Post-9/11 United States (US) veterans identifying as sexual minorities are examined to determine the prevalence of disordered eating (DE) behaviors in this population and ascertain their correlation with discrimination because of marginalized identities.

• A survey assessing eating behaviors, mental health, and military experiences was completed by a national sample of recently separated post-9/11 US veterans comprising of women (N = 805; heterosexual [n = 656]; lesbian [n = 51]; bisexual [n = 98]) and men (N = 558; heterosexual [n = 540]; gay [n = 11]; bisexual [n = 7]).

• Findings support the prevalence of DE across gender and sexual orientation identity groups.

• There were higher rates of DE and consequent impairment among women identifying as bisexual and men identifying as gay when compared with veterans identified as heterosexual.

• Heterosexual and lesbian female veterans showed no differences in DE, but there was lower DE-related impairment in lesbian women.

• A positive correlation of experiencing any discrimination in the military was observed with DE.