Offspring of Female Rats Given Folic Acid Supplements Develop More Breast Cancer, St. Michael's Hospital Study Finds

Published: Feb 14, 2011 -- The daughters of rats who took folic acid supplements before conception, during pregnancy and while breast-feeding have breast cancer rates twice as high as other rats, according to a new study. They also had more tumours and developed them at a faster rate, according to the study led by Dr. Young-in Kim, a gastroenterologist at St. Michael's Hospital in Toronto.

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