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29/05/2017

Latest report on breast cancer confirms alcohol as one of key risk factors

Published in May 2017, the report is the most rigorous, systematic, global analysis of the scientific research currently available on diet, weight, physical activity and breast cancer, and which of these factors increase or decrease the risk of developing the disease.

For the report, the global scientific research on diet, nutrition, physical activity and breast cancer was gathered and analysed by a research team at Imperial College London, and then independently assessed by a panel of leading international scientists.

The report reviewed evidence from 119 studies from around the world. The studies examined more than 12 million women and over 260,000 cases of breast cancer.

The report updates the breast cancer section of our 2007 Second Expert Report and the 2010 CUP Breast Cancer Report.

Key findings: premenopausal breast cancer

There is strong evidence that:

  • consuming alcoholic drinks increases risk
  • undertaking vigorous physical activity decreases risk
  • being overweight or obese between the ages of about 18 and 30 years decreases risk
  • being overweight or obese in adulthood before the menopause decreases risk
  • developmental factors leading to greater linear growth (marked by adult attained height) increase risk
  • factors that lead to greater birthweight, or its consequences, increase risk
  • breastfeeding decreases risk (breast cancer type unspecified) in the mother

Key findings: postmenopausal breast cancer

There is strong evidence that:

  • consuming alcoholic drinks increases risk
  • being physically active (including vigorous physical activity) decreases risk
  • being overweight or obese between the ages of about 18 and 30 years decreases risk
  • being overweight or obese throughout adulthood increases risk
  • greater weight gain in adulthood increases risk
  • developmental factors leading to greater linear growth (marked by adult attained height) increase risk
  • breastfeeding decreases risk (breast cancer type unspecified) in the mother

Source: WCRF

To find out more, please visit: http://www.wcrf.org/int/blog/articles/2017/05/alcoholic-drink-increases-breast-cancer-risk