Chebet JJ, Thomson CA, Kohler LN, et al. - Via analyzing data from postmenopausal black women (aged 50-79 years) in the Women's Health Initiative (WHI), researchers explored the connection between diet quality, physical activity, and their joint influence on obesity-associated cancer risk and mortality. Baseline physical activity (MET-hours/week of Moderate-to-Vigorous Physical Activity [MVPA]) and diet quality (Healthy Eating Index [HEI]-2015) were included as exposure variables. Overall, data from 9,886 black women, with baseline mean BMI values of 31.1 kg/m², were evaluated. The study sample had a mean HEI-2015 score of 63.2 and mean MVPA of 5.0 MET-hours/week. An average of 13 years of follow-up was performed. Findings suggested no association of diet quality, physical activity, and their combined effect with obesity-related cancer risk and mortality in black women enrolled in the WHI.