SAMe: see encyclopedia entry

Saw Palmetto: see encyclopedia entry

Scurvy: A deficiency disease caused by a prolonged lack of vitamin C.

Selenium: An essential trace mineral used to make glutathione. see encyclopedia entry

Serotonin: A neurotransmitter involved in mood and emotions.

Shark Cartilage: see encyclopedia entry

Silica: see encyclopedia entry

Slippery Elm: see encyclopedia entry

Soluble fiber: Dietary fiber that dissolves in water to form a gel.

Soy/soybean: see encyclopedia entry

Spirulina: see encyclopedia entry

St. John's Wort: see encyclopedia entry

Stearate: An compound of stearic acid.

Stearic acid: A saturated fatty acid widely distributed in plant and animal fats (also known as octadecanoic acid).

Steroids: Fat-soluble compounds usually in the form of hormones or bile acids. Steroid hormones are manufactured in the adrenal glands from cholesterol.

Stroke: Injury to the brain or spinal cord caused by a blood clot, hemorrhage, or shortage in blood supply to the brain due to a narrowed or blocked artery.

Sulfur: An essential mineral found in every tissue of the body. It's needed to make many proteins, vitamins, enzymes, and hormones.

Systolic: Blood pressure upon contraction of the heart muscle. It is the first number given in a blood pressure reading.

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Tardive dyskinesia: A syndrome characterized by involuntary repetitive movements of the oral and facial muscles, most often presented as a side effect of long-term administration of anti-psychotic drugs.

Taurine: A sulfur-containing amino acid.

Tea Tree: see encyclopedia entry

T-helper cell: A type of lymphocyte involved in the direct attack against invading organisms.

Thiamin: Vitamin B-1. see encyclopedia entry

Thymus: A gland located at the base of the neck that produces hormones vital to the immune system.

Thyroid: A small gland in the neck that produces hormones that regulate metabolism.

Tocopherol: Another name for vitamin E. See Alpha tocopherol.

Tocotrienols: Antioxidant compounds closely related to vitamin E, often found in natural-source vitamin E supplements with mixed tocopherols.

Toxicity: A poisonous reaction that damages cells or impairs body functions.

Toxin: A poison that impairs body functions.

Transrectal ultrasonography: A procedure in which sound waves generated by a probe inserted into the rectum are bounced off of the prostate gland. A computer uses the echoes produced by the sound waves to create a picture called a sonogram.

Tribulus: see encyclopedia entry

Triglycerides: Fat storage compounds that comprise the major lipid portion of the diet.

Tryptophan: An essential amino acid used in the body to make niacin.

Tyrosine: A non-essential amino acid.

Ubiquinone: Another name for coenzyme Q10.

Urethra: The tube that carries urine from the kidneys to the bladder.

Urinary tract infection: see encyclopedia entry

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