'
NOW Supplements Vitamin D-3
SCIENTIFIC SCORE
Possibly Effective
Based on 14 Researches
7.5
USERS' SCORE
Good
Based on 7 Reviews
8.5
Supplement Facts
Serving Size: 1 Softgel
Amount Per Serving
%DV
Vitamin D3 (as Cholecalciferol) (From Lanolin)
1,250 mcg (50,000 IU)
6250%

Top Medical Research Studies

8
Vitamin D3 offers anti-cancer benefits
Liposomal encapsulation of cholecalciferol mitigates toxicity and delays tumor growth.
Study emphasizes isolated effects
We investigated the potential of vitamin D3, also known as cholecalciferol, in combating cancer while addressing concerns about its toxicity at higher doses. This study focused on enhancing the effectiveness of vitamin D3 through a clever method called liposomal encapsulation, which helps minimize side effects.

We prepared liposomal vitamin D3 (VD-LP) and conducted various tests to understand its capabilities. We found that this encapsulated form not only maintained high efficiency but also demonstrated improved stability. Our analyses showed that VD-LP had strong effects against cancer cells from colorectal, breast, and prostate cancers. Remarkably, it affected gene expression in immune cells, boosting elements that help fight infections and support the body's defenses.

Notably, VD-LP did a great job slowing tumor growth in mice and improved their survival rates without causing adverse effects like hypercalcemia, which is often a concern with regular vitamin D3 use. This evidence indicates that liposomal encapsulation of vitamin D3 could offer an effective cancer treatment strategy while minimizing unwanted side effects.

We believe this may pave the way for further research and clinical applications, showcasing vitamin D3 as a valuable addition to cancer therapy.
Read More
9
Vitamin D3 derivatives improve cancer treatment
Synthetic Studies on Vitamin D Derivatives with Diverse but Selective Biological Activities.
Highly relevant to cancer treatment
We focused on how modified forms of vitamin D3 can positively affect cancer treatment. The study revealed that a specific derivative, known as MART-10, demonstrated significant anti-tumor effects in mouse models. When administered at low doses, this compound showed robust anti-cancer activity against BxpC-3 cancer cells.

Additionally, we explored a new vitamin D analog, AH-1, which was found to enhance bone formation without the usual side effects associated with vitamin D treatments. This is particularly promising for osteoporosis patients. Another derivative named NS-74c even exhibited potent antagonist activity against the vitamin D receptor, indicating a potential for varied therapeutic uses.

Overall, our research highlighted the potential of vitamin D3 derivatives to tackle cancer while minimizing adverse effects. This approach opens new doors for therapeutic options in oncology, providing a glimpse into how modified vitamin D can improve treatment outcomes for patients.
Read More
8
Vitamin D's potential in CRC
Exploration and Identification of Vitamin D and Related Genes as Potential Biomarkers for Colorectal Tumors.
High relevance to cancer treatment
We delved into the intriguing relationship between vitamin D and colorectal cancer (CRC) to uncover how this nutrient might influence cancer development and treatment. The study involved measuring the serum levels of active vitamin D (1,25(OH)D) in different groups, including those with normal conditions, colorectal adenomas (CRA), and colorectal cancer (CRC).

Our findings highlighted a significant drop in vitamin D levels in CRC patients, with levels falling to 19.00 µg/mL compared to 42.99 µg/mL in normal individuals. Additionally, we conducted bioinformatics analysis to pinpoint genes linked to vitamin D and colorectal cancer, testing these using HCT116 and HT29 cell lines.

We observed that vitamin D can inhibit the growth and spread of colon cancer cells, leading to a reduction in the activity of certain cancer-promoting genes. Interestingly, our analysis also showed that a diagnostic model based on five key vitamin D-related genes exhibited high diagnostic efficiency. This reveals vitamin D's potential as a supportive approach for CRC diagnosis and treatment, offering hope for improved cancer management.
Read More

Most Useful Reviews

9.5
Benefits cancer patients
This is the best vitamin D3 I prescribe for my cancer patients. It's vital for those diagnosed with cancer. I usually recommend one capsule per week, or sometimes one daily for cancer patients, as it rapidly raises serum calcidiol levels and is safe with regular lab tests.
Read More
8.8
Strengthens immunity
I take vitamin D3 with fatty foods, as it plays a crucial role in 166 immune processes. It's essential for bone health and regulates over 2000 genes. It helps in suppressing cancer cell growth. A preventive dose for an adult is 5000 IU, and I take 50,000 IU every 10 days. Very comfortable!
Read More
8.8
Effective vitamin D3
Right amount of D3, clear labelling, effective for me. I have had a serious vitamin D3 deficiency since having childhood kidney cancer and losing a kidney. I took this brand of D3 every other day for six months, switching from another brand, and my doctor changed my dosage from 50,000 units of D3 every other day to twice a week as my levels reached a normal range. I’m very pleased with this product. Note: not suitable for vegetarians and vegans, as porcine and lanolin are present in the ingredients.
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 14 Researches
7.5
  • All Researches
9
Vitamin D enhances chemotherapy delivery
Enzyme-responsive vitamin D-based micelles for paclitaxel-controlled delivery and synergistic pancreatic cancer therapy.
Vitamin D's role in synergy
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
9
Vitamin D3 derivatives improve cancer treatment
Synthetic Studies on Vitamin D Derivatives with Diverse but Selective Biological Activities.
Highly relevant to cancer treatment
We focused on how modified forms of vitamin D3 can positively affect cancer treatment. The study revealed that a specific derivative, known as MART-10, demonstrated significant anti-tumor effects in mouse models. When administered at low doses, this compound showed robust anti-cancer activity against BxpC-3 cancer cells.

Additionally, we explored a new vitamin D analog, AH-1, which was found to enhance bone formation without the usual side effects associated with vitamin D treatments. This is particularly promising for osteoporosis patients. Another derivative named NS-74c even exhibited potent antagonist activity against the vitamin D receptor, indicating a potential for varied therapeutic uses.

Overall, our research highlighted the potential of vitamin D3 derivatives to tackle cancer while minimizing adverse effects. This approach opens new doors for therapeutic options in oncology, providing a glimpse into how modified vitamin D can improve treatment outcomes for patients.
Read More
8
Vitamin D analogs in prostate cancer
[New insights of vitamin D-based therapy for prostate cancer].
Examines vitamin D's cancer effects
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
8
Vitamin D3 offers anti-cancer benefits
Liposomal encapsulation of cholecalciferol mitigates toxicity and delays tumor growth.
Study emphasizes isolated effects
We investigated the potential of vitamin D3, also known as cholecalciferol, in combating cancer while addressing concerns about its toxicity at higher doses. This study focused on enhancing the effectiveness of vitamin D3 through a clever method called liposomal encapsulation, which helps minimize side effects.

We prepared liposomal vitamin D3 (VD-LP) and conducted various tests to understand its capabilities. We found that this encapsulated form not only maintained high efficiency but also demonstrated improved stability. Our analyses showed that VD-LP had strong effects against cancer cells from colorectal, breast, and prostate cancers. Remarkably, it affected gene expression in immune cells, boosting elements that help fight infections and support the body's defenses.

Notably, VD-LP did a great job slowing tumor growth in mice and improved their survival rates without causing adverse effects like hypercalcemia, which is often a concern with regular vitamin D3 use. This evidence indicates that liposomal encapsulation of vitamin D3 could offer an effective cancer treatment strategy while minimizing unwanted side effects.

We believe this may pave the way for further research and clinical applications, showcasing vitamin D3 as a valuable addition to cancer therapy.
Read More
8
Vitamin D's potential in CRC
Exploration and Identification of Vitamin D and Related Genes as Potential Biomarkers for Colorectal Tumors.
High relevance to cancer treatment
We delved into the intriguing relationship between vitamin D and colorectal cancer (CRC) to uncover how this nutrient might influence cancer development and treatment. The study involved measuring the serum levels of active vitamin D (1,25(OH)D) in different groups, including those with normal conditions, colorectal adenomas (CRA), and colorectal cancer (CRC).

Our findings highlighted a significant drop in vitamin D levels in CRC patients, with levels falling to 19.00 µg/mL compared to 42.99 µg/mL in normal individuals. Additionally, we conducted bioinformatics analysis to pinpoint genes linked to vitamin D and colorectal cancer, testing these using HCT116 and HT29 cell lines.

We observed that vitamin D can inhibit the growth and spread of colon cancer cells, leading to a reduction in the activity of certain cancer-promoting genes. Interestingly, our analysis also showed that a diagnostic model based on five key vitamin D-related genes exhibited high diagnostic efficiency. This reveals vitamin D's potential as a supportive approach for CRC diagnosis and treatment, offering hope for improved cancer management.
Read More

User Reviews

USERS' SCORE
Good
Based on 7 Reviews
8.5
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Benefits cancer patients
This is the best vitamin D3 I prescribe for my cancer patients. It's vital for those diagnosed with cancer. I usually recommend one capsule per week, or sometimes one daily for cancer patients, as it rapidly raises serum calcidiol levels and is safe with regular lab tests.
8.8
Strengthens immunity
I take vitamin D3 with fatty foods, as it plays a crucial role in 166 immune processes. It's essential for bone health and regulates over 2000 genes. It helps in suppressing cancer cell growth. A preventive dose for an adult is 5000 IU, and I take 50,000 IU every 10 days. Very comfortable!
Read More
8.8
Effective vitamin D3
Right amount of D3, clear labelling, effective for me. I have had a serious vitamin D3 deficiency since having childhood kidney cancer and losing a kidney. I took this brand of D3 every other day for six months, switching from another brand, and my doctor changed my dosage from 50,000 units of D3 every other day to twice a week as my levels reached a normal range. I’m very pleased with this product. Note: not suitable for vegetarians and vegans, as porcine and lanolin are present in the ingredients.
Read More
8.8
Reduces chronic diseases
The quantity is large, and the taste is normal. This vitamin boosts vitamin D levels, strengthens bones, and reduces chronic diseases such as cancer, diabetes, and heart disease. It enhances immune function and promotes healthy cell growth.
8
Supports immune system
Vitamin D, at 10,000 IU per capsule, helps absorb calcium and phosphorus, essential for bone growth. It reduces cancer cell growth and aids the immune system in fighting infections. Since sunlight is insufficient in many regions of Russia, taking vitamin D supplements is necessary for good health.
Read More
image