VITALITYbits® Spirulina & Chlorella Tablets spirulina + chlorella 50/50 • energy • plant protein • immunity • digestion & detox
Dealing with ongoing fatigue, low intake of quality protein and looking for a natural way to support immunity, recovery, digestion and everyday detox – all in one? VITALITYbits® Spirulina & Chlorella are 100% pure pressed tablets from spirulina and chlorella in a 50:50 ratio, without fillers, binders or other additives. They bring together the strengths of both algae into a concentrated source of plant protein, B vitamins, minerals, chlorophyll and antioxidants to support energy, immunity, overall vitality and digestive comfort. Suitable for vegans, older adults, active athletes and anyone under long-term physical or mental load.
Why we chose ENERGYbits® for PraveBio.cz
ENERGYbits® is a US brand specialising in 100% pure spirulina and chlorella tablets, with no fillers or unnecessary additives. The algae are grown in outdoor freshwater tanks in Taiwan, in natural sunlight and with triple-filtered mountain spring water, then gently dried at low temperature and pressed into tablets. Every batch comes with a Certificate of Analysis (COA) for heavy metals and other contaminants, and the supplements are certified organic under USDA Organic and Ecocert. Together this gives you a tightly controlled, premium supplement rather than a generic low-grade product.
Pure spirulina and chlorella blend in VITALITYbits® tablets
VITALITYbits® Spirulina + Chlorella is a concentrated whole-food product made from pure freshwater algae, combining blue-green spirulina and green chlorella in an ideal 50:50 ratio. It consists of 100% pressed microalgae with no fillers or other additives; each batch is laboratory-tested for contaminants and heavy metals and is supplied with a Certificate of Analysis (COA).
The product is intended for anyone looking for a reliable daily foundation to support everyday vitality, energy, immunity, and normal physical and mental performance. Spirulina contributes to normal energy-yielding metabolism and performance, while chlorella is valued for digestive comfort and support of the body’s natural cleansing processes.
The usual recommended daily amount for adults is 10–30 tablets per day, depending on individual goals and needs. For children and pets, 2–5 tablets per day are commonly used, according to body weight and age; always adjust the amount individually. During pregnancy, when breastfeeding or if you are taking medication, please consult your doctor before use.
The combination of spirulina and chlorella in a single tablet provides a nutritional spectrum of more than 40 bioactive compounds, including essential amino acids, omega fatty acids, RNA/DNA, glutathione and enzymes such as superoxide dismutase (SOD).
Scientific studies describe the antioxidant and immunomodulatory properties of spirulina and the binding capacity of chlorella for heavy metals, which contributes to its popularity among users who focus on natural support of the body’s cleansing mechanisms.
Did you know?
Even a balanced diet may not always provide every nutrient the body needs. Spirulina and chlorella complement each other:
- Spirulina – a blue-green cyanobacterium with a high content of protein and iron, rich in B-group vitamins. Traditionally used to support energy and vitality.
- Chlorella – a green alga with a high content of chlorophyll and fibre, studied for its nutritional properties and ability to bind certain undesirable substances. In the EnergyBits® range, its cell wall is mechanically cracked for better digestibility.
- Combination of both – brings together the benefits of spirulina and chlorella and complements the spectrum of vitamins, minerals and amino acids.
Sources and references
- Nutritional profile of spirulina and chlorella – review articles on microalgae in human nutrition confirm that both spirulina and chlorella are well-described sources of plant protein, B-group vitamins, minerals and antioxidants. These aspects are summarised, for example, in a review of chlorella as a dietary supplement (Nutrients, 2020) and in an overview of spirulina and brain health (Mar. Drugs, 2021).
- Clinical studies with spirulina – a randomised, double-blind, placebo-controlled study in healthy men investigated the effect of 3 g/day spirulina on markers of mental and physical fatigue and energy expenditure (Int. J. Food Sci. Nutr., 2016). Additional systematic reviews and meta-analyses evaluate the effects of spirulina on lipid profile and other cardiometabolic markers in different populations (Diabetes Metab. Syndr. Obes., 2018).
- Immune response and cardiovascular risk markers with chlorella – an 8-week randomised, placebo-controlled study (5 g/day chlorella) in healthy adults observed changes in NK cell activity and selected cytokines (Nutrition Journal, 2012). Meta-analyses additionally evaluate the impact of chlorella supplementation on cardiovascular risk factors, such as lipid levels and blood pressure (Clin. Nutr., 2018).
The information above is based on peer-reviewed scientific literature on spirulina and chlorella and is intended to provide general background on the topic. It does not constitute advice for diagnosis, treatment or prevention of disease and does not replace an individual consultation with a doctor or nutrition professional.
Suitable for
Warnings
In line with EU legislation, we state:
- Follow the recommended intake; do not exceed it.
- This is a food supplement and is not a substitute for a varied, balanced diet or a healthy lifestyle.
- Pregnant and breastfeeding women should consult their doctor before use.
- If you have a thyroid condition, take medication or live with a chronic illness, seek advice from a healthcare professional before using this product.
- In sensitive individuals, the high chlorophyll content may initially cause mild digestive changes. It is advisable to start with a lower amount.
- Keep out of the reach of children. Store in a dry place away from direct sunlight.
Pravé Bio recommends – what to add
- Magnesium (bisglycinate / malate) - microalgae work well in a morning routine; magnesium in the evening supports recovery, the nervous system and quality sleep.
- Omega-3 (from algae or fish) - a common “foundational” supplement alongside green superfoods – for brain function, inflammatory balance and long-term vitality.
- Vitamin D3 + K2 - a practical way to support immunity and overall resilience that forms a meaningful daily base together with microalgae.
- Probiotics / synbiotics - if digestion or long-term wellbeing is a priority, microalgae and microbiome care complement each other very well.
- Quality electrolytes - useful during sport, hot weather or demanding days – they support hydration and performance, while microalgae provide concentrated nutrients.
- Adaptogens for energy and resilience (e.g. rhodiola / ashwagandha / cordyceps) - build on the stable energy from microalgae and help the body cope with physical and mental stress.
- Fibre (psyllium / acacia fibre) - supports bowel comfort and regularity; together with chlorella in the blend it forms a functional duo for digestion.
- GlyNAC (glycine + NAC) - a biohacking combination that supports glutathione production and antioxidant balance; with microalgae it creates a functional stack for long-term vitality.
Read more on this topic
• Benefits of algae-based supplements • How to approach fatigue and recovery after exertion • Vegan nutrition and important supplements • The role of antioxidants in the diet • Natural support for detoxification
Key benefits of the VITALITYbits® spirulina and chlorella blend
- Whole-food multinutrient in a single tablet – VITALITYbits® naturally provides a broad spectrum of nutrients from whole microalgae, which can simplify a daily routine and partly replace several individual supplements or green blends.
- High protein content with a complete amino-acid profile – 30 tablets provide roughly 5 g of usable amino acids; microalgae are among the most concentrated plant sources of protein.
- Steady energy and focus without stimulants – spirulina is naturally rich in protein and bioactive compounds (such as phycocyanin and SOD) that support normal levels of energy and mental performance, while the product contains no sugar or caffeine.
- Cracked cell-wall chlorella for better utilisation – in the EnergyBits® range, the chlorella cell wall is mechanically cracked using a gentle process so that its nutrients are more accessible and easier to digest.
- Chlorophyll and bioactive compounds for cellular protection – spirulina and chlorella are naturally rich in chlorophyll, phycocyanin, carotenoids and enzymes (such as SOD), which support the body’s antioxidant capacity.
- Freshwater cultivation without iodine – the microalgae are grown in fresh, filtered water and therefore naturally do not contain iodine, which is an important quality and safety parameter for algae-based products.
VITALITYbits® offers a balanced combination of spirulina and chlorella in a clean tablet form.
What are BITS®?
BITS® are purely natural tablets made from 100% freshwater algae – specifically spirulina, chlorella or their combination. They are designed as “bits of food” – in other words, a whole food rather than a conventional supplement.
The algae are grown organically in fresh water under controlled conditions and dried at low temperatures to preserve their vitamins, minerals, antioxidants, enzymes and chlorophyll.
Each tablet naturally contains a high level of plant protein (up to 60%), more than 40 nutrients and no added substances – no sugar, caffeine, fillers or preservatives.
BITS® are ideal for anyone wishing to top up their nutrient intake from a natural source. They support everyday energy, focus, recovery and vitality throughout the day. A few tablets per day are sufficient – depending on the product type, they can be used in the morning, before activity or after exertion.
Types of BITS® we offer
- ENERGYbits® – 100% spirulina for natural energy, focus and stamina.
- RECOVERYbits® – 100% chlorella for regeneration, cleansing support and immune resilience.
- VITALITYbits® – a combination of spirulina and chlorella for comprehensive nutrition and balance.
*BITS® are foods. They are not intended to diagnose, treat or prevent any disease. Use them as part of a varied, balanced diet. If you are considering major changes to your diet, seek advice from a qualified professional where needed.
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This text was prepared by the content team at PraveBio.cz on the basis of information from the manufacturer EnergyBits and our own testing. Final review is carried out by the shop founders; their approach is described on the page About us. Updated on 21 November 2025.
Additional parameters
| Category: | Green food |
|---|---|
| EAN: | Choose variant |
| ? According to the problem: | Immunity, Digestion & detox, Metabolism & blood sugar, Energy & vitality, Brain & Focused |
| Key Feature: | Single-ingredient, Whole-food based, Vegan, Natural-origin, Single origin |
| Size: | 90 g / 250 g |
| Why buy: | With microalgae, the purity of the raw material and control of contaminants are what matter most. EnergyBits® has long upheld a biohacking-level quality standard: microalgae only, no additives, and every batch tested and supported by a COA. |
| Suitable for: | vegan - gluten-free - sugar-free - low-carb |
| Manufacturer: | ENERGYbits Inc., 2665 South Bayshore Drive, Office 1101 Miami, FL 33133, USA |
| Country of origin: | USA |
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ENERGYbits® is a global brand focused on pure spirulina and chlorella tablets, founded by Catharine Arnston after a personal family experience; the search for the most nutritious alkaline foods led her to algae as concentrated “bits of food” with zero compromises. The brand’s mission is to offer single-ingredient nutrition with no sugar, fillers, or additives, with an emphasis on transparency and scientific validation.
The portfolio includes ENERGYbits® (spirulina), RECOVERYbits® (chlorella), BEAUTYbits® (spirulina), and VITALITYbits® (50/50 mix)—all grown on outdoor freshwater farms using triple-filtered spring water and independently tested in the U.S. in an FDA-approved laboratory to confirm purity, safety, and nutritional profile. The result is a convenient, traceable, and sustainable source of micronutrients for energy, recovery, and everyday care.
Algae-based products renowned for:
- Distinct cultivation & testing – outdoor freshwater farms with triple-filtered spring water; every batch is independently tested in the U.S. (FDA-approved lab) for purity and safety.
- Single-ingredient formula – 100% spirulina or chlorella, no fillers, sugar, or additives, pressed into mini-tablets (“bits of food”).
- Sustainability – algae as a whole-food with a low resource footprint; cultivation designed for ecology and efficiency.
- Transparency & recognition – long-term sharing of laboratory tests and recommendations from experts and athletes.
ENERGYbits®
RECOVERYbits®
BEAUTYbits®
VITALITYbits®
Who’s behind the ENERGYbits® brand
ENERGYbits® was founded by Catharine Arnston after her family’s experience with her sister’s breast cancer (2009). While searching for the most alkaline, nutrient-dense foods, she discovered algae (spirulina, chlorella). She built the brand in Boston and developed it from 2010 onward (sources cite 2010–2011). Her mission: to deliver pure, single-ingredient algae in mini-tablets as a convenient source of nutrients for energy, recovery, and longevity.
Arnston holds a BA (Queen’s University) and an MBA (Ivey Business School, Western University); later she returned to study nutrition and gained experience as a health coach focused on algae science, giving talks and appearing on podcasts. At ENERGYbits® she serves as Founder/CEO (often also Chief Scientific Officer) and has long popularized algae as highly concentrated “bits of food.”
Brand Vision
The vision of ENERGYbits® is to make algae a familiar, trusted whole food for everyday energy, recovery, and longevity—helping people feel, look, and live better—naturally.
That’s why the brand focuses on single-ingredient tablets of spirulina and chlorella, along with rigorous transparency and education for both the public and professionals, so the benefits of algae become widely known and easy to use.
The vision also includes safety and sustainability: cultivation in tightly controlled conditions with triple-filtered spring water and two-step testing (first at the grower and then in an independent FDA-approved lab in the U.S.) to verify purity and nutritional profile.
Algae are viewed as a sustainable resource with a low environmental footprint and long-term benefits for people and the planet.
Brand Mission
The mission of ENERGYbits® is to make algae an easy, trustworthy whole food—so it’s “quick and simple” to add safe, clean, nutrient-dense nutrition to everyday life.
The brand wants people to feel, look, and live better—naturally, therefore it emphasizes education, inspiration, and empowerment on how to use algae in practice.
This mission is grounded in integrity and science: single-ingredient algae tablets, free of fillers and additives, grown and processed with a focus on purity, safety, and sustainability—to benefit people and the planet.
ENERGYbits® therefore communicates origin and testing transparently and has long built trust in algae as “bits of whole food.”
What are spirulina and chlorella and what are their benefits
Spirulina is a blue-green cyanobacterium and chlorella is a single-celled green freshwater alga—both are highly nutrient-dense whole-food sources of protein, vitamins, minerals, and pigments (e.g., chlorophyll, phycocyanin) and other bioactive compounds.
Spirulina has traditionally been cultivated and used as a food; its composition (a high proportion of protein and antioxidants) is well described in scientific reviews and FAO materials.
Chlorella is valued especially for its micronutrients and chlorophyll; its effects may be partly influenced by an individual’s gut microbiome.
What benefits can you expect? Scholarly work describes antioxidant and immunomodulatory activity for both spirulina and chlorella and, nutritionally, notable protein along with selected vitamins and minerals. For spirulina, meta-analyses and newer studies examine potential impacts on body composition and certain cardiometabolic markers; results are promising yet overall mixed and require further high-quality research.
For chlorella, studies suggest potential benefits that can vary among individuals (e.g., depending on gut environment). Practically speaking, both algae can serve as easy-to-use, concentrated food/dietary supplements to enrich the diet, but they should not be regarded as medicines.
Differences & safety: Spirulina is a cyanobacterium (often readily digestible in its “natural” form), whereas chlorella has a rigid cell wall that manufacturers typically mechanically disrupt to improve nutrient availability.
For both, quality can be affected by cultivation practices; scientific sources therefore recommend choosing reputable manufacturers and products with independent testing to rule out contamination (e.g., heavy metals, microcystins).
Dietary supplements should be used with regard to individual circumstances and within the European context of supplement safety; when using them or combining them with medications, a professional consultation is advisable.
Certifications and quality at ENERGYbits®
ENERGYbits® certifications and quality are built on batch-by-batch control “from farm to lab report.” The algae are grown outdoors in freshwater tanks fed with triple-filtered spring water by a long-standing grower in Taiwan with international GMP and ISO 9000 quality standards. Each shipment is first tested by the grower and then re-verified in the United States by an independent, FDA-approved laboratory that confirms purity, safety, and nutritional profile; the brand shares these results long-term with physicians and nutrition professionals.
The tablets themselves are single-ingredient (100% spirulina or 100% chlorella, with no fillers, sugar, or additives), and the chlorella’s cell wall is mechanically disrupted using sound vibration—without heat and without the risk of lead contamination associated with the historic “glass bead” method. This enables high safety and preserves bioactive compounds; independent testing for heavy metals and neurotoxins is standard across all product lines.
Why choose ENERGYbits®: quality, purity, verified safety
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Natural benefits of spirulina and chlorella (specifics)
Spirulina and chlorella rank among the most concentrated whole-food sources: they naturally deliver complete plant proteins, chlorophyll, vitamins, minerals, and protective antioxidants (for spirulina, especially phycocyanin). ENERGYbits® offers them as single-ingredient mini-tablets (“bits of nutrition”) without fillers, sugar, or additives—purely 100% spirulina or 100% chlorella that the body readily recognizes as food.
What exactly makes a difference in practice
The tablets are grown in outdoor freshwater tanks supplied with triple-filtered mountain spring water, and every batch is independently tested in the U.S. in an FDA-approved laboratory for purity, safety, and nutritional profile.
Chlorella has its cell wall mechanically disrupted by sound vibration (no heat and no lead risk historically linked to bead methods) to improve nutrient availability, while spirulina serves as an easily digestible source of protein and pigments.
For a balanced intake of both sets of benefits, the brand offers VITALITYbits® (50% spirulina / 50% chlorella).
What sets ENERGYbits® algae apart
The key is controlled cultivation and two-step testing. The algae are grown outdoors in carefully monitored tanks fed with triple-filtered spring water, and every batch is then independently verified in an FDA-approved U.S. laboratory—to confirm purity, safety, and the stated nutritional profile.
The long-standing supplier adheres to international GMP and ISO 9000 standards, improving quality consistency across batches.
For chlorella, ENERGYbits uses gentle cell-wall disruption via sound vibration (no heat and no lead risk associated with historical methods) so nutrients are more available while preserving their bioactivity.
Combined with a single-ingredient formula (spirulina only or chlorella only), this is a highly transparent and sustainable approach that has earned the trust of experts and athletes.
Who are the experts at ENERGYbits®
Catharine Arnston – Founder, CEO & Chief Scientific Officer
Founder and principal “scientific voice”
- Leads research and education about algae (spirulina, chlorella), appears on hundreds of podcasts, and authors expert-focused materials (e.g., SOD & mitochondria).
- Education as listed in company materials: BA, MBA, PhD; also a board-certified health coach. Role: product strategy leadership, scientific content, and public education.
Internal Nutritionist (Team Nutritionist)
- ENERGYbits provides access to a team nutrition specialist for partners/affiliates (product guidance, dosing, education).
- This is an internal role delivering professional support and materials.
Collaborating experts (external guests)
- Andrea Donsky — nutritionist & menopause researcher (external collaboration)
- A nutritionist and menopause researcher featured by ENERGYbits in interviews and educational content about spirulina and chlorella (perimenopause/menopause). She is not part of the internal team, but a recurring expert guest and collaborating voice.
- Dr. Steven Gundry — physician and podcaster (external appearance)
- A retired cardiothoracic surgeon and author who hosted an educational episode with ENERGYbits on superfoods and algae. Not an internal advisor, but a prominent expert platform where the brand presented its data and arguments.
- Dave Asprey — “The Human Upgrade” (external appearance)
- The Bulletproof founder and podcast host whose episode with Catharine Arnston covered algae, mitochondrial health, and longevity. Again, publicity and education rather than membership in the internal team.
ENERGYbits® is led by Catharine Arnston; the tablets are single-ingredient (100% spirulina or 100% chlorella) with no fillers, sugar, or additives. The algae are cultivated in Taiwan in outdoor freshwater tanks with triple-filtered spring water, and every batch undergoes two-step testing, including verification in the USA by an FDA-approved laboratory.
For chlorella, a gentle cell-wall disruption via sound vibration is used (no heat/no glass beads) to improve nutrient availability.
The core idea of ENERGYbits® is to provide pure, single-ingredient spirulina and chlorella tablets as an easy-to-use whole food, with transparently laboratory-verified purity and safety.
See for yourself.
Who ENERGYbits® products are for
Athletes
Keto/low-carb
Biohackers
Vegans
Families
ENERGYbits® brand commitments
Quality & authenticity
Product sustainability
Supporting customer health
Transparent origin
Innovation in development
