Centers for Disease Control and Prevention
Adult BMI Categories
Used for adult BMI category context and BMI threshold explanations.
Source policy
WellCalcs is not a medical practice. We use public references, transparent formulas, trial publications, and cautious assumptions to make planning numbers easier to understand before a user talks with a qualified professional.
Centers for Disease Control and Prevention
Used for adult BMI category context and BMI threshold explanations.
American Journal of Clinical Nutrition / PubMed
Used for Mifflin-St Jeor resting energy estimation context.
New England Journal of Medicine
Used as one public clinical-trial reference for semaglutide weight-loss education.
New England Journal of Medicine
Used as one public clinical-trial reference for tirzepatide weight-loss education.
American College of Cardiology
Used for blood-pressure category and health-discussion context.
National Institute of Diabetes and Digestive and Kidney Diseases
Used for general activity, nutrition, and weight-management planning context.
A source can support a formula or educational range, but it does not make a calculator result personal medical advice. Individual health decisions depend on history, labs, symptoms, medications, coverage rules, and professional judgement.