- Macrobiotic Diet
- Macular Degeneration
- Magnesium
- Magnetic Therapy
- Magnolia
- Maitake
- Malaria
- Malignant Lymphoma
- Manganese
- Marijuana
- Marsh Mallow
- Martial Arts
- Massage Therapy
- McDougall Diet
- Measles
- Meditation
- Mediterranean Diet
- Medium-Chain Triglycerides
- Melatonin
- Memory Loss
- Ménière's Disease
- Meningitis
- Menopause
- Menstruation
- Mercurius Vivus
- Mercury Poisoning
- Mesoglycan
- Metabolic Therapies
- Methionine
- Mexican Yam
