vitamins

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Vitamin C Ascorbic Acid

Vitamins

Vitamin C Ascorbic Acid

  • Required for synthesis of collagen (structural component of blood vessels, tendons, and bone), norepinephrine (neurotransmitter), and carnitine (amino acid involved in energy production); promotes wound healing; supports immune function and gum health; and has antioxidant properties.
  • Used to prevent cataracts, macular degeneration, heart disease, stroke, cancer, and colds; improve wound healing and response to stress; reduce bronchial spasms in asthmatics; and prevent lead toxicity.
  • Severe deficiency causes scurvy (bleeding, bruising, hair and tooth loss, joint pain, and swelling), which is rare today.
  • Marginal deficiencies are common among the elderly, alcoholics, and those with cancer, chronic illness, or stress. Symptoms include fatigue, easy bruising, poor wound healing and appetite, anemia, and sore joints.
  • Drugs that deplete vitamin C: oral contraceptives, aspirin, corticosteroids, and furosemide.
  • Large doses of vitamin C (greater than 1,000 mg/day) may reduce the effect of warfarin (blood-thinning drug).
  • The Linus Pauling Institute recommends 400 mg of vitamin C daily, which is higher than the RDA, yet much lower than the UL. Most multivitamin supplements provide 60 mg of vitamin C.
  • Natural and synthetic forms are chemically identical and have the same effects on the body.
  • Mineral salts of ascorbic acid (i.e., calcium ascorbate) are buffered and therefore less acidic and less likely to cause upset stomach.

  • Food Sources : Citrus fruit, tomatoes, red peppers, broccoli, strawberries, and potatoes
  • Adequate Intake : (mg/day)
    Men = 90
    Women = 76
    Pregnancy = 85
    Lactation = 120
  • Upper Limit : (mg/day)
    Men = 2,000
    Women = 2,000
    Pregnancy = 2,000
    Lactation = 2,000
  • Side Effects : Upset stomach, diarrhea, kidney stones (in those at risk), excess iron absorption


  • Vitamin D
    Vitamin A
    Vitamin B12 Cobalamin
    Vitamin B5 Pantothenic Acid
    Vitamin K
    Vitamin E
    Vitamin B6 Pyridoxine
    Vitamin B2 Ribofl avin
    Biotin
    Vitamin C Ascorbic Acid
    Vitamin B1 Thiamine
    Vitamin B3 Niacin
    More ...

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