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Until a decade ago, no dietary supplement (DS) databases with open access for public use existed in the United States. They were needed by researchers, since half of American adults use dietary DSs and, without information on supplement use and composition, exposures could not be estimated. These articles on Challenges and Future Directions for Dietary Supplement Databases describe subsequent progress. They begin by describing why information on DSs is needed by the government and how it is used to ensure the health of the public. Current developments include: application of DS information to meet public health needs; research efforts on DS quality, efficacy, and safety (as conducted by the Office of Dietary Supplements and other federal agencies); enhanced regulatory activities implemented by the FDA Office of Dietary Supplement Programs, the FDA Office of Enforcement, and the Federal Trade Commission; and initiatives for broader development and dissemination of DS databases for commercial and public use. Other contributions in this journal supplement describe the challenges of working with DSs and the progress that has been made. Additional articles describe surveys of DS use among the general US population and also among special groups such as high supplement users, illustrating why there is a need in the United States for information on supplements. Likely directions for the future of DS science are summarized.

Today's communities-whether they are currently strong, or struggling to survive-face difficult challenges if they want to be tomorrow's healthy, vibrant communities. The challenge for leaders and citizens of modern communities is not just to solve specific problems today. Their real challenge is to keep learning from their experience so they can keep improving their communities tomorrow. Results That Matter will provide a new governance framework for using valuable tools of community improvement-especially performance measurement and citizen engagement-to empower communities to achieve the out

Increased interest in the potential societal benefit of incorporating health economics as a part of clinical translational science, particularly nutrition interventions, led the Office of Dietary Supplements at the National Institutes of Health to sponsor a conference to address key questions about economic analysis of nutrition interventions to enhance communication among health economic methodologists, researchers, reimbursement policy makers, and regulators. Issues discussed included the state of the science, such as what health economic methods are currently used to judge the burden of illness, interventions, or health care policies, and what new research methodologies are available or needed to address knowledge and methodological gaps or barriers. Research applications included existing evidence-based health economic research activities in nutrition that are ongoing or planned at federal agencies. International and U.S. regulatory, policy and clinical practice perspectives included a discussion of how research results can help regulators and policy makers within government make nutrition policy decisions, and how economics affects clinical guideline development.

Launched in 2008, the Dietary Supplement Label Database (DSLD) permits the search of any term that appears anywhere on product labels. Since then, the database's search and download features have been periodically improved to enhance use for researchers and consumers. In this review, we describe how to customize searches and identify products and ingredients of interest to users in the DSLD, and provide the limitations of working with information derived from dietary supplement product labels. This article describes how data derived from information printed on product labels are entered and organized in the DSLD. Among the challenges are determining the chemical forms, types of extract, and amounts of dietary ingredients, especially when these are components of proprietary blends. The FDA announced new dietary supplement labeling regulations in May 2016. The 2017 DSLD has been updated to reflect them. These new regulations and examples cited in this article refer to this redesigned version of the DSLD. Search selection characteristics such as for product type and intended user group are as described in FDA guidance and regulations for dietary supplements. For this reason, some age groups (such as teens and seniors) and marketing recommendations for use (e.g., weight loss, performance, and other disease- or condition-specific claims) are not included in the search selections. The DSLD user interface features will be revised periodically to reflect regulatory and technologic developments to enhance user experience. A comprehensive database derived from analytically verified data on composition would be preferable to label data, but is not feasible for technical, logistic, and financial reasons. Therefore, a database derived from information printed on product labels is the only practical option at present for researchers, clinicians, and consumers interested in the composition of these products.