Vitamin D

Category:
Vitamins

Type:
Fat Soluble

Forms/Names:
Cholecalciferol, Ergocalciferol. Non-Food Sources: Sunlight

Functions:
Calcium and phosphorus metabolism, bone formation, calcium absorption

Deficiencies:
Rickets in children, osteomalacia in adults, abnormal growth, joint pain, soft bones, muscle weakness, bony deformities, neuromuscular irritability

Toxicity:
Raised blood calcium, constipation, weight loss, irritability, weakness, nausea, kidney stones, mental retardation, physical retardation, hypercalcemia, hypercalciuria, soft tissue calcifications

Recommended Intakes:
RDAs: (with daily sunlight exposure)
200 IU for adults (5 µg) / day
300 IU for infants birth to 6 months / 7.5 µg
400 IU for children ages 1-24 / 10 µg

Food Sources:
Fortified milk/dairy, fish, liver, eggs