Environmental Health Perspectives (EHP) is a monthly journal of peer-reviewed research and news published by the U.S. National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services. EHP's mission is to serve as a forum for the discussion of the interrelationships between the environment and human health by publishing in a balanced and objective manner the best peer-reviewed research and most current and credible news of the field. With an impact factor of 6.19, EHP is the top monthly journal in public, environmental, and occupational health and the second-ranked monthly journal in environmental sciences. The environmental health sciences include many fields of study and increasingly comprise a multidisciplinary research area. EHP publishes articles from a wide range of scientific disciplines encompassing basic research; epidemiologic studies; risk assessment; relevant ethical, legal, social, environmental justice, and policy topics; longitudinal human studies; in vitro and in vivo animal research with a clear relationship to human health; and environmental medicine case reports. Because children are uniquely sensitive to their environments, EHP devotes a research section specifically to issues surrounding children's environmental health. 

Interactive Dietary Reference Intakes: Use this tool to calculate daily nutrient recommendations for dietary planning based on the Dietary Reference Intakes (DRIs). These represent the most current scientific knowledge on nutrient needs, developed by the National Academy of Science’s Institute of Medicine. Individual requirements may be higher or lower than the DRIs.

Environmental Working Group (EWG): At EWG, our team of scientists, engineers, policy experts, lawyers and computer programmers pores over government data, legal documents, scientific studies and our own laboratory tests to expose threats to your health and the environment, and to find solutions. Our research brings to light unsettling facts that you have a right to know.

Cosmetic Safety Database: Skin Deep is a safety guide to cosmetics and personal care products brought to you by researchers at the Environmental Working Group.

World's Healthiest Foods: The Foundation's mission is to offer the latest scientific information about the benefits of the World's Healthiest Foods and the specific nutrients they provide. Equally important, we offer practical, simple and affordable ways to enjoy them that fit your individual lifestyle. 

Dietary Supplement Fact Sheets:  Dietary supplements can have an impact on the prevention of disease and on the maintenance of health. In the US, these ingredients are usually defined as including plant extracts, enzymes, vitamins, minerals, amino acids, and hormonal products that are available without prescription and are consumed in addition to the regular diet. Although vitamin and mineral supplements have been available for decades, their health effects have been the subject of detailed scientific research only within the last 15-20 years. It is important to expand this research to include the health effects of other bioactive factors consumed as supplements to promote health and prevent disease. Considerable research on the effects of botanical and herbal dietary supplements has been conducted in Asia and Europe where plant products have a long tradition of use. The overwhelming majority of these supplements, however, have not been studied using modern scientific techniques. Nor have they been extensively studied in population groups that may be at risk for chronic diseases. For many reasons, therefore, it is important to enhance research efforts to determine the benefits and risks of dietary supplements.

Office of Dietary Supplements: The mission of ODS is to strengthen knowledge and understanding of dietary supplements by evaluating scientific information, stimulating and supporting research, disseminating research results, and educating the public to foster an enhanced quality of life and health for the U.S. population.

Body Mass Calculator for Adults: If over age 20 years old, calculate your Body Mass Index here. Less than 25.0 is not overweight.

Body Mass Calculator for Kids: If between 2 years old and less than 20 years old, calculate your Body Mass Index here.