Selected nutrition and fitness reading from government health sources. Curated September 2026.
Calculate a screening estimate and understand its limits.
Open the calculator ↗Every item below links directly to NIH, CDC, USDA or the U.S. Department of Health and Human Services. Research findings are described with their important limits, including when results come from animal studies.
An NIH funded study found that semaglutide extended lifespan and improved several measures in older female mice. NIH emphasized that the findings do not show the same results would occur in people and that human studies are still needed.
In adults with prediabetes, an intensive lifestyle program centered on nutrition, activity and weight management was linked with a lower long term risk of developing multiple chronic conditions compared with placebo.
NIH selected scientific teams for innovative research concepts exploring how nutrition and dietary interventions may influence autoimmune disease. The work is research focused and is not individual treatment guidance.
Review the federal evidence based recommendations for aerobic activity, muscle strengthening and movement across different stages of life.
Explore the current federal nutrition guidance designed to support health and reduce the risk of diet related chronic disease.
CDC explains adult BMI ranges and why BMI is only a screening measure that should be considered with other information about a person’s health.
Educational information only. Research updates can change as new evidence becomes available and should not replace personal medical advice.