glossary

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D

D.Ac. Doctor of Acupuncture
D.C. Doctor of Chiropactic
D.H.M. Doctor of Homeopathic Medicine
D.Om. Doctor of Oriental Medicine
Daidzein belongs to the group of isoflavones. Daidzein and other isoflavone compounds, such as genistein, are present in a number of food sources including soybeans.
Decoction similar to an infusion or a "tea" except a decoction is made by actually boiling the herb in water. A decoction is sometimes used to extract the constituents of roots, bark, and thick leaves. For most leaves and flowers, and for beverages, an infusion is more desirable. (See infusion.) To make a decoction bring fresh cool water to a boil, drop the herb in the water and allow it to boil for about 3 to 5 minutes, then turn the heat off and allow it to steep for an additional 10 to 15 minutes. Keep covered through the entire process. Unless otherwise specified, one part chopped fresh plant material should be used in 9 parts water. When using dried herbs use one part dried plant material in 19 parts water. As with an infusion, the plant material should be strained out of the liquid before it is consumed.
Dehydroepiandrosterone or DHEA a hormone produced by the adrenal glands, and also available as a nutritional supplement, which is a precusor for other hormones, particularly the sex hormones in both men and women. The body's production of DHEA declines with age making supplementation desirable.
Detoxification the process of eliminating the build-up of wastes and toxins from the body, often accomplished with fasting, adhering to specific diets, colon therapy, vitamin therapy, chelation therapy, and hyperthermia.
DHA a long chain polyunsaturated omega 3 fatty acid. The brain is 60% fat tissue and 30% of the structural lipid in the gray matter of the brain is composed of DHA. When the body receives DHA, it helps the brain to learn and concentrate. DHA is also needed for visual function and retina health. New research is also showing that DHA may help maintain the brain structure over the long term and help ward off dementia.
Diagnosis the art and science of identifying a disease by its signs and symptoms.
Dietary Fibre consists of both soluble (dissolves in water) and insoluble (does not dissolve in water) fibre. Diets high in dietary fibre and low in fat may have a protective effect against many chronic illnesses, including heart disease and some cancers, and may reduce LDL ("bad") cholesterol.
Dietary Supplements congress defined the term "dietary supplement" in the Dietary Supplement Health and Education Act (DSHEA) of 1994. A dietary supplement is a product (other than tobacco) taken by mouth that contains a "dietary ingredient" intended to supplement the diet. Dietary ingredients may include vitamins, minerals, herbs or other botanicals, amino acids, and substances such as enzymes, organ tissues, and metabolites. Dietary supplements come in many forms, including extracts, concentrates, tablets, capsules, gelcaps, liquids, and powders. They have special requirements for labeling. Under DSHEA, dietary supplements are considered foods, not drugs.
Dilation the act of opening up wider (e.g., dilation of the pupils of the eyes, the bronchial tubes of the lungs, etc.).
Diuretic increasing or an agent that increases the secretion of urine.
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