Key clinical point: This case-control study indicated that high dietary phosphorus intake (>1800 mg/day) almost doubled the risk for breast cancer (BC), thus warranting the evaluation of a low-phosphate diet in patients with BC.
Major finding: A high dietary phosphorus intake >1800 mg per day vs a low intake of 800-1000 mg per day was associated with an increased risk of developing BC (relative risk 2.30; P = .07).
Study details: This nested case-control study analyzed the data of 74 women with BC and 296 age-matched control individuals from the Study of Women’s Health Across the Nation, USA.
Disclosures: This study did not receive any external funding. The authors declared no conflicts of interest.
Source: Brown RB et al. High dietary phosphorus is associated with increased breast cancer risk in a U.S. cohort of middle-age women. Nutrients. 2023;15(17):3735 (Aug 25). doi: 10.3390/nu15173735