- JackAnDannSouther.com: Welcome To Herbs That Work Website
- JadeHealthProducts.com: Jade Health Products of Lomita
- Jdrf.org.au: Juvenile Diabetes Research Foundation in Australia
- Jdrf.org.uk: Juvenile Diabetes Research Foundation (JDRF)
- JenComedical.com: Welcome to Jenco Medical, Inc.
- JerseyShoreUniversityMedicalCenter.com: Jersey Shore University Medical Center
- Jgb.org: The Jewish Guild for the Blind
- JogJaBisnis.com: ---- Cellfood® oxygen nutrition : Liquid for Life!
- JohnsHopkinsHealthAlerts.com: Johns Hopkins Health Alerts
- JoslinCamps.org: Joslin Diabetes Center
- JoslinCmE.net: Joslin Diabetes Center | Professional Education - Learning from the Leaders
- JoslinResearch.org: Medical Research at the Joslin Diabetes Center in Boston
- JournalOfLongevity.com: Journal of Longevity
- JoyfulAging.com: Joyful Aging, a life style choice reference site for all of us over 50
- Jphealth.net: "Juice Plus+Â® is a whole food based product providing the nutrition found in a variety of fruits and vegetables, backed by clinical research. Juice Plus+Â®, the next best thing to fruits and vegetables."
- Jsumc.com: Jersey Shore University Medical Center
- Jy.eu: Juvenile Diabetes