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Vitamin D
(ergocalciferol, cholecalciferol)
DRI (RDA or AI for Adults)
- Under age 51: 200 IU. Ages 51-70: 400 IU. Over 70: 600 IU.
Pregnancy/Lactation: 200 IU.
1 mcg of cholecalciferol = 40 IU.
Adult Maintenance - Therapeutic Range
Major Sources (1,300 IU to 90 IU per serving)
- Cod liver oil, herring oil, pacific oysters, salmon oil, mackerel,
fortified milk, most fish. Regular sunlight on un-sunblocked skin can provide
all you need.
Non-Therapeutic Importance
- Really a prohormone; essential for normal growth and development;
important for formation of normal bones and teeth; influences absorption and metabolism of
phosphorus and calcium; toxic in large quantities.
Deficiency Symptoms
- Children: rickets
- Adults: osteomalacia
Increased Risk for Deficiency
- Alcoholism
- Anticonvulsant drug therapy
- Elderly
- Insufficient sun exposure
- Intestinal disorders: Crohn's disease, diverticulosis, gastric
resection, tropical sprue
- Kidney disease
- Liver disease
- Parathyroid disorder
Possible Therapeutic Applications
CONSULT WITH A HEALTH PROFESSIONAL FIRST: Supplementation may
prevent, correct deficiencies caused by, or be helpful with, the following conditions:
- Acquired Immunodeficiency Syndrome (AIDS, HIV)
- Aging
- Asthma
- Cancer
- Cardiac Arrhythmias
- Celiac Disease
- Crohn's Disease
- Diabetes
- Eating Disorders (anorexia, bulimia)
- Headache (migraine)
- Hypertension (high blood pressure)
- Immunodepression (immune function)
- Multiple Sclerosis (MS)
- Osteoarthritis
- Osteoporosis
- Periodontal Disease
- Psoriasis
- Rheumatoid Arthritis
- Scleroderma
- Ulcerative Colitis
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