Maca: see encyclopedia entry

Macular degeneration: An eye disorder characterized by loss of central vision. see encyclopedia entry

Magnesium: see encyclopedia entry

Maitake: see encyclopedia entry

Malabsorption: Impaired absorption of nutrients during digestion, often due to diarrhea.

Malate: Any salt of malic acid.

Malic Acid: see encyclopedia entry

Manganese: A trace mineral required for many body functions, including blood clotting and protein digestion. see encyclopedia entry

MAO (monoamine oxidase) inhibitors: A class of antidepressants that inhibit the breakdown of certain neurotransmitters in the brain.

Melatonin: see encyclopedia entry

Menopause: see encyclopedia entry

Methionine: An essential, sulfur-containing amino acid.

Methylsulfonylmethane (MSM): see encyclopedia entry

Migraine: see encyclopedia entry

Milk Thistle: see encyclopedia entry

Mitochondria: Rod-shaped structures in cells that serve as miniature power plants, converting glucose into energy.

Molybdenum: An essential trace mineral required for the production of certain enzymes and for normal growth and development. see encyclopedia entry

Momordica: see encyclopedia entry

Mucilage: Soluble fiber found in beans, seeds, nuts, and grains.

Myocardial infarction: Damage to a portion of the heart resulting from inadequate blood supply to the area.

Myocardium: The thickest layer of the heart wall, composed of cardiac muscle.

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N-acetyl cysteine (NAC): A form of the amino acid cysteine. see encyclopedia entry

NADH: see encyclopedia entry

Naringen: A flavonoid found in grapefruit.

Nettle: see encyclopedia entry

Neural tube defect: A birth defect that happens when the brain, spinal cord, and vertebrae don't develop normally during the first month of pregnancy.

Neurotransmitters: Chemicals that transmit messages among brain cells and along nerves.

Niacin: Vitamin B-3. see encyclopedia entry

Night blindness: The inability to see well at night or in low light conditions. see encyclopedia entry

Nocturia: Disturbance of nightly sleep by the need to pass urine.

Non-essential amino acid: Any of the amino acids that can be made within the body from the nine essential amino acids. æ

Noni: see encyclopedia entry

Nopal Cactus: see encyclopedia entry

Norepinephrine: A hormone that constricts blood vessels and raises blood pressure. Also called noradrenaline.

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Olive Leaf: see encyclopedia entry

OPCs (oligomeric proanthocyanidins): Antioxidant flavonoids found in red wine and some plants. Most OPC supplements are made from grapeseeds or pine bark.

Osteomalacia: Softening of bones caused by a deficiency of calcium or vitamin D.

Osteoporosis: Loss of bone mass, resulting in brittle bones that are more susceptible to fracture. see encyclopedia entry

Oxide: Any compound of an element or radical with oxygen.

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