Medical Disclaimer

Upstream Longevity is an educational publication. Our writers are not doctors or licensed healthcare professionals. Everything on this site is for general information and is not medical advice.

• Nothing here is intended to diagnose, treat, cure or prevent any disease.
• Dietary supplements are not medicines. Statements about them have not been evaluated by the U.S. Food and Drug Administration.
• Talk to a qualified clinician before starting or stopping supplements, changing your diet, fasting, or starting a new exercise or cold-exposure routine, especially if you are pregnant, take medication or have a medical condition.
• Never ignore professional medical advice or delay seeking it because of something you read here.

Research summaries reflect our understanding at the time of writing. Science changes, and studies can be misread. Always check the original sources we link.

Last updated Nov 7, 2026