The beneficial properties of algae have been known for a long time, though initially it was the cosmetics industry that took the greatest interest in them. In recent years, however, as the popularity of nutrient-dense foods sourced from seas, oceans, and freshwater lakes continues to grow, algae have gained increasing recognition as dietary supplements. When properly processed, they can enrich meals with a wealth of valuable nutrients and help balance any diet. This alone is reason enough for chlorella to have become one of the most popular green superfoods on the market.
What Is Chlorella?
Chlorella is a single-celled freshwater green alga that grows naturally in lakes and ponds across East Asia. Its structure is remarkably simple, consisting primarily of a nucleus and large amounts of chlorophyll — the pigment responsible for its intensely deep green colour. It is also from chlorophyll that the alga takes its name. What makes chlorella truly stand out is the fact that it contains more chlorophyll than any other plant on Earth.
Beyond chlorophyll, chlorella delivers an impressive nutritional profile: it is a source of complete protein containing all essential amino acids, as well as vitamins A, C, several B-group vitamins (including folic acid and B12), and nucleic acids. This makes chlorella one of the most nutrient-dense natural foods available — and a popular choice among those seeking to support their body's natural cleansing and regeneration processes. Discover our full range of algae-based products in our greens and superfoods collection.
[tip:Chlorella's cell wall is naturally tough and indigestible. Look for "broken cell wall" chlorella supplements, which have been processed to crack open the cell wall, making the nutrients inside far more bioavailable and easier to absorb.]
Key Properties and Benefits of Chlorella
Detoxification Support
Chlorella is best known as a natural detoxification aid. It is widely regarded as an effective support for the body's cleansing processes, including the function of the liver — the organ primarily responsible for processing and eliminating toxins such as heavy metals, pesticides, and other harmful substances. Chlorella's binding properties may help the body manage exposure to metals including mercury, lead, and arsenic by supporting their elimination through the digestive tract. For those interested in a broader cleansing approach, explore our detox and cleanse supplement range.
An interesting traditional use of chlorella is as a pre-event supplement — some people take it approximately two hours before consuming alcohol, with the aim of supporting nutrient retention and reducing next-day discomfort. It is worth noting, however, that chlorella does not protect the liver from alcohol-related damage and should not be considered a remedy for excessive alcohol consumption.
Immune System Support
Another valuable property of chlorella is its potential to support the immune system. Research suggests that chlorella may stimulate the production of white blood cells and natural killer (NK) cells, which play a central role in the body's defence against infections and viral or bacterial illnesses. Regular supplementation may contribute to a more resilient immune response, particularly during seasonal changes when the body is under greater stress.
Digestive Health and Plant-Based Protein
Chlorella may also serve as a natural support for digestive health. It can be thought of as a prebiotic, as it may help accelerate the growth of beneficial gut bacteria, thereby supporting more efficient digestion and regularity. Additionally, chlorella provides complete protein — meaning it contains all essential amino acids — making it a valuable dietary addition for vegetarians and vegans looking for plant-based protein sources.
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Support During Pregnancy
Chlorella may be of particular interest to expectant mothers. Thanks to its naturally high content of folic acid, vitamin B12, and iron, it may help support healthy blood levels and contribute to normal foetal nervous system development. Some studies also suggest that chlorella supplementation during pregnancy may help support healthy blood pressure and reduce the risk of swelling and protein in the urine — common pregnancy-related concerns. As always, pregnant women should consult their healthcare provider before introducing any new supplement.
Additional Benefits
Chlorella's range of potential benefits is broad. Among the lesser-known properties are its possible contributions to managing the symptoms of fibromyalgia — a chronic condition characterised by persistent muscle and joint pain. Some users report that chlorella supplementation may help ease discomfort associated with this condition, potentially offering a natural complement to conventional approaches. Chlorella has also been traditionally valued for its ability to support fresh breath and reduce body odour, thanks to its internal cleansing properties.
How to Take Chlorella — Dosage Guidelines
Chlorella is available in several convenient forms, each with its own dosage considerations:
- Powder — typically one teaspoon (approximately 3–5 g), taken 1–3 times daily, mixed with water or fruit juice during a meal
- Tablets — follow the manufacturer's recommended dosage printed on the packaging
- Capsules — similarly, follow the manufacturer's instructions for the specific product
It is generally advisable to start with a lower dose and gradually increase it over the first week, as chlorella's detoxifying properties may cause mild digestive adjustment initially. Taking chlorella with meals helps improve absorption and minimise any initial sensitivity.
[note:If you are new to chlorella, start with a smaller dose and increase gradually over 5–7 days. This allows your body to adjust to its natural detoxification effects and reduces the likelihood of mild digestive discomfort.] [products:now-foods-chlorella-1000-mg-60-tablets, pharmovit-chlorella-dark-green-500-mg-500-tablets, biowen-bio-chlorella-powder-120-g, beorganic-chlorella-500-mg-50-capsules, swanson-broken-cell-wall-chlorella-360-tablets, pharmovit-chlorella-dark-green-360-tablets]
Chlorella and Spirulina — A Powerful Combination
Chlorella is often mentioned alongside spirulina — another popular freshwater alga with complementary properties. While chlorella is primarily valued for its detoxifying and chlorophyll-rich profile, spirulina is known for its exceptionally high protein content and anti-inflammatory potential. Together, they represent a powerful combination of algae-based nutrition, offering broad support without contributing to weight gain. In fact, both are low-calorie, nutrient-dense superfoods that fit naturally into any balanced wellness routine.
[warning:While chlorella is generally well tolerated, individuals with autoimmune conditions, those taking blood-thinning medications, or anyone with iodine sensitivity should consult a healthcare professional before supplementing. Pregnant and breastfeeding women should also seek medical advice before use.]
Key Takeaway: Chlorella is a remarkably nutrient-dense freshwater alga that may support the body's natural detoxification processes, immune function, digestive health, and overall wellbeing. Whether taken as a powder, tablet, or capsule, it offers a simple and accessible way to enrich your daily diet with chlorophyll, complete protein, vitamins, and minerals. Start with a low dose, choose broken cell wall products for better absorption, and consider pairing chlorella with spirulina for comprehensive algae-based support.
