摘要:
研究血清反式脂肪酸(TFA)及过氧化指标与膳食摄入的关系,为大学生合理膳食提供依据.方法 招募18~25岁的健康大学生172名.采用食物频率法调查过去3个月内水果、蔬菜、乳类、肉类食物及其制品,以及鱼虾贝类、速食、甜品和油炸食品的摄入频率以及平均每次摄入量,并静脉抽取空腹血5 mL测定血清TFA、丙二醛(MDA)和超氧化物歧化酶(SOD).结果 男生中有19.4%每周摄入油炸食品大于300 g,女生此比例为9.1%;回族学生每周摄入油炸食品大于300 g的比例为18.9%,汉族学生为8.7%.男女学生血清TFA和回汉族血清TFA,MDA水平差异均有统计学意义(t值分别为-2.81,-3.12,-2.81,P值均<0.01).多元回归分析结果显示,血清TFA水平主要与油炸食品、速食、甜品以及乳类及其制品摄入有关,血清MDA水平与油炸食品、蔬菜及制品的摄入有关.结论 为防止TFA和丙烯酰胺可能引起的健康危害,应减少油炸食品、速食和甜品、奶茶和奶油等乳制品的摄入,多食用蔬菜及其制品.
关键词:
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反式脂肪酸 /
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过氧化物 /
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膳食 /
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营养状况 /
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学生
Abstract:
Objective To study association between serum trans fatty acid(TFA) and superoxide dismutase(SOD) with dietary intake among college students,and to provide a basis for college students' rational dietary.Methods A total of 172 volunteers aged 18-25 were recruited.Food frequency questionnaire was used to investigate the frequency and the average intake of fruits,vegetables,milk class,meat and aquatic product,fast food,dessert,fried food in the past three months.Serum TFA,MDA and SOD were determined by extraction of venous blood on an empty stomach.Results More than 300 g fired food was consumed in male(19.4%),female(9.1%),Hui(18.9%) and Han(8.7%) students each week.The differences of serum TFA between male and female,as well as TFA and MDA between Hui and Han students were statistically significant(t =-2.81,-3.12,-2.81,P<0.01).According to the multiple regression analysis,serum TFA was related to consumption of fried and fast food,dessert and dairy products,and serum MDA was related to the intake of fried food and vegetables.Conclusion In order to decrease the health hazard of TFA and acrylamide,people should reduce the intake of fried and fast food,dessert and milky tea or cream,and eat more vegetables and its products.
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