Klamath
Nutrient‑dense lake algae for antioxidant and wellbeing support.
Klamath is a nutrient-dense blue‑green microalga (Aphanizomenon Flos Aquae, AFA) harvested exclusively from Lake Klamath in Oregon. Its composition — including complete proteins, bioavailable vitamin B12, essential fatty acids, phycocyanins (AFA‑PC), carotenoids and polysaccharides — underpins its use as a concentrated dietary supplement and nutritional superfood.
Research and consumer reports link Klamath to antioxidant properties, immune‑modulating polysaccharides and the presence of phenylethylamine (PEA), a compound associated with mood and wellbeing, though individual responses vary and effects are not guaranteed. Common formats include dried powder, tablets and capsules; people on anticoagulant therapy should consult a healthcare professional because of Klamath’s high vitamin K content.
At a Glance
Harvested exclusively from a single freshwater lake in Oregon, Klamath is a blue‑green cyanobacterium (Aphanizomenon flos‑aquae) collected at high concentration during seasonal blooms.
It contains complete protein, bioavailable vitamin B12, phycocyanins, carotenoids, essential fatty acids and immunoactive polysaccharides, and is commonly consumed as a nutrient‑dense supplement though individual effects vary.
| Common name | Klamath |
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| Scientific name | Aphanizomenon Flos Aquae |
| Plant family | Nostocaceae |
| Origin | Lake Klamath, Oregon, United States |
| Parts used | Whole algae |
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| Main benefits |
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| Available forms |
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Origin & History
Klamath, the cyanobacterium Aphanizomenon Flos Aquae, grows naturally in a single freshwater lake in Oregon. The lake’s combination of altitude, shallow average depth, abundant sunlight, volcanic sediment and multiple spring sources creates ideal conditions for seasonal surface blooms that are collected at peak growth and processed by drying or, less commonly, freezing.
Since its discovery, Klamath has been harvested and consumed as a concentrated dietary supplement and has attracted scientific attention for its nutritional and bioactive composition. Commercial interest and research expanded beyond local use, leading to standardized harvesting techniques and the availability of Klamath in powders, tablets, capsules and occasional frozen formats for broader distribution.
Composition & Active Compounds
Klamath is a filamentous blue‑green cyanobacterium that appears blue‑green due to high levels of phycocyanin; in supplements it is supplied mainly as a dried whole‑algae powder, tablet or capsule. Its chemical profile includes complete proteins (all 20 amino acids), bioavailable vitamin B12, a range of pigments (phycocyanins, carotenoids, chlorophyll), polysaccharides and essential fatty acids.
The whole dried algae is the primary form used in supplements and supplies concentrated amounts of these active compounds.
- Complete amino acids: all 20 amino acids including the essential ones, high protein content.
- Bioavailable vitamin B12: a plant‑source form of vitamin B12 reported as assimilable.
- AFA‑phycocyanins (AFA‑PC): blue‑green pigment family present in high amounts, noted for antioxidant activity.
- Phenylethylamine (PEA): a neuroactive amine present in Klamath associated with mood and wellbeing in observational reports.
- Carotenoids: including β‑carotene and related pigments, contribute antioxidant activity and color.
- Chlorophyll: green photosynthetic pigment present throughout the algal cells.
- Polysaccharides: complex carbohydrates described in the facts as immunoactive or immune‑modulating.
- Omega‑3 and omega‑6 fatty acids: essential polyunsaturated fatty acids including alpha‑linolenic acid.
- AFA‑fitocromos: non‑carotenoid antioxidant pigments mentioned among Klamath’s antioxidant constituents.
Related Herbs
Properties & Effects
Klamath is traditionally used as a nutrient‑dense blue‑green microalga consumed as a concentrated dietary supplement for general nutritional support and wellbeing.
Research suggests Klamath is notable for antioxidant activity that may help protect cells from oxidative stress.
- Nutritional support: may provide broad nutritional support thanks to its concentrated nutrient profile.
- Antioxidant: may support protection against oxidative damage and contribute to cellular health.
- Immune support: research suggests it may help support immune responsiveness during seasonal or infectious challenges.
- Mood and cognitive support: may promote a sense of wellbeing and support attention and concentration in some people.
- Lipid metabolism support: studies suggest it may help support healthy lipid metabolism and balance of cholesterol and triglycerides.
- Libido support: may help support sexual drive and general libido in some individuals.
Dosage & How to Use
Recommended amounts vary by purpose and by study; follow product directions or consult a healthcare professional for personalized advice.
| Preventive (seasonal change) |
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| Infectious episode (immune support) |
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| Injury recovery |
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| ADHD / Hyperactivity (children) |
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| Wellbeing and concentration |
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| Nutrient supplementation |
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Safety, Side Effects & Contraindications
People taking anticoagulant medications should consult a healthcare professional before using Klamath because the alga has a high vitamin K content that can affect blood clotting and anticoagulant treatment. Individuals with medical conditions or those taking other medications are advised to seek personalized medical advice, since responses to supplements can vary between people.
Klamath is generally described as safe and, according to the provided facts, no side effects have been reported to date; however, individual tolerance may differ and any adverse symptoms should prompt discontinuation and medical review.
- Anticoagulant medications: Consult a healthcare professional before use due to high vitamin K content that can influence blood coagulation and anticoagulant therapy.
May affect blood clotting due to high vitamin K; consult a healthcare professional before use, especially if taking anticoagulant medications or other drugs.