本研究之主要目的在於探討大學生之節食行為傾向，及節食行為之相關因素(大學生之性別、體型經驗、家庭社經地位、同儕、媒體、父母飲食教養行為)。研究對象為台灣地區日間部之大學生，採分層隨機叢集抽樣方式，以研究者自編之「大學生節食行為與相關因素之研究調查問卷」進行問卷調查，有效樣本984人。研究結果發現:以「節食行為量表」得分及研究者自訂之篩選標準判斷，大學生多屬於低節食傾向(63.8%)，中節食傾向次之(30.8%)，而高節食傾向很少(5.4%)，顯示節食傾向不高。大學生的節食行為乃以本身體型作考量，體型肥胖度愈高者，其節食傾向愈高。請大學生回想12之前的父母飲食教養行為結果發現，當父母鼓勵節食性增加，其子女成年後的節食傾向亦增加，而父母之鼓勵節食性因子女體型肥胖度增加而增加。一般而言，大學生的節食傾向高低與其體型肥胖度成正比，但由他們曾採用的瘦身方式來看，卻仍有人選擇一些不利的方式，值得注意。女大學生的節食傾向高於男大學生，且受到社會因素之同儕與媒體影響愈大，則其節食傾向愈高。其中媒體此一變項預測力非常高，對於大學生節食行為影響最大；因此，欲指導大學生正確的節食觀念與方法，應重視媒體之影響力。

The purpose of this study is to understand the tendency of dieting and related factors (i.e. sex, bodyweight history, family socioeconomic status, peer pressure, media influence and food related parenting style) of undergraduate students in Taiwan. A total of 984 undergraduate students were recruited from 16 universities selected by stratified random cluster sampling method. A self-administered questionnaire〝The Undergraduates* Dieting Behaviors and Related Factors Questionnaire〞as the measurement instrument which included peer and media influence scales, food related parenting style scale and dieting scale. The results indicated that Taiwanese college students had low tendency of dieting. Most (63.8%) of the undergraduates had low tendency of dieting, 30.8% of them are middle tendency of dieting and only5.4% of them are high tendency of dieting. The undergraduates* dieting behaviors are significantly related to their bodyweight. The higher the body weight, the higher the tendency of dieting. The tendency of dieting is also positively related with parents* encouragement of dieting during childhood. The results also showed that some undergraduates adopted unhealthy ways to lose weight.Female students have a higher tendency of dietinever be neglected.