Vitamin D and breast cancer, the link discovered by scientists that could save hundreds of lives

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Carlos Laforet Coll
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There is a link between vitamin D and breast cancer. According to research, vitamin D may increase the chances of surviving cancer.

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There is a link between vitamin D and breast cancer. According to research, vitamin D may increase the chances of surviving cancer.

Researchers claim that higher levels of vitamin D, they can help improve a person's chances of surviving breast cancer.

According to experts, most people in the United States do not have sufficient levels of vitamin D because only a few foods contain it naturally. Having enough vitamin D at the time of diagnosis is associated with better outcomes on the path to breast cancer recovery. This is what is reported by a new one study highlighted at the 2021 American Society of Clinical Oncology Virtual Annual Meeting.

Researchers measured vitamin D levels at the time of diagnosis, and then 10-year survival outcomes in nearly 4.000 people; it has been noted that thetaking vitamin D supplements, body mass index and race / ethnicity all affect the levels of vitamin D in the blood.

According to the researchers, for example, black women have a higher breast cancer death rate than white women. Additionally, people who maintain sufficient levels of vitamin D during and beyond breast cancer treatment have marked improvements in overall health. (Read also: High levels of vitamin D could really reduce Covid infection, the study)


Most vitamin D research has focused on colorectal and breast cancers. Studies have shown that higher blood levels of vitamin D they are associated with a lower risk of colorectal cancer, and have a higher chance of surviving if breast cancer.

Higher blood levels of vitamin D are defined as any level that meets or exceeds the “sufficient” clinical cut-off (≥30 ng / mL).

Secondo l’Office of Dietary Supplements del National Institutes of Health la vitamin D deficiency is less than 20 ng / mL.

Can Vitamin D Fight Breast Cancer? 

This is not exactly the case; According to studies a high amount of vitamin D can have positive effects and increase the chances of survive breast cancer, but more research is needed before any conclusions can be drawn about the vitamin's role in cancer outcome.

One of the studies on vitamin D and breast cancer was the VITAL (Vitamin D and Omega-3) Trial, the largest randomized clinical trial that tested vitamin D for cancer prevention, and it was found that supplementation did not reduce the risk of developing cancer anyway.

Vitamin D supplementation

Experts say that most people in the United States consume less than the recommended amounts of vitamin D. This may be because there aren't many ways to get it naturally; you can get vitamin D only from a few foods, or alternatively get it fromsun exposure. (Read also: Foods (plant and non-plant) richest in vitamin D)

The National Institutes of Health lists these vitamin D-rich food options:

  • Cod liver oil
  • trout
  • salmon
  • mushrooms
  • fortified milk and juices
  • fortified cereals

Here are the groups of people who may need integration:

  • postmenopausal women
  • men and women who take long-term steroids
  • elderly (confined to home or nursing homes / assisted living)
  • people who are pregnant and breastfeeding
  • people with chronic kidney disease
  • people with parathyroid disease
  • people with obesity

What is the link between dark skin and vitamin D?

The higher concentration of melanin in dark skin it reduces the formation of vitamin D from sun exposure.

In fact, it has been estimated that black individuals need 5 to 10 times the amount of sun exposure to achieve the same blood vitamin D levels as lighter-skinned individuals. In addition to the color of the skin, however, the concentration of vitamin D it also depends on other factors, such as adiposity, skin pigmentation, vitamin D binding protein polymorphisms and genetics.

If you are unsure if you are getting enough vitamin D, talk to your doctor and nutritionist.

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