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Publication Detail
Dietary supplement use by individuals living with and beyond breast, prostate, and colorectal cancer: A cross-sectional survey
  • Publication Type:
    Journal article
  • Authors:
    Conway RE, Rigler FV, Croker HA, Lally PJ, Beeken RJ, Fisher A
  • Publication date:
  • Journal:
  • Status:
  • Country:
    United States
  • Language:
  • Keywords:
    Cancer, cancer survivor, diet, supplements
  • Notes:
    © 2021 The Authors. Cancer published by Wiley Periodicals LLC on behalf of American Cancer Society. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
BACKGROUND: Dietary supplements (DSs) are not recommended for the prevention of cancer recurrence. Although DS use is common in individuals living with and beyond cancer, its associations with beliefs about reduced cancer recurrence risk and demographic and health behaviors are unclear. METHODS: Adults (18 years old or older) who had been diagnosed with breast, prostate, or colorectal cancer were recruited through National Health Service sites in Essex and London. Participants completed a mailed survey and telephone or online 24-hour dietary recalls (MyFood24). Supplement use was collected during the dietary recalls. Associations between DS use and demographics, health behaviors, and beliefs about DSs and cancer were explored. RESULTS: Nineteen percent of 1049 individuals believed that DSs were important for the reduction of cancer recurrence risk, and 40% of individuals reported DS use. DS use was positively associated with being female (odds ratio [OR], 2.48; confidence interval [CI], 1.72-3.56), meeting 5-a-day fruit and vegetable recommendations (OR, 1.36; CI, 1.02-1.82), and believing that DSs were important for reducing cancer recurrence risk (OR, 3.13; CI, 2.35-4.18). DS use was negatively associated with having obesity (OR, 0.58; CI, 0.38-0.87). The most commonly taken DSs overall were fish oils (taken by 13%). Calcium with or without vitamin D was the most common DS taken by individuals with breast cancer (15%). CONCLUSIONS: DS use by individuals living with and beyond cancer is associated with demographic factors and health behaviors. A belief that DSs reduce the risk of cancer recurrence is common and positively associated with DS use. There is a need for health care professionals to provide advice about DS use and cancer recurrence risk.
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