Vitamin D isn’t just for bones—it may also influence breast cancer survival. Data presented at the American Society of Clinical Oncology meeting tracked 3,995 women with breast cancer and found that those with “sufficient” vitamin D levels (≥30 ng/mL) were 22% less likely to die from breast cancer over 10 years compared to women who were deficient (Shin et al., 2024).
The study also noted that Black women had the lowest vitamin D levels, which may have contributed to disparities in survival rates. While aggressive cancers could lower vitamin D levels, these findings align with previous studies suggesting that maintaining sufficient vitamin D may support better outcomes (Crew et al., 2009). Current recommendations are 600 IU/day for younger adults and 800 IU/day for adults over 70—an easy addition to your daily routine for both bone and overall health.
Shin JY, et al. Vitamin D levels and breast cancer survival: Analysis of 3,995 women. Presented at the American Society of Clinical Oncology Annual Meeting, 2024.
Crew KD, Shane E, Cremers S, et al. High prevalence of vitamin D deficiency in African American and white women with breast cancer. J Clin Oncol. 2009;27:3751–3757.
