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  1. Osteopathic medicine: What kind of doctor is a D.O.? - Mayo Clinic

    Nov 29, 2022 · You know what M.D. means, but what does D.O. mean? What's different and what's alike between these two kinds of health care providers?

  2. Glucosamine - Mayo Clinic

    May 21, 2025 · Glucosamine is a natural compound found in cartilage — the tough tissue that cushions joints. In supplement form, glucosamine is harvested from shells of shellfish or made …

  3. Pancreatitis - Symptoms and causes - Mayo Clinic

    Pancreatitis can occur suddenly or build up over time. Learn about symptoms, causes and treatment of this digestive system disorder that can cause serious illness.

  4. Cholesterol: Top foods to improve your numbers - Mayo Clinic

    May 2, 2024 · It's not clear whether food with plant sterols or stanols lowers your risk of heart attack or stroke — although experts assume that foods that lower cholesterol do cut the risk. …

  5. Vitamin B-12 - Mayo Clinic

    Aug 13, 2025 · Vitamin B-12 is a vitamin the body uses to make and support healthy nerve cells. It's also used to make healthy red blood cells and the genetic material inside cells called DNA. …

  6. Arthritis pain: Do's and don'ts - Mayo Clinic

    Apr 4, 2025 · Arthritis is a leading cause of pain and limited mobility worldwide. There’s plenty of advice on managing arthritis and similar conditions with exercise, medicines and stress …

  7. Calorie Calculator - Mayo Clinic

    If you're pregnant or breast-feeding, are a competitive athlete, or have a metabolic disease, such as diabetes, the calorie calculator may overestimate or underestimate your actual calorie needs.

  8. Narcissistic personality disorder - Symptoms and causes

    Apr 6, 2023 · A narcissistic personality disorder causes problems in many areas of life, such as relationships, work, school or financial matters. People with narcissistic personality disorder …

  9. Long COVID: Lasting effects of COVID-19 - Mayo Clinic

    Aug 23, 2024 · COVID-19 can have lasting symptoms that affect many parts of the body. Learn more about the symptoms and effects of long COVID.

  10. Swollen lymph nodes - Symptoms & causes - Mayo Clinic

    Apr 25, 2025 · Swollen lymph nodes most often happen because of infection from bacteria or viruses. Rarely, cancer causes swollen lymph nodes. The lymph nodes, also called lymph …