Department of Nutrition, Food Science, Physiology and Toxicology, University of Navarra, 31008 Pamplona, SPAIN.
J Am Coll Nutr. 2009 Dec;28(6):648-56. doi: 10.1080/07315724.2009.10719797.
Overall diet quality measurements have been suggested as a useful tool to assess diet-disease relationships. Oxidative stress has been related to the development of obesity and other chronic diseases. Furthermore, antioxidant intake is being considered as protective against cell oxidative damage and related metabolic complications.
To evaluate potential associations between the dietary total antioxidant capacity of foods (TAC), the energy density of the diet, and other relevant nutritional quality indexes in healthy young adults.
Several anthropometric variables from 153 healthy participants (20.8 +/- 2.7 years) included in this study were measured. Dietary intake was assessed by a validated food-frequency questionnaire, which was also used to calculate the dietary TAC and for daily energy intake adjustment.
Positive significant associations were found between dietary TAC and Mediterranean energy density hypothesis-oriented dietary scores (Mediterranean Diet Score, Alternate Mediterranean Diet Score, Modified Mediterranean Diet Score), non-Mediterranean hypothesis-oriented dietary scores (Healthy Eating Index, Alternate Healthy Eating Index, Diet Quality Index-International, Diet Quality Index-Revised), and diversity of food intake indicators (Recommended Food Score, Quantitative Index for Dietary Diversity in terms of total energy intake). The Mediterranean Diet Quality Index and Diet Quality Index scores (a Mediterranean and a non-Mediterranean hypothesis-oriented dietary score, respectively), whose lower values refer to a higher diet quality, decreased with higher values of dietary TAC. Energy density was also inversely associated with dietary TAC.
These data suggest that dietary TAC, as a measure of antioxidant intake, may also be a potential marker of diet quality in healthy subjects, providing a novel approach to assess the role of antioxidant intake on health promotion and diet-based therapies.
整体饮食质量的测量被认为是评估饮食与疾病关系的有用工具。氧化应激与肥胖和其他慢性疾病的发展有关。此外，抗氧化剂的摄入被认为可以防止细胞氧化损伤和相关的代谢并发症。
评估健康年轻成年人的食物总抗氧化能力（TAC）、饮食能量密度和其他相关营养质量指数之间的潜在关联。
本研究纳入了 153 名健康参与者（20.8±2.7 岁）的多项人体测量变量。通过验证后的食物频率问卷评估饮食摄入情况，该问卷还用于计算饮食 TAC 和日常能量摄入调整。
饮食 TAC 与地中海能量密度假说导向的饮食评分（地中海饮食评分、替代地中海饮食评分、改良地中海饮食评分）、非地中海假说导向的饮食评分（健康饮食指数、替代健康饮食指数、饮食质量指数-国际、饮食质量指数-修订版）以及食物摄入多样性指标（推荐食物评分、总能量摄入的饮食多样性定量指数）呈正相关。地中海饮食质量指数和饮食质量指数评分（分别为基于地中海和非地中海假说的饮食评分），其较低的值表示更高的饮食质量，随着饮食 TAC 的增加而降低。能量密度也与饮食 TAC 呈负相关。
这些数据表明，饮食 TAC 作为抗氧化剂摄入的衡量标准，也可能是健康受试者饮食质量的潜在标志物，为评估抗氧化剂摄入对健康促进和基于饮食的治疗的作用提供了一种新方法。
