We conducted an observational study to examine the levels of vitamin D in female patients with benign and malignant breast diseases. The research aimed to determine if there is a significant difference in vitamin D levels between those with non-cancerous conditions and those diagnosed with breast cancer.
During the study, we analyzed adult female patients admitted to a surgical department. Importantly, we excluded those who had taken vitamin D supplements recently or who had prior vitamin D deficiencies. By measuring serum vitamin D levels through a specific testing method, we were able to gather meaningful data about their relationship to breast health.
Our findings indicated a notable difference in average vitamin D levels when comparing the two groups. This suggests that inadequate vitamin D could be linked to an increased risk of developing breast cancer. Therefore, we explored the potential benefits of vitamin D supplementation as a preventive measure against breast cancer—though we acknowledge that larger and more controlled studies are essential to draw firm conclusions.
At the same time, we recognize that vitamin D has effects beyond bone health, and it is crucial to consider these broader impacts when discussing its role in cancer risk.
Read More
8
Vitamin D analogs in prostate cancer
[New insights of vitamin D-based therapy for prostate cancer].
We explored the potential benefits of a vitamin D analog in treating prostate cancer, which is a major cause of cancer-related deaths among men. Our work focused on understanding how this vitamin D form impacts cancer resistance and the tumor microenvironment. We used the Pten mouse model to observe the therapeutic effects of the vitamin D analog.
One significant finding was that combining this vitamin D analog with the chemotherapy drug docetaxel could overcome resistance seen in some prostate cancer cases. This combination showed promising results in primary cancer spheroids and xenografts from a patient whose cancer had resisted both docetaxel and androgen deprivation therapy.
These insights suggest that vitamin D analogs might offer new and effective strategies for managing advanced prostate cancer, particularly for those patients who have not responded well to standard treatments.
Read More
9
Vitamin D enhances chemotherapy delivery
Enzyme-responsive vitamin D-based micelles for paclitaxel-controlled delivery and synergistic pancreatic cancer therapy.
We explored the potential of vitamin D-based micelles designed to deliver paclitaxel, a key chemotherapy drug, specifically for pancreatic cancer treatment. This study focuses on developing enzyme-responsive micelles that not only carry paclitaxel but also utilize vitamin D as an integral part of the delivery system.
The micelles are made by combining vitamin D with polyethylene glycol, resulting in tiny structures that can release their drug load when interacting with enzymes typically found in pancreatic cancer cells. We observed that these micelles showed promising results in laboratory settings, enhancing the effectiveness of paclitaxel against aggressive pancreatic cancer cells compared to using paclitaxel alone.
Moreover, we noted that the vitamin D in the micelles may play a dual role: serving as both a hydrophobic core for drug delivery and a contributor to synergetic therapeutic effects. Our findings suggest that leveraging vitamin D in this way could increase the efficacy of existing treatment options for pancreatic cancer patients, which is particularly significant given the challenges currently faced in treating this disease.
Read More
Most Useful Reviews
9
Improved health status
2 people found this helpful
I trust this D3 as I had low levels and a history of cancer. It is the only D3 I take daily, along with K2 by Life Extension. Superior Source works well, and my D3 levels rose from 20 to 65-68 over time. It takes a while if you're depleted, but I feel better overall with fewer aches now that my D3 levels are normal.
Read More
7.5
Overall immune support
Daily intake of D3 is vital for the body, aiding calcium and phosphorus absorption important for bone growth. It also serves a protective function by reducing cancer cell growth and enhancing immune responses. D3 contributes to the normal functioning of the neuromuscular, endocrine, and immune systems.
Read More
7.5
Cancer prevention insights
5 people found this helpful
Good composition and easy to dissolve. Vitamin D (vitamin D3 or cholecalciferol) is vital for preventing diseases, including SARS and upper respiratory infections. Research shows that optimal vitamin D intake lowers the risk of many conditions, notably heart attacks, breast cancer, and colon cancer. I purchased vitamin D3 during the pandemic and found it small and easy to swallow, best taken with fatty foods in a large dosage of 5000 units. If you found my review helpful, please click Yes. Thank you!
We explored the potential of vitamin D-based micelles designed to deliver paclitaxel, a key chemotherapy drug, specifically for pancreatic cancer treatment. This study focuses on developing enzyme-responsive micelles that not only carry paclitaxel but also utilize vitamin D as an integral part of the delivery system.
The micelles are made by combining vitamin D with polyethylene glycol, resulting in tiny structures that can release their drug load when interacting with enzymes typically found in pancreatic cancer cells. We observed that these micelles showed promising results in laboratory settings, enhancing the effectiveness of paclitaxel against aggressive pancreatic cancer cells compared to using paclitaxel alone.
Moreover, we noted that the vitamin D in the micelles may play a dual role: serving as both a hydrophobic core for drug delivery and a contributor to synergetic therapeutic effects. Our findings suggest that leveraging vitamin D in this way could increase the efficacy of existing treatment options for pancreatic cancer patients, which is particularly significant given the challenges currently faced in treating this disease.
Read More
8
Vitamin D analogs in prostate cancer
[New insights of vitamin D-based therapy for prostate cancer].
We explored the potential benefits of a vitamin D analog in treating prostate cancer, which is a major cause of cancer-related deaths among men. Our work focused on understanding how this vitamin D form impacts cancer resistance and the tumor microenvironment. We used the Pten mouse model to observe the therapeutic effects of the vitamin D analog.
One significant finding was that combining this vitamin D analog with the chemotherapy drug docetaxel could overcome resistance seen in some prostate cancer cases. This combination showed promising results in primary cancer spheroids and xenografts from a patient whose cancer had resisted both docetaxel and androgen deprivation therapy.
These insights suggest that vitamin D analogs might offer new and effective strategies for managing advanced prostate cancer, particularly for those patients who have not responded well to standard treatments.
Read More
5
Vitamin D's role in breast disease
Levels of Serum 25-Hydroxy Vitamin D in Benign and Malignant Breast Disease Patients: An Observational Study.
We conducted an observational study to examine the levels of vitamin D in female patients with benign and malignant breast diseases. The research aimed to determine if there is a significant difference in vitamin D levels between those with non-cancerous conditions and those diagnosed with breast cancer.
During the study, we analyzed adult female patients admitted to a surgical department. Importantly, we excluded those who had taken vitamin D supplements recently or who had prior vitamin D deficiencies. By measuring serum vitamin D levels through a specific testing method, we were able to gather meaningful data about their relationship to breast health.
Our findings indicated a notable difference in average vitamin D levels when comparing the two groups. This suggests that inadequate vitamin D could be linked to an increased risk of developing breast cancer. Therefore, we explored the potential benefits of vitamin D supplementation as a preventive measure against breast cancer—though we acknowledge that larger and more controlled studies are essential to draw firm conclusions.
At the same time, we recognize that vitamin D has effects beyond bone health, and it is crucial to consider these broader impacts when discussing its role in cancer risk.
Read More
User Reviews
USERS' SCORE
Moderately Good
Based on 11 Reviews
7.8
All Reviews
Positive Reviews
Negative Reviews
9
Improved health status
2 people found this helpful
I trust this D3 as I had low levels and a history of cancer. It is the only D3 I take daily, along with K2 by Life Extension. Superior Source works well, and my D3 levels rose from 20 to 65-68 over time. It takes a while if you're depleted, but I feel better overall with fewer aches now that my D3 levels are normal.
Read More
7.5
Overall immune support
Daily intake of D3 is vital for the body, aiding calcium and phosphorus absorption important for bone growth. It also serves a protective function by reducing cancer cell growth and enhancing immune responses. D3 contributes to the normal functioning of the neuromuscular, endocrine, and immune systems.
Read More
7.5
Cancer prevention insights
5 people found this helpful
Good composition and easy to dissolve. Vitamin D (vitamin D3 or cholecalciferol) is vital for preventing diseases, including SARS and upper respiratory infections. Research shows that optimal vitamin D intake lowers the risk of many conditions, notably heart attacks, breast cancer, and colon cancer. I purchased vitamin D3 during the pandemic and found it small and easy to swallow, best taken with fatty foods in a large dosage of 5000 units. If you found my review helpful, please click Yes. Thank you!
Read More
7.5
Critical health benefits
4 people found this helpful
Good composition of lanolin. No vitamin boosts health like vitamin D (vitamin D3 or cholecalciferol). Current research shows that vitamin D may significantly prevent upper respiratory infection and various diseases, including breast and colon cancer. I bought vitamin D3 during the pandemic. Conventional tablets are small and easy to swallow, ideally taken with fatty foods in a large dosage of 5000 units. If my review was helpful, please click Yes. Thank you!
Read More
7.5
Promotes well-being
3 people found this helpful
Good composition. No vitamin affects health like vitamin D (vitamin D3 or cholecalciferol). Research indicates that vitamin D plays a crucial role in preventing various health issues, including breast and colon cancer. With higher blood levels of vitamin D, the risk of heart attacks and other complications decreases. I bought vitamin D3 during a pandemic; it's small, easy to swallow, and advisable to take with fatty foods in a dosage of 5000 units. If my review was useful, please click Yes. Thank you!
Cancer is a complex group of diseases characterized by uncontrolled growth and spread of abnormal cells in the body. These cells can form tumors, invade nearby tissues, and metastasize to other parts of the body via the bloodstream or lymphatic system. While cancer can affect nearly any part of the body, it is classified into various types, including carcinomas, sarcomas, leukemia, and lymphomas, each originating from different types of cells. Risk factors for developing cancer can include genetic predisposition, lifestyle choices such as smoking and diet, environmental exposures, and certain infections.
Diagnosis typically involves medical imaging, biopsies, and a thorough review of personal and family health histories. Treatment options vary widely depending on the type and stage of cancer and may include surgery, chemotherapy, radiation therapy, immunotherapy, and targeted therapies. Early detection is crucial and can significantly improve treatment outcomes, leading to better survival rates. As awareness and research continue to advance, new methods for prevention, detection, and treatment of cancer are consistently being developed, offering hope to those affected by this challenging disease.
Vitamin D is a fat-soluble vitamin that's essential for maintaining healthy bones and teeth, supporting immune system function, and facilitating normal cell growth and development. It plays a crucial role in calcium absorption in the gut, which is vital for bone health. Unlike most vitamins, our bodies can produce Vitamin D when exposed to sunlight, specifically UVB rays, which is why it’s often referred to as the "sunshine vitamin." However, depending on your geographical location, lifestyle, and skin type, getting sufficient Vitamin D from the sun alone can be challenging, particularly during the winter months.
In addition to sunlight, Vitamin D can be obtained from certain foods such as fatty fish (like salmon and mackerel), fish liver oils, and fortified foods like milk and cereals. Some individuals may also consider supplements, especially if they're at risk for deficiency. Insufficient vitamin D levels are linked to various health issues, including rickets in children, osteomalacia in adults, and even an increased risk of chronic diseases. Regularly checking your vitamin D levels and consulting with a healthcare professional can help ensure you're meeting your needs for optimal health.
While there is ongoing research into the role of vitamin D in cancer prevention and treatment, the findings remain inconclusive. Some studies suggest that adequate levels of vitamin D may be associated with a lower risk of certain cancers, such as colorectal cancer and breast cancer, potentially due to its role in regulating cell growth and differentiation. However, definitive evidence proving that vitamin D supplements can prevent or successfully treat cancer is still lacking.
It’s important to approach the idea of using vitamin D as a cancer treatment with caution. Current guidelines recommend obtaining vitamin D primarily through safe sun exposure and diet. If you’re considering vitamin D supplementation, particularly for cancer-related purposes, it’s crucial to consult with a healthcare provider. They can provide personalized advice based on individual health needs and the latest research, ensuring that any approach to cancer management is both safe and effective.
Based on user reviews, the timeline for seeing results from vitamin D3 supplementation, particularly for cancer-related concerns, may vary. For instance, one user noted that it took time to rebuild their vitamin D levels from a deficiency but ultimately experienced overall improvement and fewer aches once those levels normalized (Read Review). Another user did not specify a duration but emphasized the importance of consistent intake, suggesting that regular use aligns with the body's needs and ongoing health benefits (Read Review).
Users also shared that vitamin D3 plays a role in important functions such as enhancing immunity, supporting muscle tone, and importantly, helping to prevent cancer cell growth. There appears to be a consensus that while some positive effects might be felt relatively quickly, achieving significant health benefits, particularly in terms of cancer prevention, could take time and is contingent on individual health conditions and starting vitamin D levels.
Vitamin D has shown promise in various studies as a potential adjunct therapy in cancer treatment, particularly in prostate, breast, and pancreatic cancers. Research indicates that a vitamin D analog combined with the chemotherapy drug docetaxel may help overcome resistance in advanced prostate cancer, leading to improved outcomes in patients who have not responded to standard treatments [1]. Similarly, observational findings suggest that inadequate vitamin D levels could increase the risk of developing breast cancer, hinting at the possible benefits of vitamin D supplementation as a preventive strategy, although further controlled studies are necessary to validate these observations [2].
Furthermore, innovative approaches utilizing vitamin D-infused micelles for controlled delivery of paclitaxel have demonstrated enhanced effectiveness in targeting pancreatic cancer cells, suggesting that vitamin D may enhance both drug delivery and therapeutic effects in this context as well [3]. Overall, while initial research highlights a potential role for vitamin D in cancer treatment, more extensive, controlled studies are needed to establish concrete guidelines and efficacy before it can be widely recommended.
Based on user reviews, many individuals have reported significant improvements in their overall health and well-being after supplementing with vitamin D3. For example, one user noted an increase in their vitamin D levels from 20 to 65-68 ng/ml over time, attributing their fewer aches and enhanced overall feeling to this normalization of vitamin D levels (Read Review). Others emphasized the supplement's role in supporting muscle tone, boosting immunity, and promoting essential bodily functions such as blood clotting and thyroid health (Read Review).
Additionally, users highlighted the protective properties of vitamin D3, reporting its importance in reducing the risk of severe health conditions, including cancer and respiratory infections during the pandemic. Many agreed that optimal vitamin D intake could significantly lower the risk of diseases such as breast and colon cancer (Read Review). While results can vary from person to person, the collective feedback suggests that consistent use can lead to notable health advancements and that vitamin D3 is a valuable addition to many supplements regimens.
Users have reported positive experiences when combining vitamin D3 supplements with others, particularly vitamin K2, for cancer management and overall health. One user noted a significant increase in their vitamin D levels after taking D3 daily alongside K2, which they believe contributed to their improved well-being and fewer aches. This combination appears to enhance the effectiveness of vitamin D3 in supporting immune health and possibly reducing cancer risks (Read Review).
Furthermore, individuals emphasized the protective roles of vitamin D3 against cancer cell growth. Many users described how the supplement helps regulate essential bodily functions, including muscle tone, immunity, and blood clotting, which suggests that consistent use, combined with other supportive supplements, may provide comprehensive benefits in handling cancer risk and improving overall health (Read Review). This collective feedback indicates that users value a multi-supplement approach, particularly during challenging health periods.
Users report that a daily intake of Vitamin D3, specifically in a dosage of 5000 units, is commonly recommended for those looking to manage their health and potentially support cancer treatment. Many reviews highlight that this level of intake is necessary for maintaining optimal vitamin D levels, especially for individuals with a history of cancer or other health issues. For instance, one user noted their D3 levels rose significantly over time with consistent use at this dosage, suggesting a positive impact on overall health and a reduction in aches (Read Review).
Additionally, several reviews indicate the importance of taking vitamin D with fatty foods to maximize absorption and effectiveness (Read Review; Read Review). Overall, many users believe that maintaining adequate vitamin D levels plays a crucial role in supporting immune function and potentially preventing the growth of cancer cells, emphasizing not just the dosage but also the method of intake for optimal health results (Read Review).
9
Improved health status
2 people found this helpful
I trust this D3 as I had low levels and a history of cancer. It is the only D3 I take daily, along with K2 by Life Extension. Superior Source works well, and my D3 levels rose from 20 to 65-68 over time. It takes a while if you're depleted, but I feel better overall with fewer aches now that my D3 levels are normal.
7.5
Overall immune support
Daily intake of D3 is vital for the body, aiding calcium and phosphorus absorption important for bone growth. It also serves a protective function by reducing cancer cell growth and enhancing immune responses. D3 contributes to the normal functioning of the neuromuscular, endocrine, and immune systems.
7.5
Prevents cancer growth
Effective. This is a high-quality vitamin D supplement containing excellent ingredients. Each capsule delivers 5000 units, and the small tablets dissolve quickly under the tongue. It promotes muscle tone, boosts immunity, is essential for thyroid gland function and proper blood clotting; aids in restoring the protective membranes around the nerves; helps regulate blood pressure and heartbeat; and crucially, it prevents the growth of cancer cells.
7.5
Promotes well-being
3 people found this helpful
Good composition. No vitamin affects health like vitamin D (vitamin D3 or cholecalciferol). Research indicates that vitamin D plays a crucial role in preventing various health issues, including breast and colon cancer. With higher blood levels of vitamin D, the risk of heart attacks and other complications decreases. I bought vitamin D3 during a pandemic; it's small, easy to swallow, and advisable to take with fatty foods in a dosage of 5000 units. If my review was useful, please click Yes. Thank you!
7.5
Cancer prevention insights
5 people found this helpful
Good composition and easy to dissolve. Vitamin D (vitamin D3 or cholecalciferol) is vital for preventing diseases, including SARS and upper respiratory infections. Research shows that optimal vitamin D intake lowers the risk of many conditions, notably heart attacks, breast cancer, and colon cancer. I purchased vitamin D3 during the pandemic and found it small and easy to swallow, best taken with fatty foods in a large dosage of 5000 units. If you found my review helpful, please click Yes. Thank you!
7.5
Critical health benefits
4 people found this helpful
Good composition of lanolin. No vitamin boosts health like vitamin D (vitamin D3 or cholecalciferol). Current research shows that vitamin D may significantly prevent upper respiratory infection and various diseases, including breast and colon cancer. I bought vitamin D3 during the pandemic. Conventional tablets are small and easy to swallow, ideally taken with fatty foods in a large dosage of 5000 units. If my review was helpful, please click Yes. Thank you!
6
Restores deficiencies
Replenishing vitamin D deficiency promotes muscle tone, improves immunity, and is critical for thyroid function and normal blood clotting. It helps restore the protective sheath of nerves involved in blood pressure regulation and, most importantly, prevents the growth of cancer cells.
8
Vitamin D analogs in prostate cancer
[New insights of vitamin D-based therapy for prostate cancer].
We explored the potential benefits of a vitamin D analog in treating prostate cancer, which is a major cause of cancer-related deaths among men. Our work focused on understanding how this vitamin D form impacts cancer resistance and the tumor microenvironment. We used the Pten mouse model to observe the therapeutic effects of the vitamin D analog.
One significant finding was that combining this vitamin D analog with the chemotherapy drug docetaxel could overcome resistance seen in some prostate cancer cases. This combination showed promising results in primary cancer spheroids and xenografts from a patient whose cancer had resisted both docetaxel and androgen deprivation therapy.
These insights suggest that vitamin D analogs might offer new and effective strategies for managing advanced prostate cancer, particularly for those patients who have not responded well to standard treatments.
5
Vitamin D's role in breast disease
Levels of Serum 25-Hydroxy Vitamin D in Benign and Malignant Breast Disease Patients: An Observational Study.
We conducted an observational study to examine the levels of vitamin D in female patients with benign and malignant breast diseases. The research aimed to determine if there is a significant difference in vitamin D levels between those with non-cancerous conditions and those diagnosed with breast cancer.
During the study, we analyzed adult female patients admitted to a surgical department. Importantly, we excluded those who had taken vitamin D supplements recently or who had prior vitamin D deficiencies. By measuring serum vitamin D levels through a specific testing method, we were able to gather meaningful data about their relationship to breast health.
Our findings indicated a notable difference in average vitamin D levels when comparing the two groups. This suggests that inadequate vitamin D could be linked to an increased risk of developing breast cancer. Therefore, we explored the potential benefits of vitamin D supplementation as a preventive measure against breast cancer—though we acknowledge that larger and more controlled studies are essential to draw firm conclusions.
At the same time, we recognize that vitamin D has effects beyond bone health, and it is crucial to consider these broader impacts when discussing its role in cancer risk.
9
Vitamin D enhances chemotherapy delivery
Enzyme-responsive vitamin D-based micelles for paclitaxel-controlled delivery and synergistic pancreatic cancer therapy.
We explored the potential of vitamin D-based micelles designed to deliver paclitaxel, a key chemotherapy drug, specifically for pancreatic cancer treatment. This study focuses on developing enzyme-responsive micelles that not only carry paclitaxel but also utilize vitamin D as an integral part of the delivery system.
The micelles are made by combining vitamin D with polyethylene glycol, resulting in tiny structures that can release their drug load when interacting with enzymes typically found in pancreatic cancer cells. We observed that these micelles showed promising results in laboratory settings, enhancing the effectiveness of paclitaxel against aggressive pancreatic cancer cells compared to using paclitaxel alone.
Moreover, we noted that the vitamin D in the micelles may play a dual role: serving as both a hydrophobic core for drug delivery and a contributor to synergetic therapeutic effects. Our findings suggest that leveraging vitamin D in this way could increase the efficacy of existing treatment options for pancreatic cancer patients, which is particularly significant given the challenges currently faced in treating this disease.
References
Len-Tayon K, Metzger D, Laverny G. [New insights of vitamin D-based therapy for prostate cancer]. Med Sci (Paris). 2025;41:154. 10.1051/medsci/2025011
Soni D, Tiwari A, Kushwah PS, Dubey S, Khan S. Levels of Serum 25-Hydroxy Vitamin D in Benign and Malignant Breast Disease Patients: An Observational Study. Cureus. 2025;17:e78283. 10.7759/cureus.78283
Peixoto D, Ravasco JM, Blanco-Fernandez B, Veiga F, Concheiro A, et al. Enzyme-responsive vitamin D-based micelles for paclitaxel-controlled delivery and synergistic pancreatic cancer therapy. Mater Today Bio. 2025;31:101555. 10.1016/j.mtbio.2025.101555