What’s the Best Chlorella Supplement in 2024?

Welcome to my detailed guide to the best Chlorella supplements available in 2024.

In this guide, I will introduce you to the top Chlorella supplement brands that are worth considering. I’ve spent several months carefully researching what’s on offer based on factors such as quality, purity, nutrient content, customer reviews, and overall value for money.

As a practising nutritionist, chlorella is a supplement I value for my clients, but I am also mindful of what poor-quality products are out there in the marketplace. You need to choose wisely.

best chlorella supplement

Best Chlorella Supplements: My Verdict

After conducting extensive research and evaluations of various Chlorella supplements on the market, I have compiled a list of the best Chlorella supplements for 2024 based on several factors, including quality, purity, nutrient content, and customer reviews. Here are my top picks:

  1. Phytality Chlorella: Best Overall Chlorella Supplement – Phytality is the only fermented product on the market that is grown in a closed-loop system, making it the purest and most bio-available chlorella supplement available. This premium product is free from fillers, additives, and preservatives and has received excellent customer reviews. Fermentation means its cell wall is softened without allowing the inside to oxidise.
  2. SunChlorella Tablets: Best Pulverised Chlorella – SunChlorella is the largest chlorella brand in the world, and its pulverised tablets are popular among customers. However, this product’s lipids may oxidise as it is grown in open ponds.
  3. Naturya Chlorella Powder: This Chlorella powder is sourced from organic Chlorella, which is a positive, but it is grown in open ponds and milled, which increases oxidisation. Nonetheless, it is a good option for those looking for a high-quality and organic chlorella supplement.
  4. Algomed Chlorella: Best Cracked Chlorella – Algomed is an excellent chlorella supplement that is grown in a European bioreactor by top experts. While it is not broken down or fermented, it is of high quality and purity. However, it may not be easy to obtain.
  5. Dr Mercola Fermented Chlorella Capsules – Dr Mercola’s Chlorella supplement is a well-known brand from the American health influencer. However, since it is grown in open ponds, we rank it lower than other brands.
  6. Raw Living Chlorella – This is an affordable chlorella supplement from Japan that is spray-dried and with a cracked-cell wall. It has been independently tested for heavy metals and is a good choice for those on a budget.
BrandPricePurityDigestibilitySustainabilityMethod of CultivationBuy
Phytality Chlorella£21.85HighestFermentedHighest, Non-GMOBioreactorBuy Direct from us
SunChlorella Tablets£32.99Non-GMOPulverisedSustainableOutdoor PondsBuy from Amazon
Naturya Chlorella Powder£22.99OrganicMilledSustainableOutdoor PondsBuy from Amazon
Algomed Chlorella£55.50HighUncrackedSustainableBioreactorNA
Dr. Mercola Fermented Chlorella Capsules£21.97OrganicFermentedSustainableOutdoor PondsBuy from Amazon
Raw Living Chlorella£12.99OrganicCrackedSustainableOutdoor PondsNA

Note: Prices are taken from each brand’s website as of 2024 and may vary over time

6 Best Chlorella Supplements for 2024

Phytality Chlorella Powder or Capsules

I confidently recommend Phytality fermented Chlorella Tablets as the top Chlorella supplement for 2024.

Here’s why:

Phytality Chlorella Tablets are made from European-grown Chlorella that is sustainably produced and fermented using a closed fermentation process for optimal digestibility. This is a huge difference from someone growing chlorella in an open pond.

Phytality’s unique process results in a product with high purity, free from heavy metals, and with a softer cell wall, allowing for improved absorption of essential nutrients like beta-glucans and Chlorella Growth Factor (CGF).

Fermented chlorella is, in my view, the best way to make the hard cell wall digestible, and unlock the nutrients, without rendering the lipids liable to oxidization (as occurs with cracked, pulverised or milled)

In addition to their exceptional quality and purity, Phytality Chlorella Tablets are vegan-certified and undergo rigorous testing to ensure they are free from oxidized lipids.

Overall, Phytality Chlorella Tablets offer an exceptional combination of purity, quality, and digestibility. This brand is making the best quality microalgae in the world.

Whether you prefer tablets or powder, Phytality Chlorella is the clear choice

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Sunchlorella Pulverised Chlorella

Sun Chlorella has established itself as a popular brand for Chlorella supplements, using a proprietary process called DYNO®MILL to make its product highly digestible and nutrient-dense. The chlorella pyrenoidosa used in their supplements is grown in Taiwan under strict conditions, with pure mountain spring water and full sunlight exposure to increase its chlorophyll and Chlorella Growth Factor (CGF) content. To our mind, the use of open ponds puts it way further down the list, in terms of quality, than Phytality, but nevertheless, it’s a well-established brand with a lot of advocates.

Sun Chlorella carefully preserves its Chlorella’s quality and nutrient content through spray-drying with hot air before pulverizing it using the DYNO®MILL process. This process pulverizes 90% of the Chlorella cell wall, enhancing its digestibility while maintaining its nutritional profile.

Sun Chlorella’s Chlorella supplements are manufactured in Japan, adhering to strict Good Manufacturing Practice (GMP) standards. They are certified by respected third-party organizations such as NSF, Informed Choice, and Informed Sport, ensuring the quality and purity of the product.

Sun Chlorella’s Chlorella supplements come in convenient 6g sachets and are priced at £68.95 for a pack of 30. If you’re looking for a high-quality Chlorella supplement that’s easy to digest and packed with essential nutrients, Sun Chlorella is a great option to consider.

Naturya Milled Chlorella Powder

Naturya’s Chlorella supplement is a premium, carefully sourced and processed product to ensure maximum purity and nutrient availability. The supplement is sourced from a pristine island in the South China Sea, where freshwater ponds draw water from deep in the ground, and the chlorella is grown and harvested using natural sunlight and gentle mixing techniques.

To ensure the highest possible purity, the water used to grow the chlorella is carefully filtered to prevent contamination from agricultural runoff. The island is protected by a dense surrounding forest, further reducing the risk of contamination.

Naturya’s chlorella cells are meticulously sieved from the water using fine mesh screens, capturing the delicate cells. The cells are then hand-washed and fast-dried to preserve maximum nutrients. The resulting powder is then milled to break down the insoluble chlorella cell walls, making maximum nutrients accessible during digestion.

Naturya’s commitment to sourcing the highest quality chlorella from a pristine environment and processing the supplement with attention to detail ensures that customers receive a premium product. If you’re looking for a high-quality chlorella supplement with maximum nutrient availability, Naturya’s Chlorella supplement is an excellent choice.

Price: 200g pouch is £13

Right now, they are actually out of pure chlorella, but you can buy it as part of their excellent supergreens mix here:

Algomed Chlorella: Best Raw Chlorella (cell-wall intact)

Algomed Chlorella is a premium Chlorella supplement that stands out for its unique cultivation method and high-quality standards. Unlike other brands, Algomed does not break up the cell walls of their Chlorella, as they believe the digestibility of the Chlorella is not significantly increased by doing so. Instead, they focus on using a drying process and species of Chlorella that maximizes digestibility.

Algomed Chlorella is naturally grown in Germany using a unique cultivation method that involves continuous quality checks to ensure exceptional product quality. Their Chlorella is regularly tested for harmful substances such as pesticide residues, aflatoxins, microcystins, and heavy metals to ensure purity.

Algomed Chlorella is an excellent choice for those seeking a Chlorella supplement that is rich in nutrients and high in quality. It contains 100 μg of total vitamin B12 per 100 g of product. However, Algomed Chlorella is rated lower than Phytality due to the fact they leave the cell wall intact. Additionally, it is not as widely available as other brands and requires a direct purchase via their website.

Price: £55.50 for 350 grams

Dr Mercola: Runner up Best Fermented Chlorella Supplement

Dr Mercola’s Chlorella supplement is a top-quality product that provides a rich source of nutrients, including vitamins, minerals, antioxidants, and essential amino acids. This product is grown in outdoor pools under the sunlight in Taiwan, which helps maximize chlorophyll content.

Dr Mercola’s Chlorella supplement is processed using a method that breaks down Chlorella’s cell wall, allowing for better absorption of its nutrients. The supplement also contains a Trace Mineral Complex from two varieties of marine red algae, harvested from the North Atlantic seabed, providing essential trace minerals.

The product is rigorously tested for purity and potency, ensuring that it meets high standards of quality. It is certified organic, non-GMO, and vegan, making it a safe and healthy supplement for a variety of dietary needs.

While Dr. Mercola’s Chlorella supplement is grown in open pools, it is a high-quality, sustainably grown and rigorously tested product. Its unique production process ensures maximum bioavailability and digestibility of the nutrients.

Overall, Dr. Mercola’s Chlorella supplement is an excellent choice for those seeking a high-quality Chlorella supplement that provides a rich source of nutrients and is rigorously tested for purity and potency. The price of £21.95 for 450 tablets (approx 450g) also makes it a cost-effective option.

Raw Living: Best ‘Affordable’ Chlorella Supplement

Raw Living Chlorella is a premium organic supplement that offers a wide range of health benefits. It contains single-celled blue-green algae, a rich protein source and a unique substance known as chlorella growth factor (CGF). The supplement undergoes a specialized cracked-cell processing system, ensuring high bioavailability and digestibility.

Unlike other chlorella products, Raw Living Chlorella uses a temperature-sensitive spray-drying system that preserves the delicate composition of the algae. The chlorella’s cell wall is ruptured through this process, making it 85% digestible and nutritionally available to the body without being pulverized and risking damage to the nutritious contents.

Raw Living Chlorella is free of toxic residues and has no chemical additives, making it a pure and potent supplement. It is grown without agrichemicals or pesticides, ensuring quality and purity. The chlorella undergoes rigorous testing to ensure its potency and purity, making it a reliable and effective source of nutrition.

Raw Living Chlorella is an excellent choice if you are looking for an organic supplement to support your overall health. Its unique processing system, rigorous testing, and purity make it a reliable and effective source of nutrition. At £12.99 for 250 grams, it’s also a very affordable option.

How Did I Rate the Best Chlorella Supplements?

There’s little doubt chlorella is one of the most exciting forms of nutrition on the planet today. Packed with essential vitamins, minerals, and other nutrients, it is a complete protein source and is known to be rich in antioxidants, which may help protect the body against free radical damage 1Safi, C., Zebib, B., Merah, O., Pontalier, P. Y., & Vaca-Garcia, C. (2014). Morphology, composition, production, processing and applications of Chlorella vulgaris: A review. Renewable and Sustainable Energy Reviews35, 265-278.

But what’s less understood is just how different the supplements are in the marketplace and what judicious shoppers should look for. As a nutritionist, this is an area I’m really passionate about.

Most people don’t realise that many supplements with very pretty packaging are grown in open ponds. Based on the potential for contamination, this isn’t something you want when growing microalgae as it opens the environment up to potential contaminants from rainwater or carried in the wind.

Secondly, there’s the question of digestibility. When talking about the hardest cell wall in the entire plant kingdom, I’m not at all convinced that simply leaving it as it naturally occurs is the right choice. Fermentation is the optimum choice, while pulverisation, milling or cracking come second.

How I Ranked the Best Chlorella Supplements for 2024

When ranking the best chlorella supplements, we took into consideration several factors, including production methods, transparency of information, independent testing, broken cell wall or not, user reviews, price, taste, and commitment to sustainability.

  • Production Methods: We looked for brands that use sustainable and ethical production methods that minimize the environmental impact and ensure high-quality products.
  • Transparency of Information: We favored brands that are transparent about their production process and sourcing of ingredients, providing detailed information about the product’s purity, quality, and nutritional content.
  • Independent Testing: We gave preference to brands that regularly undergo independent testing to ensure the safety, purity, and quality of their products.
  • Broken Cell Wall or Not: We considered the efficacy and digestibility of chlorella supplements and preferred brands that use a process to break the cell wall of chlorella to make it more bioavailable.
  • User Reviews: We took into account user reviews and ratings of chlorella supplements to evaluate their efficacy and overall customer satisfaction.
  • Price: We assessed the value of each product in relation to its price and compared it with other brands in the market.
  • Taste: We also evaluated the taste and texture of chlorella supplements to ensure that they are palatable and easy to consume.
  • Commitment to Sustainability: We favoured brands that prioritize sustainability in their production methods and packaging, using eco-friendly materials and reducing waste

Science-Backed Health Benefits of Chlorella

Chlorella is a type of green algae that is rich in nutrients and has been shown to provide a range of potential health benefits. Here are some of the science-backed health benefits of chlorella:

  1. Rich in Nutrients: Chlorella is a rich source of vitamins, minerals, and antioxidants, including vitamin B12, iron, and beta-carotene. It also contains a high amount of plant-based protein, making it an excellent addition to vegetarian and vegan diets.
  2. May Improve Cholesterol Levels: Studies have suggested that chlorella supplements may help to lower cholesterol levels, particularly LDL or “bad” cholesterol. This may be due to certain compounds in chlorella that help bind to cholesterol and remove it from the body.
  3. May Support Immune Function: Some research has suggested that chlorella may have immune-boosting properties. One study found that chlorella supplements increased the production of antibodies in healthy individuals, indicating a potential benefit to immune function.
  4. May Aid in Detoxification: Chlorella has been shown to have potential detoxifying effects on the body. It may help remove heavy metals and other toxins from the body by binding them and facilitating their elimination.
  5. May Improve Skin Health: Chlorella is rich in antioxidants and other nutrients that are beneficial for skin health. Some studies have suggested that chlorella may help

Comparing chlorella tablets vs powder: which is better?

When it comes to choosing a chlorella supplement, there are two main options: tablets and powder. Both forms have their pros and cons, and it ultimately comes down to personal preference and lifestyle.

Tablets are a convenient option for those who are always on the go and don’t have time to mix and measure. They are easy to take and can be consumed quickly without the need for any preparation. Tablets also have a longer shelf life than powders, making them ideal for those who don’t consume chlorella on a daily basis. However, tablets may contain fillers and additives to help them maintain their shape, which can be a downside for those who prefer a purer supplement.

On the other hand, Powdered chlorella can be easily added to smoothies, juices, or even water, making it a versatile option for those who enjoy experimenting with different recipes. Powders are also a more cost-effective option, as they often come in larger quantities and can be purchased in bulk. However, powders can be messy and require more preparation time, which may not be suitable for those with a busy lifestyle.

Chlorella Faqs

Can I take chlorella supplements if I have allergies or dietary restrictions?

Are broken cell wall chlorella supplements better than non-broken cell wall chlorella supplements?

Cara Hayes is an experienced natural health practitioner with a Masters in Clinical Nutrition & Dietetics from the University of Sydney. She has been writing for Plankton for Health since 2019 and contributes widely to many well-known health publications.