Breast Cancer treatment – Vitamin D was the most-popular supplement – Jan 2023

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Dietary Supplement Use in Women Diagnosed with Breast Cancer

The Journal of Nutrition Volume 153, Issue 1, Jan 2023, Pages 301-311 https://doi.org/10.1016/j.tjnut.2022.12.007
Meg Hauer 1 †, Anthony M. Rossi 2 †, Betsy C. Wertheim 3, Hilary B. Kleppel 2, Jennifer W. Bea 3 4 5, Janet L. Funk 3 5 6

Vitamin and Mineral supplementations and reduced use of Chemo Therapy

About 75% of vitamin D recommendations were by Health Care Providers

Background
Vitamins, minerals, and natural product (NP)-derived dietary supplements are commonly used among women with breast cancer, where interactions with treatments and the disease are possible, emphasizing the importance for health care providers to be aware of supplement use.

Objectives
The study aimed to investigate current vitamin/mineral (VM) and NP supplement use among those diagnosed with breast cancer, including usage based on tumor type or concurrent breast cancer treatments and primary information sources for specific supplements.

Methods
Social media recruiting to complete an online questionnaire self-reporting current VM and NP use and breast cancer diagnosis and treatment information primarily attracted US participants. Analyses, including multivariate logistic regression, were performed on 1271 women who self-reported breast cancer diagnosis and completed the survey.

Results
Most participants reported current VM (89.5%) and NP (67.7%) use, with 46.5% (VM) and 26.7% (NP) using at least 3 products concurrently. Top-reported (>15% prevalence) products were vitamin D, calcium, multivitamin, and vitamin C for VM and probiotics, turmeric, fish oil/omega-3 fatty acids, melatonin, and cannabis for NP. Overall, VM or NP use was higher among those with hormone receptor-positive tumors. Although overall NP use did not differ according to current breast cancer treatments, VM use was significantly less common among those currently undergoing chemotherapy or radiation, but higher with current endocrine therapy. Among current chemotherapy users, specific VM and NP supplements with possible adverse effects were still used by 23% of respondents. Medical providers were the primary information source for VM, whereas NP information sources were more varied.

Conclusions
Because women diagnosed with breast cancer commonly reported concurrent use of multiple VM and NP supplements, including those with known or underexplored risks (or benefits) in breast cancer, it is important for health care providers to inquire about and facilitate discussions regarding supplement use in this population.
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171+ VitaminDWiki Breast Cancer pages with VITAMIN D in the title

This list is automatically updated

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VitaminDWiki – Overview Breast Cancer and Vitamin D contains

• 25 Meta-analyses of Vitamin D and Breast Cancer
    example: 2X reduction of deaths from Breast Cancer if have enough Vitamin D.
• Appears that having lots of Vitamin D will reduce by 3 X the chance of Breast Cancer
     wonder just how much more proof is needed
• Breast Cancer 4X more likely if have poor genes
•     Cancer - Breast category listing has 259 items along with related searches
• Breast Cancer treatment – Vitamin D was the most-popular supplement – Jan 2023
• Breast Cancer again associated with low vitamin D – 15th meta-analysis Sept 2020
• Vitamin D reduced Breast Cancer mortality in 9 out of 9 studies, yet still no consensus – April 2019
• Vitamin D both prevents and treats Breast Cancer – 2019

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Warning: High-dose vitamin D greatly increases the strength of some chemotherapies

Chemotherapy and vitamin D - many studies has the following