai
Frequently Asked Questions
What makes cloudberry different from other berries nutritionally?
Cloudberry contains unique ellagitannins like sanguiin H-6 and lambertianin C at higher concentrations than most berries. It also provides exceptional vitamin C levels and specialized compounds like galloyl ascorbate that enhance its antimicrobial properties.
How much cloudberry extract was used in scientific studies?
Laboratory studies used cloudberry extract concentrations of 1 mg/mL for antimicrobial testing and achieved cancer cell inhibition at 34 μg/mL GAE. However, these are in vitro concentrations that don't translate directly to human dietary intake recommendations.
Can cloudberry help with digestive inflammation?
Cloudberry's ellagitannins demonstrate anti-inflammatory effects by suppressing NF-κB pathways and reducing inflammatory cytokines in laboratory studies. The compounds also show antimicrobial activity against harmful bacteria, though human digestive studies are needed.
Are there any proven cancer-fighting benefits of cloudberry?
Laboratory studies show cloudberry extracts inhibited HeLa cervical cancer cells with moderate potency (EC50 of 34 μg/mL GAE). The anticarcinogenic effects involve ROS reduction and Nrf2 pathway activation, but human clinical trials are required to establish actual cancer prevention benefits.
What's the best way to preserve cloudberry's health compounds?
Research indicates that fermentation and dry fractionation processing can enhance cloudberry's bioactivity without reducing beneficial compounds. Fresh or properly frozen berries likely retain most ellagitannins and vitamin C, though specific storage studies are limited.
Is cloudberry safe to take with blood thinners or anticoagulant medications?
Cloudberry contains vitamin K and compounds with mild anticoagulant properties, which may theoretically interact with blood thinners like warfarin or aspirin. Individuals taking anticoagulant medications should consult their healthcare provider before supplementing with cloudberry to ensure consistent dosing and monitor for bleeding risk. Consistency in cloudberry intake is more important than complete avoidance, as sudden changes in consumption could affect medication efficacy.
Which form of cloudberry supplement—fresh, freeze-dried, or extract—offers the best bioavailability?
Freeze-dried cloudberry powder and standardized extracts offer superior bioavailability compared to fresh fruit because they concentrate beneficial compounds and remove water content, allowing for easier absorption of ellagic acid and antioxidants. Extract forms standardized for polyphenol or vitamin C content provide more consistent doses than fresh berries, which vary seasonally in nutrient density. Fresh cloudberries retain fiber benefits that processed forms may lack, making the "best" form dependent on your specific health goals.
Can children and elderly individuals safely consume cloudberry supplements?
Cloudberry is generally safe for both children and elderly populations due to its natural fruit origin and lack of known toxins, though children should receive age-appropriate portions based on body weight. Elderly individuals may particularly benefit from cloudberry's high antioxidant and vitamin C content to support immune function and skin health during aging. Those with kidney issues or taking certain medications should consult a healthcare provider, as the fruit's nutrient density may require dose adjustment in vulnerable populations.
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