Newsletter
...vitamin D that provide enough to meet our daily needs. This is changing, however. While certain food sources can contribute significantly to vitamin D status, it is likely that vitamin...
Combined Nutrient Effects: Do vitamin D, omega-3, and vitamin C have a combined effect on colds and the flu among GrassrootsHealth participants?
...those who reported that they usually took supplemental vitamin C compared to those who did not (P=0.009). For colds, it was 9% lower (P=0.14). For vitamin D, omega-3, and vitamin...
Nutrients and Other Factors that Influence Vitamin D Levels and Dose-Response
...certain vitamins that compete with vitamin D, such as vitamin A in the form of retinol or retinyl palmitate (not beta-carotene), can cause a reduction in vitamin D levels. This...
It’s Official: Vitamin D Reduces the Incidence of Autoimmunity
...the body. Nearly all cells in the body have vitamin D receptors (VDRs). Intestine, bone, kidney, parathyroid glands, and immune cells (T cells, B cells, Dendritic Cells, Macrophages) have high...
Nutrients That Can Affect Your Vitamin D Level, Besides Vitamin D
...vitamin D co-nutrients, such as calcium, boron and zinc, can reduce vitamin D absorption and production. On the other hand, a high intake of certain vitamins that compete with vitamin...
Reducing Breast Cancer Risks: A Summary of Research on Vitamin D, Other Nutrients & Lifestyle Habits
...improving breast cancer outcomes. Breast Cancer and Vitamin D Reduced Risk of Breast Cancer Diagnosis – Reduced Risk of Breast Cancer Recurrence & Death Vitamin D and Cancer in General...
Vitamin D Supplements Could Reduce Risk of Influenza and COVID-19 Infection and Death
...and vitamin K2 combined important for vitamin D levels? https://www.grassrootshealth.net/blog/supplemental-magnesium-vitamin-k2-combined-important-vitamin-d-levels Rejnmark L, Bislev LS, Cashman KD, Eir¡ksdottir G et al. (2017) Non-skeletal health effects of vitamin D supplementation: A systematic...
Top Blogs to Answer Common Questions
...much vitamin D? Can vitamin D be toxic (part 1)? Can vitamin D be toxic (part 2)? How much vitamin D is toxic? Can vitamin D stored in my fat...
Lower Rates of Metastatic Cancer and Cancer Death with Vitamin D
...improving outcomes among women who get breast cancer, including omega-3s, magnesium, selenium, and vitamin C October 13th is Metastatic Breast Cancer Awareness Day. Metastatic cancer (also known as Stage 4...
Updated Vitamin D Recommendations for COVID-19 Protocol
...to use the GrassrootsHealth Vitamin D*calculator, which calculates customized daily vitamin D doses based on an individual’s current vitamin D level (if available), target vitamin D level, weight, and current...