Lesbians, gays, bisexuals, and transgender individuals (LGBTs) are becoming more visible in society, but where is the data to help researchers and clinicians understand their health needs? A new report by The National Academies Press assesses the state of science on the health status of LGBT populations and notes that the California Health Interview Survey (CHIS) is one of the few sources of data on LGBs in particular. To advance understanding of the health needs of all LGBT individuals, the authors recommend that more surveys collect data about the demographics of these populations. They also note the need for both improved methods for collecting and analyzing data as well as an increased participation of sexual and gender minorities in research.