目標：探討在大學校園便利商店中，進行營養訊息與價格環境介入對於低熱量食品的銷售影響。方法：以兩間大學校園的便利商店為對象，一間為實驗商店，一間為對照商店。實驗目標商品為低脂鮮乳、無糖優酪乳、低糖豆漿、無糖綠茶及無糖可樂，對照商品是與實驗商品同品牌但熱量較高的常規商品。實驗階段分為基準期、訊息介入期(提供熱量訊息)、價格介入期(價格降低約25%)、訊息價格介入期。依收銀系統記錄商品的每日銷售量。結果：整體上實驗介入對於低熱量目標商品的銷售反應有提升效果。實驗商店與對照商店於各實驗階段的目標商品銷售率反應不同，在實驗商店，目標商品於訊息價格介入期的銷售率顯著高於基準期。結論：在公共衛生實務上，未來可透過價格與購買點營養訊息的策略，促進消費者對健康目標食品的選購。

Objectives: The purpose of this study was to examine the effects of environmental interventions designed to increase nutritional information and price incentives on the sale of low-calorie foods in convenience stores on college campuses. Methods: Two college convenience stores participated in the study: one was the experimental store, and the other served as a control. The target foods consisted of low-fat milk, no-sugar yogurt, no-sugar tea, low-sugar soybean milk, and no-sugar cola. The control foods were regular products containing more calories. The experimental periods consisted of baseline, nutritional information intervention, price decrease intervention (the price of the target foods decreased by approximately 25%), and a combination of information and price intervention. The sales of food items were monitored. Results: The percentages of low-calorie foods sold differed by store and intervention period. In the experimental store, the percentages of low-calorie foods sold during the combination information and price intervention period were significantly higher than those during baseline. Conclusions: Public health policies can influence the dietary environment through pricing and nutritional information displayed at the point-of-purchase to encourage customers to select healthier foods.