Vitamin D(ビタミンD)

Characteristics of nutrients

  • Fat-soluble vitamin
  • For vegetable foods, provitamin D 2
    (It changes to vitamin D 2 by exposure to ultraviolet rays)
  • For animal foods, provitamin D 3
    (It changes to vitamin D 3 by exposure to ultraviolet rays)

Function of nutrients

  • Maintain normal calcium concentration in blood
  • Help calcium deposit on bone



When nutrients are deficient

  • Because it is generated by ultraviolet rays, there is no worry of deficiency
  • Osteoporosis, osteomalacia
  • Teeth wobble, lower jaw bones weaken


When nutrients overdose

  • There is no intake of excessive vitamin D in normal diet
  • Please be careful of overdose due to “supplements”
  • Hypercalcemia (blood calcium concentration rises)
    Renal dysfunction
    Anorexia, vomiting, polyuria etc.


Foods rich in nutrients

  • Grilled salmon
  • Dried shiitake mushroom
  • Pacific saury
  • Cloud Ear Mushroom
  • young of the sardine



Nutrient list
Click for details

EnergyPantothenic acid
Saturated fatty acids n-3 fatty acids
Dietary fiber n-6 fatty acids
Vitamin ACalcium
Vitamin DMagnesium
Vitamin ERin
Vitamin KZinc
Vitamin B1Copper
Vitamin B2Manganese
Vitamin B6Lodine
Vitamin B12Selenium
Vitamin CChromium
Folic acidiron