The influence of smoking on vitamin C status in adults.

摘要: To further define the relation between smoking and vitamin C status, dietary serum levels of 11,592 respondents in second National Health Nutrition Examination Survey (NHANES II) were analyzed. Smokers 20 cigarettes daily had lowest intake (79 mg, 95% CI:73, 84) (0.82 mg/dl, CI: 0.77, 0.86; 46.6 mumol/L, 43.7, 48.8), while smokers 1-19 decreased (97 mg; 90, 104 mg) (0.97 0.92, 1.03; 55.1 52.2, 58.5) compared to who never smoked (109 105, 113 1.15 1.11, 1.18; 65.3 63.0, 67.0, respectively). This inverse association both was independent age, sex, body weight, race, alcoholic beverage consumption. Following adjustment for intake, negative correlation cigarette persisted. The risk severe hypovitaminosis (serum less than or equal 0.2 mg/dl; 11.4 mumol/L) increased smokers, particularly when not accompanied by supplementation (odds ratio 3.0, 2.5, 3.6). These data suggest that even though adversely affects preferences rich foods, occurs independently intake.