[Some notions about possible harmlessness and/or toxicity of the antioxidant micronutriments].
Report # 8 of the Age Related Eye Disease Study (AREDS) showed the interest of a cocktail of antioxidant micronutrients for the uni- or bilateral intermediate forms and the unilateral evolved forms of Age related Macular Degeneration. This use of supranutritional amounts aiming at obtaining a therapeutic effect corresponds to the concept of "neutraceuticals" which can be opposed to the concept of nutritional amounts. Although the AREDS was carried out under strict conditions, the evolution of knowledge in micronutrition since its design has led to some criticism of both the amounts of the micronutrients and the composition of the formulation. For example several authors pointed out that beta-carotene used at 3 fold the daily recommendations could have harmful effects, especially among smokers or former smokers. Other authors pointed out that vitamin E, at amounts corresponding to 40 to 60 fold the amounts recommended could be correlated with a lethal risk. We develop here some notions about safety and/or harmlessness of the antioxidant micronutrients.
Desmettre
T
T
Centre d'Imagerie, Laser, et Réadaptation Basse Vision, Lambersart. desmettre@lille.inserm.fr
Lecerf
J M
JM
D000368:Aged; D000975:Antioxidants / Q000008:administration & dosage* / Q000009:adverse effects; D001205:Ascorbic Acid / Q000008:administration & dosage; D015897:Comorbidity; D006801:Humans; D008268:Macular Degeneration / Q000453:epidemiology / Q000517:prevention & control*; D018977:Micronutrients / Q000008:administration & dosage* / Q000009:adverse effects; D008875:Middle Aged; D012907:Smoking / Q000453:epidemiology; D014810:Vitamin E / Q000008:administration & dosage; D015032:Zinc / Q000008:administration & dosage; D019207:beta Carotene / Q000008:administration & dosage* / Q000009:adverse effects*
D000975:Antioxidants; D018977:Micronutrients; D019207:beta Carotene; D014810:Vitamin E; D015032:Zinc; D001205:Ascorbic Acid