Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 16 Researches
8.1
USERS' SCORE
Good
Based on 8 Reviews
8.2
Supplement Facts
Serving Size: 1 teaspoon (3 g)
Amount Per Serving
%DV
Calories
10
Total Carbohydrate
<1 g
<1%*
Protein
2 g
4%*
Iron
3 mg
20%
Sodium
60 mg
3%
Spirulina (Arthrospira platensis)
3 g
**
Top Medical Research Studies
9
Spirulina shows promise in cancer treatment
We investigated how Spirulina might combat breast cancer using an animal model and a human cell line.
When given to animals, Spirulina increased antioxidants and reduced tumor growth.
It caused changes at the cellular level, promoting cancer cell death and impacting key growth pathways.
The study identified several compounds in Spirulina that target specific proteins, suggesting it could play a significant role in breast cancer treatment.
When given to animals, Spirulina increased antioxidants and reduced tumor growth.
It caused changes at the cellular level, promoting cancer cell death and impacting key growth pathways.
The study identified several compounds in Spirulina that target specific proteins, suggesting it could play a significant role in breast cancer treatment.
Read More
9
Spirulina shows promise in PDT
We explored the efficacy of a new cubic form of spirulina (CSP) in photodynamic therapy (PDT) for cancer treatment. In our study using tongue cancer cells, we compared CSP with its naturally occurring counterpart and another photosensitizer.
All three showed safety for normal cells, but while CSP and the natural form mainly caused apoptotic cell death, the other led to necrosis. We found that CSP is a promising option for cancer PDT, although caution is advised with higher concentrations of the other photosensitizer due to toxicity concerns.
All three showed safety for normal cells, but while CSP and the natural form mainly caused apoptotic cell death, the other led to necrosis. We found that CSP is a promising option for cancer PDT, although caution is advised with higher concentrations of the other photosensitizer due to toxicity concerns.
Read More
7
We examined how C-phycocyanin (C-PC) impacts melanoma, a particularly aggressive skin cancer. In our study, we induced tumors in mice and subsequently treated them with C-PC for three days. We found that treatment boosted key immune cells and showed significant immunomodulatory effects, especially when tumors were present. Importantly, there was no damage to vital organs from the treatment. Our research highlights the potential role of C-PC in enhancing tumor immunity, suggesting promising avenues for future clinical trials in cancer treatment.
Read More
Most Useful Reviews
9
Tumour reduction success
5 people found this helpful
A miracle healing powder! I find anything green hard to consume, but mixing it with food or juice (perhaps chasing it with bacon?) makes it tolerable. The benefits of spirulina are remarkable! My cat had a cancerous tumour on his neck, and after adding this to his food, the tumour seems to have shrunk in just a week! The lump on his neck has vanished! I've heard spirulina can shrink tumours, and the quality of this product must be exceptional to work so quickly. My other cat seems more active after I've given him this as well!
Read More
9
Energy boost
9 people found this helpful
My interest in spirulina was piqued by its unique characteristics. Phycocyanin, found only in spirulina, is reported to inhibit cancer cell growth. Introducing spirulina into my diet has improved my skin's health and metabolic balance. I've chosen Nutrex Hawaii's spirulina for its quality and lack of unpleasant odour. Mixing it in smoothies has been delightful, and I was surprised by the pleasant taste. The first effect I noticed was a surge of energy. I recommend this product; it has seamlessly fit into my diet, and I expect it will benefit others as well.
Read More
9
Disease resistance
2 people found this helpful
Spirulina is a superfood due to its rich plant pigments. It offers numerous benefits, including cancer resistance, heart disease prevention, and regulation of blood sugar levels. Its impressive nutritional profile makes it an essential supplement in the market. I appreciate the diverse advantages spirulina brings to my health.
Read More
Medical Researches
SCIENTIFIC SCORE
Moderately Effective
Based on 16 Researches
8.1
- All Researches
9
We explored the anticancer potential of Spirulina maxima extract, particularly through a new delivery method called nanoemulsion. This approach effectively loaded the extract into tiny nanoparticles, making it more stable.
Our findings showed that this treatment significantly reduced cell viability in cancer cell lines and successfully inhibited tumor growth in mice. Notably, the treatment also normalized liver enzymes and decreased oxidative stress.
While the results are promising, it's essential to note that more research is needed to fully understand its effectiveness in cancer treatment.
Our findings showed that this treatment significantly reduced cell viability in cancer cell lines and successfully inhibited tumor growth in mice. Notably, the treatment also normalized liver enzymes and decreased oxidative stress.
While the results are promising, it's essential to note that more research is needed to fully understand its effectiveness in cancer treatment.
Read More
9
Spirulina aids in testicular protection
We examined the potential of nano Spirulina platensis (NSP) to protect rat testicles from cisplatin-induced damage, a common chemotherapy drug. In a controlled study with groups receiving different treatments, we found that NSP significantly improved sperm quality, hormone levels, and overall testicular health compared to those receiving cisplatin alone. Notably, NSP also enhanced the expression of key genes involved in reproductive health. This suggests that NSP could be a beneficial support for mitigating the harmful effects of cisplatin on fertility.
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9
Spirulina shows promise in cancer treatment
We investigated how Spirulina might combat breast cancer using an animal model and a human cell line.
When given to animals, Spirulina increased antioxidants and reduced tumor growth.
It caused changes at the cellular level, promoting cancer cell death and impacting key growth pathways.
The study identified several compounds in Spirulina that target specific proteins, suggesting it could play a significant role in breast cancer treatment.
When given to animals, Spirulina increased antioxidants and reduced tumor growth.
It caused changes at the cellular level, promoting cancer cell death and impacting key growth pathways.
The study identified several compounds in Spirulina that target specific proteins, suggesting it could play a significant role in breast cancer treatment.
Read More
9
We investigated an innovative system using Spirulina platensis and gold nanoclusters to enhance cancer radiotherapy. This approach is designed to work through several mechanisms, including producing oxygen when exposed to light.
The system effectively generates reactive oxygen species that can attack tumor cells and improve the sensitivity of radiation treatment. In studies with two cancer models, the results showed significant improvements in tumor reduction compared to standard treatments.
While promising, this research is still in its early phases, so further exploration is necessary to fully understand its potential in real-world applications.
The system effectively generates reactive oxygen species that can attack tumor cells and improve the sensitivity of radiation treatment. In studies with two cancer models, the results showed significant improvements in tumor reduction compared to standard treatments.
While promising, this research is still in its early phases, so further exploration is necessary to fully understand its potential in real-world applications.
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9
Spirulina fermentation reduces cancer cell viability
We looked into how fermented Spirulina, produced under optimized conditions with specific bacteria and yeast, affects cancer treatment. In our testing, a unique production mode significantly reduced the viability of colon cancer cells by up to 72% without harming normal cell function.
This indicates that fermented Spirulina has potential as a supplementary food source with beneficial properties, particularly for cancer support. However, more research is needed to truly understand its bioactive compounds and their impact on human health.
This indicates that fermented Spirulina has potential as a supplementary food source with beneficial properties, particularly for cancer support. However, more research is needed to truly understand its bioactive compounds and their impact on human health.
Read More
User Reviews
USERS' SCORE
Good
Based on 8 Reviews
8.2
- All Reviews
- Positive Reviews
- Negative Reviews
9
Tumour reduction success
5 people found this helpful
A miracle healing powder! I find anything green hard to consume, but mixing it with food or juice (perhaps chasing it with bacon?) makes it tolerable. The benefits of spirulina are remarkable! My cat had a cancerous tumour on his neck, and after adding this to his food, the tumour seems to have shrunk in just a week! The lump on his neck has vanished! I've heard spirulina can shrink tumours, and the quality of this product must be exceptional to work so quickly. My other cat seems more active after I've given him this as well!
Read More
9
Energy boost
9 people found this helpful
My interest in spirulina was piqued by its unique characteristics. Phycocyanin, found only in spirulina, is reported to inhibit cancer cell growth. Introducing spirulina into my diet has improved my skin's health and metabolic balance. I've chosen Nutrex Hawaii's spirulina for its quality and lack of unpleasant odour. Mixing it in smoothies has been delightful, and I was surprised by the pleasant taste. The first effect I noticed was a surge of energy. I recommend this product; it has seamlessly fit into my diet, and I expect it will benefit others as well.
Read More
9
Disease resistance
2 people found this helpful
Spirulina is a superfood due to its rich plant pigments. It offers numerous benefits, including cancer resistance, heart disease prevention, and regulation of blood sugar levels. Its impressive nutritional profile makes it an essential supplement in the market. I appreciate the diverse advantages spirulina brings to my health.
Read More
7.5
Stamina improvement
2 people found this helpful
Superalgae has greatly satisfied me with the quality and taste of Nutrex spirulina powder. As a tennis player at 75, I've noticed improved stamina after several weeks. Initially, I had some stomach discomfort, possibly due to adjusting to the product, but this resolved as I reduced my dosage. Spirulina is well-known for its benefits, including being a powerful antioxidant and aiding in the prevention of metabolic diseases and cancer. I prefer Nutrex because they use a heat-free drying process, preserving proteins and enzymes, particularly Superoxide dismutase (SOD), which protects our cells during energy production. Though slightly more expensive, the additional quality and benefits make it worth it.
Read More
7.5
Cancer prevention
Spirulina has significantly strengthened my immune system, provided cold prevention, and cleansed my blood. It aids in reducing bad cholesterol and protects my heart, while also assisting my liver function and thyroid health. Additionally, I believe it plays a role in cancer prevention and has improved my overall mental activity and sleep quality. I'm very pleased with this supplement and would recommend purchasing it.
Read More
Frequently Asked Questions
7.5
Stamina improvement
2 people found this helpful
Superalgae has greatly satisfied me with the quality and taste of Nutrex spirulina powder. As a tennis player at 75, I've noticed improved stamina after several weeks. Initially, I had some stomach discomfort, possibly due to adjusting to the product, but this resolved as I reduced my dosage. Spirulina is well-known for its benefits, including being a powerful antioxidant and aiding in the prevention of metabolic diseases and cancer. I prefer Nutrex because they use a heat-free drying process, preserving proteins and enzymes, particularly Superoxide dismutase (SOD), which protects our cells during energy production. Though slightly more expensive, the additional quality and benefits make it worth it.
7.5
Post-cancer support
I re-ordered spirulina after reading research on its benefits for post-cancer recovery. My experience has been positive, and I believe it aids in my health journey.
7.5
Cancer prevention
Spirulina has significantly strengthened my immune system, provided cold prevention, and cleansed my blood. It aids in reducing bad cholesterol and protects my heart, while also assisting my liver function and thyroid health. Additionally, I believe it plays a role in cancer prevention and has improved my overall mental activity and sleep quality. I'm very pleased with this supplement and would recommend purchasing it.
9
Energy boost
9 people found this helpful
My interest in spirulina was piqued by its unique characteristics. Phycocyanin, found only in spirulina, is reported to inhibit cancer cell growth. Introducing spirulina into my diet has improved my skin's health and metabolic balance. I've chosen Nutrex Hawaii's spirulina for its quality and lack of unpleasant odour. Mixing it in smoothies has been delightful, and I was surprised by the pleasant taste. The first effect I noticed was a surge of energy. I recommend this product; it has seamlessly fit into my diet, and I expect it will benefit others as well.
9
Disease resistance
2 people found this helpful
Spirulina is a superfood due to its rich plant pigments. It offers numerous benefits, including cancer resistance, heart disease prevention, and regulation of blood sugar levels. Its impressive nutritional profile makes it an essential supplement in the market. I appreciate the diverse advantages spirulina brings to my health.
8
Spirulina proteins show anticancer promise
We explored a novel technique to extract antioxidants and anticancer proteins from spirulina, a cyanobacterial biomass known for its beneficial properties. This method utilized ultrasound-assisted deep eutectic solvent extraction, optimizing extraction parameters to maximize protein yield and bioactivity.
Our findings revealed a protein yield of over 80% with impressive antioxidant capabilities. Notably, the extracted proteins showed significant cytotoxic effects against colorectal cancer cells while being safe for normal cells. This highlights spirulina’s potential as a natural ally in cancer treatment and health enhancement.
Our findings revealed a protein yield of over 80% with impressive antioxidant capabilities. Notably, the extracted proteins showed significant cytotoxic effects against colorectal cancer cells while being safe for normal cells. This highlights spirulina’s potential as a natural ally in cancer treatment and health enhancement.
8
We investigated a new treatment using Spirulina platensis as an innovative embolic agent for tackling hepatocellular carcinoma (HCC). This microalgae formulation, loaded with doxorubicin, was designed to overcome challenges with current therapies by improving drug delivery and maintaining effectiveness in challenging tumor environments.
The treatment not only showed success in reducing tumor size in rat models but did so with minimal side effects due to the natural safety profile of Spirulina. These promising results suggest that DOX-SP may offer a viable solution for improving cancer treatment strategies in HCC.
The treatment not only showed success in reducing tumor size in rat models but did so with minimal side effects due to the natural safety profile of Spirulina. These promising results suggest that DOX-SP may offer a viable solution for improving cancer treatment strategies in HCC.
7
We investigated the potential of selenium nanoparticles (SP-SeNPs) sourced from Spirulina platensis in treating cancer. The results showed that these nanoparticles not only possess antioxidant and antimicrobial properties but also demonstrated anti-tumor effects.
In experiments with breast and ovarian cancer cell lines, we observed a reduction in cell viability, indicating their potential in cancer therapies. While SP-SeNPs show promise, further studies are essential to fully understand their effectiveness and applications in medical treatment.
In experiments with breast and ovarian cancer cell lines, we observed a reduction in cell viability, indicating their potential in cancer therapies. While SP-SeNPs show promise, further studies are essential to fully understand their effectiveness and applications in medical treatment.
8
Spirulina nanoparticles show anticancer promise
We explored the potential of silver chloride nanoparticles made from Spirulina platensis extract as a new treatment for breast cancer. By employing various techniques, the nanoparticles showed a size range of 40-70 nm and a spherical shape.
When tested on MDA-MB231 breast cancer cells, these nanoparticles induced early apoptosis in a notable percentage of cells. The study revealed changes in several key genes related to cell death, suggesting AgCLNPs-SP could be an effective therapeutic approach against breast cancer.
Overall, findings indicate that these nanoparticles hold promise as a treatment, encouraging further research in cancer therapies.
When tested on MDA-MB231 breast cancer cells, these nanoparticles induced early apoptosis in a notable percentage of cells. The study revealed changes in several key genes related to cell death, suggesting AgCLNPs-SP could be an effective therapeutic approach against breast cancer.
Overall, findings indicate that these nanoparticles hold promise as a treatment, encouraging further research in cancer therapies.
7
We examined how C-phycocyanin (C-PC) impacts melanoma, a particularly aggressive skin cancer. In our study, we induced tumors in mice and subsequently treated them with C-PC for three days. We found that treatment boosted key immune cells and showed significant immunomodulatory effects, especially when tumors were present. Importantly, there was no damage to vital organs from the treatment. Our research highlights the potential role of C-PC in enhancing tumor immunity, suggesting promising avenues for future clinical trials in cancer treatment.
8
Spirulina reduces chemotherapy side effects
This study explored how spirulina's phycobiliproteins can help protect pregnant mice from the harmful effects of a common chemotherapy drug, cyclophosphamide.
We divided the mice into different groups, comparing those treated with cyclophosphamide alone to those also given spirulina over several days.
The results were promising; spirulina showed a significant ability to reduce developmental and genetic damage in embryos. While further research is necessary, these findings suggest spirulina could be a helpful support for pregnant women undergoing chemotherapy.
We divided the mice into different groups, comparing those treated with cyclophosphamide alone to those also given spirulina over several days.
The results were promising; spirulina showed a significant ability to reduce developmental and genetic damage in embryos. While further research is necessary, these findings suggest spirulina could be a helpful support for pregnant women undergoing chemotherapy.
References
- Zin MT, Kaewkod T, Chaipoot S, Kanthakat G, Chen YY, et al. Ultrasound-Assisted Deep Eutectic Solvent Extraction of Antioxidant and Anti-Colorectal Cancer Proteins from Biomass: Process Intensification, Characterization, and Bioactivity Evaluation. Antioxidants (Basel). 2025;14. doi:10.3390/antiox14030365
- Wang K, Zhong D, Yang L, Zeng C, Hu Q, et al. Microalgae-based biodegradable embolic agent for the treatment of hepatocellular carcinoma through transarterial embolization. J Nanobiotechnology. 2025;23:234. doi:10.1186/s12951-025-03290-5
- Yassein AS, Elamary RB, Alwaleed EA. Biogenesis, characterization, and applications of Spirulina selenium nanoparticles. Microb Cell Fact. 2025;24:39. doi:10.1186/s12934-025-02656-6
- García-Martínez Y, Razo-Estrada AC, Pérez-Pastén-Borja R, Galván-Colorado C, Chamorro-Cevallos G, et al. Protective Effects of Phycobiliproteins from (Spirulina) Against Cyclophosphamide-Induced Embryotoxicity and Genotoxicity in Pregnant CD1 Mice. Pharmaceuticals (Basel). 2025;18. doi:10.3390/ph18010101
- Hussein MY, Nasr M, Emad V, Maged J, George P, et al. Unveiling the potential anticancer activity of Spirulina maxima extract-nanoemulsion through in vitro and in vivo studies. Sci Rep. 2025;15:912. doi:10.1038/s41598-024-82924-4
- Moura YAS, Marques da Silva M, Cadete da Silva S, Nascimento TP, Lima Leite AC, et al. Fibrinolytic enzyme from Arthrospira platensis and its effects on breast cancer cells: Exploring its potential as an innovative therapy. Biochimie. 2025;231:137. doi:10.1016/j.biochi.2024.12.013
- Panya A, Wathikthinnakon M, Thepmalee C, Chiawpanit C, Panwong S, et al. Polysaccharide extract of Spirulina sp. increases effector immune-cell killing activities against cholangiocarcinoma. PLoS One. 2024;19:e0312414. doi:10.1371/journal.pone.0312414
- Khalil EM, Rady MI, Darwish SF, Abd-Allah ER. Nano Spirulina platensis countered cisplatin-induced repro-toxicity by reversing the expression of altered steroid hormones and downregulation of the StAR gene. Naunyn Schmiedebergs Arch Pharmacol. 2025;398:4053. doi:10.1007/s00210-024-03483-z
- Hassanin SO, Hegab AMM, Mekky RH, Said MA, Khalil MG, et al. Combining In Vitro, In Vivo, and Network Pharmacology Assays to Identify Targets and Molecular Mechanisms of Spirulina-Derived Biomolecules against Breast Cancer. Mar Drugs. 2024;22. doi:10.3390/md22070328
- Hua S, Zhao J, Li L, Liu C, Zhou L, et al. Photosynthetic bacteria-based whole-cell inorganic-biohybrid system for multimodal enhanced tumor radiotherapy. J Nanobiotechnology. 2024;22:379. doi:10.1186/s12951-024-02654-7
- Yay C, Cinar ZO, Donmez S, Tumer TB, Guneser O, et al. Optimizing bioreactor conditions for Spirulina fermentation by Lactobacillus helveticus and Kluyveromyces marxianus: Impact on chemical & bioactive properties. Bioresour Technol. 2024;403:130832. doi:10.1016/j.biortech.2024.130832
- Krushna BRR, Manjunatha K, Wu SY, Sivaganesh D, Sharma SC, et al. Ultrasound-driven facile fabrication of Pd doped SnO hierarchical superstructures: Structural, growth mechanism, dermatoglyphics, and anti-cancer activity. Biomater Adv. 2024;160:213855. doi:10.1016/j.bioadv.2024.213855
- Salgado MTSF, Silva MCS, Fratelli C, Braga ARC, Lopes TBG, et al. Bioactive C-phycocyanin exerts immunomodulatory and antitumor activity in mice with induced melanoma. Toxicol Appl Pharmacol. 2024;484:116874. doi:10.1016/j.taap.2024.116874
- Afzali M, Sadat Shandiz SA, Keshtmand Z. Preparation of biogenic silver chloride nanoparticles from microalgae Spirulina Platensis extract: anticancer properties in MDA-MB231 breast cancer cells. Mol Biol Rep. 2024;51:62. doi:10.1007/s11033-023-08970-9
- Al-Badwy AH, Khalil AM, Bashal AH, Kebeish R. Polysaccharides from Spirulina platensis (PSP): promising biostimulants for the green synthesis of silver nanoparticles and their potential application in the treatment of cancer tumors. Microb Cell Fact. 2023;22:247. doi:10.1186/s12934-023-02257-1
- Saberi S, Modiri-Delshad T, Etemad-Moghadam S, Alaeddini M, Jamshidloo R, et al. Efficacy of synthesized cubic spirulina platensis photosensitizer in anticancer photodynamic therapy: An in vitro study. Photodiagnosis Photodyn Ther. 2023;42:103511. doi:10.1016/j.pdpdt.2023.103511
