Diets High in Saturated Fats in Teenage Years May Raise Risk of Breast Cancer in Adults

Diets High in Saturated Fats in Teenage Years May Raise Risk of Breast Cancer in Adults
Young women whose diets where high in saturated fat and low in mono- and polyunsaturated fat as teenagers have greater breast density and a higher risk of developing breast cancer, according to the study "Dietary Fat Intake During Adolescence and Breast Density Among Young Women," published in the Cancer Epidemiology, Biomarkers and Prevention journal. During adolescence, when breasts undergo structural changes and develop, breast tissue is particularly sensitive to stimuli. Although an association between fat intake and breast cancer risk is not established, the researchers hypothesized this lack could be due to disregard for fat intake during adolescence, when breasts develop. The team analyzed data from the Dietary Intervention Study in Children (DISC) randomized trial, which enrolled 633 children, 301 of which were girls ages 8-10, in 1988, who registered their dietary habits on several occasions throughout their adolescence. One DISC follow-up study, DISC06, used magnetic resonance imaging to measure breast density in 177 of the female DISC participants when they were 25–29 years old, allowing researchers to look for associations between dietary intake in adolescence and breast density in young adulthood. Investigators adjusted the data for multiple variables, including education, race, number of births, adulthood fatness, and total energy and protein intake. They then observed that higher intake of saturated fat and lower intake of mono- and polyunsaturat
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