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Breast cancer survival with vitamin D

During last decade several scientists mentioned that vitamin D may affect breast cancer survival. Recent studies confirm that vitamin D levels could affect breast cancer survival – women with higher vitamin D levels at diagnosis had better overall survival rates.

Scientists from California analyzed data from nearly 1,700 breast cancer patients and found that higher vitamin D levels at diagnosis were associated with better overall survival – this link was strongest in pre-menopausal women. At the same time, researchers noted lower vitamin D levels in women with advanced breast tumors.

High levels of vitamin D may halve breast cancer fatality. Vitamin D metabolites increase communication between cells by activating a protein that halts aggressive cell division. As long as vitamin D receptors are present, tumor growth is prevented and kept from expanding its blood supply. Vitamin D receptors are not lost until a tumor is very advanced. This is the reason for better survival in patients whose vitamin D blood levels are high.
Prof. Cedric F. Garland of the University of California, San Diego School of Medicine

Breast cancer survival with vitamin D

Scientists from New York performed similar studies and they concluded that for women diagnosed with breast cancer, high vitamin D levels in the blood may be tied to better odds of surviving and having tumors with less deadly characteristics. Actually breast cancer survival rates were higher in women with normal and high levels of vitamin D.

Tested women with breast cancer were split into three groups (with about 520 participants each), based on their blood levels of vitamin D. It was noted that women with advanced stages of breast cancer had low levels of vitamin D. In addition, lowest levels of vitamin D were noted in women who had not yet entered menopause and were diagnosed with triple-negative cancer, which tends to have worse outcomes than other types of breast cancers.

Follow-up was done during seven years – about 100 women with the lowest vitamin D levels died, compared to 76 women with the highest level of vitamin D.

Women with the highest vitamin D levels were 28% less likely to die of any cause during the study than women with the lowest vitamin D levels – actually breast cancer survival rates correlated with levels of vitamin D.

Song Yao, PhD., Associate Professor of Oncology

“Overall, we found a 30% reduction of all-cause mortality associated with vitamin D levels at the time of diagnosis.”
Song Yao, PhD., Associate Professor of Oncology, Department of Cancer Prevention and Control, Roswell Park Cancer Institute in Buffalo, New York.

Can vitamin D supplements improve outcomes for women with breast cancer? Is it possible to increase breast cancer survival rates with vitamin D?

Breast cancer survival with vitamin D

According to scientists, women with breast cancer who take vitamin D supplements could have higher chances for survival and fewer chances for recurrence.

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High vitamin D levels may increase breast cancer survival

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