Overview

SCIENTIFIC SCORE
Moderately Effective
Based on 27 Researches
8.3
USERS' SCORE
Good
Based on 62 Reviews
8.2
Supplement Facts
Serving Size: 1 Veg Capsule
Amount Per Serving
%DV
Selenium (elemental)(from 40 mg L-Selenomethionine)
200 mcg
364%

Top Medical Research Studies

9.5
Selenium drug shows selective toxicity
We examined how a selenium-containing drug, known as RuSe, targets cancer cells while sparing normal cells. This innovative approach leverages the unique properties of selenium, specifically its electrophilic center, to create oxidative stress within cancer cells. By shuttling electrons from biological electron donors, the drug activates a sequence of events detrimental to cancer survival.

The results were striking; we found that the rate of electron transfer at the selenium site is significantly higher in cancer cells compared to normal cells—1.81 times greater, to be precise. This selective action leads to a lethal effect, with the drug being 14.98 times more harmful to cancer cells than to their healthy counterparts. We observed that the generation of superoxide anions from this process causes DNA damage and triggers the p53 signaling pathway, which enhances the drug's effectiveness in killing cancer cells.

Our findings offer an exciting new avenue for crafting chemotherapeutic agents that can be both efficient and less toxic. By exploiting the special properties of selenium, we open the door to more intelligent and targeted cancer therapies that could reduce side effects for patients.
Read More
8
Selenium's role in lung cancer
We explored how selenium, a trace element, can play a role in preventing and treating lung cancer. This review focused on various forms of selenium, including sodium selenite, methylselenic acid, selenomethionine, and selenium nanoparticles.

We observed that these compounds could exert a cytotoxic effect on lung cancer cells, which is crucial for developing new therapies. Additionally, we discussed recent advancements in lung cancer nanomedicine that utilize selenium-based nanoparticles and nanocomposites, assessing their potential to form effective anti-cancer drugs.

Moreover, we studied selenoproteins' roles and the signaling pathways they affect in lung cancer progression or inhibition. Overall, this review provides valuable insights into how selenium and its related compounds might impact lung cancer therapy, while also highlighting the need for further research to realize their full potential in treatment and prevention strategies.
Read More
9
Selenium improves colon cancer treatment
We aimed to understand the impact of selenium-enriched Akkermansia muciniphila (Se-AM) on colon cancer, specifically looking at its effectiveness in treating tumors in mice. By enriching the probiotics with inorganic selenium, we prepared Se-AM and evaluated its performance against colon cancer cells using a mouse model.

Our findings revealed that Se-AM was effective in killing colon cancer cells, notably the CT26 cells. The effectiveness seemed to depend on the concentration, indicating that higher doses were better at destroying these cancer cells. In addition to this direct killing effect, we saw that Se-AM played a therapeutic role in mice with established tumors by reducing tumor size and positively altering inflammatory markers in the colon.

Importantly, treatment with Se-AM restored gut microbiota diversity back to levels similar to healthy controls. We observed a notable increase in beneficial bacteria, which suggests that Se-AM not only addresses cancer cells but also promotes a healthier gut environment. Furthermore, we didn't find any adverse effects on vital organs in the mice, highlighting the safety of this treatment.

Overall, our work indicates that Se-enriched Akkermansia muciniphila has promising potential in the fight against colon cancer, providing both direct anti-cancer effects and supporting gut health.
Read More

Most Useful Reviews

9
Boosts cancer defence
191 people found this helpful
This mineral supplement is vital for immunity and thyroid health. Selenium acts as a powerful antioxidant, combating atherosclerosis, cancer, infertility risk, and chronic fatigue. I recommend it for improving brain function and reducing cardiovascular disease risks.
Read More
9
Essential for prevention
136 people found this helpful
Selenium is crucial for cancer prevention. If you want to maintain your health and lower tumour risks, I highly recommend this supplement.
Read More
9
Helps prevent cancers
57 people found this helpful
Selenium helps prevent common cancers, fights viruses, and alleviates symptoms linked to serious illnesses, such as asthma. I recommend it!
Read More

Medical Researches

SCIENTIFIC SCORE
Moderately Effective
Based on 27 Researches
8.3
  • All Researches
9.5
Selenium drug shows selective toxicity
We examined how a selenium-containing drug, known as RuSe, targets cancer cells while sparing normal cells. This innovative approach leverages the unique properties of selenium, specifically its electrophilic center, to create oxidative stress within cancer cells. By shuttling electrons from biological electron donors, the drug activates a sequence of events detrimental to cancer survival.

The results were striking; we found that the rate of electron transfer at the selenium site is significantly higher in cancer cells compared to normal cells—1.81 times greater, to be precise. This selective action leads to a lethal effect, with the drug being 14.98 times more harmful to cancer cells than to their healthy counterparts. We observed that the generation of superoxide anions from this process causes DNA damage and triggers the p53 signaling pathway, which enhances the drug's effectiveness in killing cancer cells.

Our findings offer an exciting new avenue for crafting chemotherapeutic agents that can be both efficient and less toxic. By exploiting the special properties of selenium, we open the door to more intelligent and targeted cancer therapies that could reduce side effects for patients.
Read More
9.5
Selenium enhances lung cancer therapy
We investigated the impact of selenium nanoparticles (SeNPs) on enhancing treatment for advanced non-small-cell lung cancer (NSCLC). Our research revealed that selenium deficiency is linked to immune dysfunction in patients, contributing to cancer progression. In experiments with mice, low selenium led to weakened immunity and faster tumor growth.

Importantly, we found that SeNPs can improve the effectiveness of chemotherapy drugs by promoting the immune response. A clinical trial showed striking results with an 83.3% response rate and 100% disease control with SeNPs in combination with standard treatments. Thus, selenium is shown to significantly support cancer therapy.
Read More
9
Selenium improves colon cancer treatment
We aimed to understand the impact of selenium-enriched Akkermansia muciniphila (Se-AM) on colon cancer, specifically looking at its effectiveness in treating tumors in mice. By enriching the probiotics with inorganic selenium, we prepared Se-AM and evaluated its performance against colon cancer cells using a mouse model.

Our findings revealed that Se-AM was effective in killing colon cancer cells, notably the CT26 cells. The effectiveness seemed to depend on the concentration, indicating that higher doses were better at destroying these cancer cells. In addition to this direct killing effect, we saw that Se-AM played a therapeutic role in mice with established tumors by reducing tumor size and positively altering inflammatory markers in the colon.

Importantly, treatment with Se-AM restored gut microbiota diversity back to levels similar to healthy controls. We observed a notable increase in beneficial bacteria, which suggests that Se-AM not only addresses cancer cells but also promotes a healthier gut environment. Furthermore, we didn't find any adverse effects on vital organs in the mice, highlighting the safety of this treatment.

Overall, our work indicates that Se-enriched Akkermansia muciniphila has promising potential in the fight against colon cancer, providing both direct anti-cancer effects and supporting gut health.
Read More
9
Selenium nanoparticles show cancer potential
We focused on the potential of selenium nanoparticles (SeNPs) derived from the medicinal plant Indigofera aspalathoides in treating cancer, particularly its hepatoprotective capabilities. In our exploration, we utilized an ethanolic extract of the plant to green-synthesize SeNPs and then characterized them using several analytical techniques.

The particle sizes were found to be between 50-80 nm, ensuring they are both stable and effective for biological interactions. We evaluated their antioxidant activity and cytotoxic effects, particularly on breast cancer (MCF-7) and liver cancer (HepG2) cell lines. The SeNPs exhibited impressive antioxidant properties, with a DPPH scavenging rate of 70.32% and hydroxyl radical scavenging at 73.68%.

Notably, we discovered that the SeNPs provided significant protection to liver cells at a concentration of 88 μg/mL, maintaining 100% cell viability. However, we also identified that higher selenium concentrations could lead to cytotoxicity. Our findings highlight selenium nanoparticles as promising candidates for addressing oxidative stress and liver-related disorders while offering potential benefits in cancer treatment.
Read More
9
Selenium compounds show anti-cancer promise
We synthesized thirty selenium-containing coumarin derivatives and tested their effectiveness against various malignant tumor cell lines. Notably, one compound, referred to as 11i, showed remarkable potency against SK-N-SH neuroblastoma cells, with a low inhibitory concentration of just 2.5 μM.

Our experiments demonstrated that compound 11i significantly inhibited not only cell proliferation but also migration and invasion. Through several analyses, we observed an increase in the Bax/Bcl-2 protein expression ratio, which is a marker for apoptosis, alongside the release of Cytochrome C from the mitochondria. This process triggered apoptosis via the mitochondria-mediated pathway, effectively inducing cell death in neuroblastoma.

Moreover, we noted that the compound localized within the cytoplasm and interacted closely with mitochondria, suggesting it may disrupt normal mitochondrial functions. Computational docking studies supported these findings, showing that compound 11i bound strongly to Bcl-2 and mitochondrial G-quadruplexes.

In in vivo studies, using a mouse model of neuroblastoma, compound 11i exhibited impressive anti-tumor effects, achieving tumor inhibition rates of 79% and 93% at doses of 10 and 20 mg/kg, respectively. These results indicate the potential of selenium-containing coumarin derivatives as promising candidates for developing new treatments against neuroblastoma.
Read More

User Reviews

USERS' SCORE
Good
Based on 62 Reviews
8.2
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Boosts cancer defence
191 people found this helpful
This mineral supplement is vital for immunity and thyroid health. Selenium acts as a powerful antioxidant, combating atherosclerosis, cancer, infertility risk, and chronic fatigue. I recommend it for improving brain function and reducing cardiovascular disease risks.
Read More
9
Essential for prevention
136 people found this helpful
Selenium is crucial for cancer prevention. If you want to maintain your health and lower tumour risks, I highly recommend this supplement.
Read More
9
Helps prevent cancers
57 people found this helpful
Selenium helps prevent common cancers, fights viruses, and alleviates symptoms linked to serious illnesses, such as asthma. I recommend it!
Read More
9
Youthful longevity aid
35 people found this helpful
Selenium is a vital antioxidant with proven benefits against cancer and premature ageing. I experienced significant health improvements for my thyroid issues after taking selenium combined with iodine and L-tyrosine.
Read More
9
Cancer prevention
12 people found this helpful
Antioxidant effects combined with amino acids are noteworthy! After reading Professor Tokumi Fujikawa's book, I opted for selenium, which is beneficial for cancer patients beyond vitamins C and E. The capsules are small and vegetarian, making them easy to swallow. It's crucial to also ingest amino acids with protein for optimal antioxidant effect. My cancer is nearly in remission, and I will continue taking this to prevent its recurrence.
Read More

Frequently Asked Questions

9
Positive treatment effect
2 people found this helpful
During my breast cancer treatment, I took one 200μg selenium tablet daily. Although chemotherapy's side effects were challenging, I believe the supplements helped me endure while working. The lump reduced significantly, and a pathology test post-surgery revealed no cancer cells. I plan to continue taking it and would recommend it to anyone undergoing cancer treatment.
9
Cancer prevention
12 people found this helpful
Antioxidant effects combined with amino acids are noteworthy! After reading Professor Tokumi Fujikawa's book, I opted for selenium, which is beneficial for cancer patients beyond vitamins C and E. The capsules are small and vegetarian, making them easy to swallow. It's crucial to also ingest amino acids with protein for optimal antioxidant effect. My cancer is nearly in remission, and I will continue taking this to prevent its recurrence.
7.5
Protects against cancer
210 people found this helpful
Selenium is essential for iodine absorption and overall health. It enhances iron absorption and is crucial for men's health, especially with high levels of toxins. Its antioxidant properties aid in cancer prevention and keep viruses at bay. However, be cautious of selenium overdose; consult a doctor for proper dosage and testing.
9
Youthful longevity aid
35 people found this helpful
Selenium is a vital antioxidant with proven benefits against cancer and premature ageing. I experienced significant health improvements for my thyroid issues after taking selenium combined with iodine and L-tyrosine.
9
Helps prevent cancers
57 people found this helpful
Selenium helps prevent common cancers, fights viruses, and alleviates symptoms linked to serious illnesses, such as asthma. I recommend it!
9
Cancer protection benefits
2 people found this helpful
Selenium is essential, as various studies show high blood levels protect against several cancers and cardiovascular diseases, such as heart attack and stroke. It enhances memory and mental abilities, strengthening immune response, which is vital during the COVID-19 pandemic.
9
Supports cancer recovery
4 people found this helpful
My husband has taken Selenium daily for years, and I read it aids cancer recovery. He has been cancer-free for four years post-surgery and radiation for prostate cancer. He also takes other vitamins for energy and health.
9
Cancer cell impact
1 people found this helpful
Selenium is a potent antioxidant that boosts immunity and helps macrophages kill bacteria. It can destroy cancer cells and enhance antibody production, making it effective against cancer. Combining selenium with vitamin E further amplifies their effects.
6
Cancer prevention routine
16 people found this helpful
I have regularly taken selenium for ten years as preventative care against cancer and vascular diseases. It's important as many Russians lack this vital mineral.
7.5
Caution against overdose
65 people found this helpful
While selenium can be toxic in large doses, it positively impacts many bodily functions at recommended levels. It combats cancer, atherosclerosis, infertility, and chronic fatigue. Always consult a doctor for appropriate dosage and take it with vitamin E for optimal absorption.
9
Selenium improves colon cancer treatment
We aimed to understand the impact of selenium-enriched Akkermansia muciniphila (Se-AM) on colon cancer, specifically looking at its effectiveness in treating tumors in mice. By enriching the probiotics with inorganic selenium, we prepared Se-AM and evaluated its performance against colon cancer cells using a mouse model.

Our findings revealed that Se-AM was effective in killing colon cancer cells, notably the CT26 cells. The effectiveness seemed to depend on the concentration, indicating that higher doses were better at destroying these cancer cells. In addition to this direct killing effect, we saw that Se-AM played a therapeutic role in mice with established tumors by reducing tumor size and positively altering inflammatory markers in the colon.

Importantly, treatment with Se-AM restored gut microbiota diversity back to levels similar to healthy controls. We observed a notable increase in beneficial bacteria, which suggests that Se-AM not only addresses cancer cells but also promotes a healthier gut environment. Furthermore, we didn't find any adverse effects on vital organs in the mice, highlighting the safety of this treatment.

Overall, our work indicates that Se-enriched Akkermansia muciniphila has promising potential in the fight against colon cancer, providing both direct anti-cancer effects and supporting gut health.
9
Selenium nanoparticles show cancer potential
We focused on the potential of selenium nanoparticles (SeNPs) derived from the medicinal plant Indigofera aspalathoides in treating cancer, particularly its hepatoprotective capabilities. In our exploration, we utilized an ethanolic extract of the plant to green-synthesize SeNPs and then characterized them using several analytical techniques.

The particle sizes were found to be between 50-80 nm, ensuring they are both stable and effective for biological interactions. We evaluated their antioxidant activity and cytotoxic effects, particularly on breast cancer (MCF-7) and liver cancer (HepG2) cell lines. The SeNPs exhibited impressive antioxidant properties, with a DPPH scavenging rate of 70.32% and hydroxyl radical scavenging at 73.68%.

Notably, we discovered that the SeNPs provided significant protection to liver cells at a concentration of 88 μg/mL, maintaining 100% cell viability. However, we also identified that higher selenium concentrations could lead to cytotoxicity. Our findings highlight selenium nanoparticles as promising candidates for addressing oxidative stress and liver-related disorders while offering potential benefits in cancer treatment.
8
Selenium's role in lung cancer
We explored how selenium, a trace element, can play a role in preventing and treating lung cancer. This review focused on various forms of selenium, including sodium selenite, methylselenic acid, selenomethionine, and selenium nanoparticles.

We observed that these compounds could exert a cytotoxic effect on lung cancer cells, which is crucial for developing new therapies. Additionally, we discussed recent advancements in lung cancer nanomedicine that utilize selenium-based nanoparticles and nanocomposites, assessing their potential to form effective anti-cancer drugs.

Moreover, we studied selenoproteins' roles and the signaling pathways they affect in lung cancer progression or inhibition. Overall, this review provides valuable insights into how selenium and its related compounds might impact lung cancer therapy, while also highlighting the need for further research to realize their full potential in treatment and prevention strategies.

References

  1. Li X, Rui W, Shu P, Sun Y, Yang J. Efficacy Evaluation of Selenium-enriched Akkermansia muciniphila in the Treatment of Colon Tumor Mice. Probiotics Antimicrob Proteins. 2025. doi:10.1007/s12602-025-10500-x
  2. Raman S, Kasirajan S, Chinnapandi B, Karthikeyan K, Pandian A, et al. Luminescent Biogenic Selenium Nanoparticles From Indigofera aspalathoides Vahl ex DC: A Novel Hepatoprotective Strategy for Enhancing Live Health. Luminescence. 2025;40:e70101. doi:10.1002/bio.70101
  3. Janakiram NB, Mohammed A, Ravillah D, Choi CI, Zhang Y, et al. [Corrigendum] Chemopreventive effects of PBI‑Se, a selenium‑containing analog of PBIT, on AOM‑induced aberrant crypt foci in F344 rats. Oncol Rep. 2025;53. doi:10.3892/or.2025.8877
  4. Varlamova EG. Selenium-containing compounds, selenium nanoparticles and selenoproteins in the prevention and treatment of lung cancer. J Trace Elem Med Biol. 2025;88:127620. doi:10.1016/j.jtemb.2025.127620
  5. Qin X, Guo J, Li H, He H, Cai F, et al. Selenium Electrophilic Center Responsive to Biological Electron Donors for Efficient Chemotherapy. Adv Sci (Weinh). 2025. doi:10.1002/advs.202412062
  6. Yu YH, Kouame KJE, Liu X, Yu X, Jin MY, et al. Preparation, characterization, and induced human colon cancer HCT-116 and HT-29 cell apoptosis performance of selenium nanoparticles stabilized by longan polysaccharides. Int J Biol Macromol. 2025. doi:10.1016/j.ijbiomac.2025.140719
  7. 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
  8. Guo K, Yang X, Wang J, Chang W, Liu S, et al. Synthesis and Bioactivity of Selenium Nanoparticles From Tussilago farfara L. Polysaccharides: Antioxidant Properties and MCF-7 Cell Inhibition. Chem Biodivers. 2025. doi:10.1002/cbdv.202402677
  9. Wang M, Xu H, Xiong X, Chang L, Zhang K, et al. Antiproliferative activity of selenium-enriched coumarin derivatives on the SK-N-SH neuroblastoma cell line: Mechanistic insights. Eur J Med Chem. 2025;286:117322. doi:10.1016/j.ejmech.2025.117322
  10. Zakharia Y, Reis RJ, Kroll MR, Rataan AO, Manchkanti S, et al. Phase I Clinical Trial of High Doses of Seleno-L-methionine in Combination with Axitinib in Patients with Previously Treated Metastatic Clear Cell Renal Cell Carcinoma. Clin Cancer Res. 2025. doi:10.1158/1078-0432.CCR-24-3234
  11. Yu Y, Wang Y, Zhang J, Bu Q, Jiang D, et al. Anaerobic probiotics-in situ Se nanoradiosensitizers selectively anchor to tumor with immuno-regulations for robust cancer radio-immunotherapy. Biomaterials. 2025;318:123117. doi:10.1016/j.biomaterials.2025.123117
  12. Ban B, Yang H, Liu Y, Luo Z. Se-methylselenocysteine Inhibits Migration and Glycolysis in Anaplastic Thyroid Carcinoma Cells via the ERK1/2 Signaling Pathway . Ann Clin Lab Sci. 2024;54:810.
  13. He L, Zhang L, Peng Y, He Z. Selenium in cancer management: exploring the therapeutic potential. Front Oncol. 2024;14:1490740. doi:10.3389/fonc.2024.1490740
  14. Rataan AO, Xu Y, Geary SM, Zakharia Y, Kamel ES, et al. Targeting transforming growth factor-β1 by methylseleninic acid/seleno-L-methionine in clear cell renal cell carcinoma: Mechanisms and therapeutic potential. Cancer Treat Res Commun. 2024;42:100864. doi:10.1016/j.ctarc.2025.100864
  15. Ashraf R, Khalid Z, Qin QP, Iqbal MA, Taskin-Tok T, et al. Synthesis of N-heterocyclic carbene‑selenium complexes modulating apoptosis and autophagy in cancer cells: Probing the interactions with biomolecules and enzymes. Bioorg Chem. 2025;160:108435. doi:10.1016/j.bioorg.2025.108435
  16. Wei K, Yin X, Chen F, Wang X, Ding W, et al. Synthesis, characterization, and bioactivity of selenium nanoparticles stabilized by regenerated chitin nanofibers. Int J Biol Macromol. 2025. doi:10.1016/j.ijbiomac.2025.142791
  17. Hosseinzadeh Ranjbar M, Einafshar E, Javid H, Jafari N, Sajjadi SS, et al. Enhancing the anticancer effects of rosmarinic acid in PC3 and LNCaP prostate cancer cells using titanium oxide and selenium-doped graphene oxide nanoparticles. Sci Rep. 2025;15:11568. doi:10.1038/s41598-025-96707-y
  18. Doostan M, Rahmani Azar A, Maleki H. Selenium nanoparticles and paclitaxel co-delivery by a PCL based nanofibrous scaffold to enhance melanoma therapy. J Biomater Appl. 2025. doi:10.1177/08853282251330724
  19. Çiğ B. Selenium reduces oxaliplatin induced neuropathic pain: focus on TRPV1. Front Pharmacol. 2025;16:1549190. doi:10.3389/fphar.2025.1549190
  20. Xie F, Liu N, Liu X, Feng X, Yang Z, et al. Insights into folic acid functionalization of self-assembled octenyl succinic anhydride starch micelles towards targeted delivery of selenium nanoparticles. Int J Biol Macromol. 2025;308:142352. doi:10.1016/j.ijbiomac.2025.142352
  21. Fu G, Tong J. Synthesis of Epimedium extract selenium nanoparticles and evaluation their efficacy against lung cancer. Gen Physiol Biophys. 2025;44:123. doi:10.4149/gpb_2024046
  22. Yu Y, Xie B, Wang J, Luo W, Yang M, et al. Translational Selenium Nanoparticles Promotes Clinical Non-small-cell Lung Cancer Chemotherapy via Activating Selenoprotein-driven Immune Manipulation. Adv Mater. 2025. doi:10.1002/adma.202415818
  23. Wang Y, Du Z, Du H, Zhao J, Duan Y, et al. Associations between dietary intake of zinc and selenium and breast cancer: findings from a NHANES cross-sectional study. Chin Clin Oncol. 2025;14:2. doi:10.21037/cco-24-83
  24. Szwiec M, Tomiczek-Szwiec J, Marciniak W, Derkacz R, Huzarski T, et al. The Effect of Blood Selenium Level on the pCR Rate in Breast Cancer Patient Receiving Neoadjuvant Chemotherapy. Cancers (Basel). 2025;17. doi:10.3390/cancers17050839
  25. Wen X, Zhou Q, Lin S, Mai H, Zhang L. Selenium-modified hydroxyapatite titanium coating: enhancing osteogenesis and inhibiting cancer in bone invasion by head and neck squamous cell carcinoma. Front Bioeng Biotechnol. 2025;13:1552661. doi:10.3389/fbioe.2025.1552661
  26. Jin X, Tong W, Sun L, Lu S, Sun P, et al. Association of composite dietary antioxidant index with high risk of prostate cancer in middle-aged and elderly men: insights from NHANES. Front Immunol. 2025;16:1530174. doi:10.3389/fimmu.2025.1530174
  27. Sun K, Ma L, Hou J, Li Y, Jiang H, et al. Physalis peruviana heteropolysaccharide-conjugated selenium nanoparticles: Preparation, characterization, and promising applications in cancer therapy. Int J Biol Macromol. 2025;306:141639. doi:10.1016/j.ijbiomac.2025.141639
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