vitamin D

Functions
  • Healthy immune function
  • Regulates calcium and phosphorus absorption
  • Regulates of calcium balance and uptake from bones (as active form Calcitrol)
  • Possibly helps prevent cancer, diabetes, heart disease, osteoporosis, and persistent, nonspecific musculoskeletal pain
Sources notes Best sources fish; Sun vitamin
Vegetable Sources Mushrooms
Fruit Sources
Nut and seed sources
Absorption and function notes Fat soluble – fat enhances absorption
Deficiency factors
  • Rickets (children), Osteomalacia (adults); Liver and kidney disorders; Osteoporosis
  • Conversion both from sunlight and diet to potent form (1,25-[OH]2D3) in liver – liver health essential
  • Estrogen and magnesium deficiencies play a role  in conversion as does boron
Toxicity
  • Irritability, joint pain
  • Greatest potential to be toxic of fat soluble vitamins

Adapted from:

Murray, M. (2005). Encyclopedia of Healing Food. New York, N.Y.: Atria Books

Bland, J., Costarella, L., Levin, B., Liska, D., Lukaczer, D., Schlitz, B., Schmidt, M., Lerman, R., Quinn, S., Jones, D. (2004). Clinical Nutrition: A Functional Approach, Second Edition. Gig Harbor, WA: The Institute for Functional Medicine.

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