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Recommended dietary allowance: support from recent research.

D Hornig1, F Strolz

  • 1Vitamins and Fine Chemicals Division, F. Hoffmann-La Roche Ltd, Basel, Switzerland.

Journal of Nutritional Science and Vitaminology
|January 1, 1992
PubMed
Summary
This summary is machine-generated.

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Optimal vitamin C intake, beyond preventing scurvy, is crucial for preventing chronic diseases like cancer and cardiovascular issues. Higher intake levels are recommended for overall health and disease prevention.

Area of Science:

  • Nutritional Science
  • Preventive Medicine

Background:

  • Antioxidant vitamins (C, E, beta-carotene) show synergistic roles in preventing major diseases.
  • Optimal health is achieved through dietary optimization, not just deficiency prevention.
  • Current vitamin C recommendations may be insufficient for optimal health and disease prevention.

Purpose of the Study:

  • To address the controversy surrounding optimal vitamin C intake.
  • To propose varying vitamin C intake levels for different health goals.
  • To highlight the role of vitamin C in preventing non-communicable diseases.

Main Methods:

  • Review of existing evidence on antioxidant vitamins and disease prevention.
  • Analysis of factors influencing vitamin C requirements.
  • Proposal of tiered vitamin C intake recommendations.

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Main Results:

  • Vitamin C requirements exceed those for preventing scurvy.
  • A tiered approach to vitamin C intake is proposed: deficiency prevention, general health, and disease prevention.
  • Higher vitamin C intake may prevent cancer, cardiovascular diseases, and cataracts.

Conclusions:

  • Optimal health requires higher vitamin C intake than previously thought.
  • Tailored vitamin C recommendations can address individual needs and environmental factors.
  • Vitamin C supplementation can reduce the incidence of non-communicable diseases and associated medical costs.