Chebet JJ, Thomson CA, Kohler LN, et al. – In an analysis of data from postmenopausal black women enrolled in the Women's Health Initiative (WHI), researchers examined the link 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. According to findings, among black women enrolled in WHI, diet quality, physical activity, and their joined effect were not related to obesity-associated cancer risk and mortality.