Daily Dosage:

RDA: 200 IU

Supplementary Ranges: 400-1000 IU

Toxicity 10,000 IU excessive intake may be toxic to certain individuals if taken regularly.

Toxicity Symptoms: Appetite loss, diarrhea, dizziness, increased urination, muscular weakness, nausea, vomiting, weariness

Augmenting Nutrients:

A, choline, C, F, calcium, phosphorus

Anti-Vitamins:

Laxatives, mineral oil, phenobarbitol

Natural Sources:

Sunlight, 5-10 minutes, 2 or 3 times/week. Can be stored in liver for winter.

Animal Sources:

Bone meal, butter, egg yolks, fish liver oils, herring, organ meats, tuna fish (in oil), sardines

Liver (beef ¼ lb = 40 IU; Milk 1 cup = 100 IU

Plant Sources:

Shiitake mushrooms, chlorella, (chlorophyll reduces our requirement for D)

Bodily Parts Affected:

Bones, heart, kidney, nervous system, skin, teeth, thyroid gland

Bodily Functions Facilitated:

 Calcium & phosphorus metabolism (bone formation), heart action, nervous system maintenance, normal blood clotting, normal growth in children, skin respiration

Deficiency Symptoms:

Brittle & fragile bones, burning in mouth & throat, diarrhea, insomnia, irregular heartbeat, low blood calcium, myopia, nervousness, pale skin, poor metabolism, rickets, sensitivity to pain, soft bones & teeth

Therapeutic Applications:

Acne, alcoholism, allergies, arthritis, cholesterol (high), colds, conjunctivitis, cystitis, diabetes, eczema, menopausal symptoms, myopia, osteomalacia, osteoporosis, psoriasis, skin/eye/respiratory problems, stress, tooth decay & pyorrhea (preventive)