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摘要：目的：通过本课题的研究了解不同饮食、餐前餐后对正常青年大学生血糖的影响。方法：十名血糖指标正常的青年大学生志愿者于三天的早晨分别进食以糖类、脂质、蛋白质为主的食物，并于餐前、餐后一小时、餐后两小时分别测量其血糖值，统计所测量的数据，分析研究不同的饮食在餐前餐后对血糖的影响。结果：进餐后，血糖值在餐后1h都有所上升，餐后2h后血糖值又有所下降。但食用的食物不一样，餐后血糖值上升的幅度也不一样。食用糖类餐后血糖上升明显，脂类次之，食用蛋白质对餐后血糖影响最小。结论：饮食对血糖有影响，餐后1h血糖上升，2h基本恢复空腹正常血糖值。糖类对血糖影响最大，脂类次之，蛋白质影响最小。52214
毕业论文关键词：血糖，饮食，食物血糖生成指数（GI）
Abstract：Objective: to understand the effect on normal young college students’ blood sugar after a meal or having different meals through the study of this subject. Methods: ten young college student volunteers having normal glycemic index eat carbohydrate, lipid, protein-based foods in the morning for three days respectively, and measured their blood sugar level before meals、one hour after meals and two hours after meals, make statistics about of the measured data, analyze the impact on blood sugar of different diets on meal after meal. Results: blood glucose levels have risen one hours after a meal, blood glucose levels have declined two hours after a meal. But the food they eat is not the same, and the rise magnitude in blood glucose levels after meals are not the same. Postprandial blood sugar level increased significantly after having carbohydrate foods, followed by lipids foods, the effect on blood glucose is minium after eating protein-based foods. Conclusion: diet have impact on blood glucose, blood glucose will rise one after a meal, after 2 hours the level returns to normal. Carbohydrates foods have the greatest impact on blood glucose, followed by lipids foods, protein-based foods have the minium effect on blood glucose .
Key words：glucose, diet, food glycemic index
目 录
1 前言 4
2 血糖概述 4
2.1 血糖正常值 4
2.2 血糖生成指数（GI） 4
3 实验对象和方法 4
3.1 实验对象 4
3.2 实验方法 5
3.2.1 实验器材 5
3.2.2 测试时间 5
3.2.3 血糖仪的使用 5
3.2.4 实验过程 6
4 结果与分析 6
4.1 实验数据 6
4.2 实验结果分析 7
4.2.1 统计学检验 7
4.2.2 餐前餐后的血糖变化 7
4.2.3 糖类、脂质、蛋白质对血糖的不同影响 10
4.2.4 餐前血糖波动原因 13
结 论 14
参考文献 15
致 谢 16
1 前言
血糖即血液中的糖份，血糖大部分都是葡萄糖（Glu）。大多数人体内的细胞所需要的能量从葡萄糖中获得，血糖必须保持在一定范围内以保持人体各器官和组织的需要。
血糖过高或过低都会损伤人体健康。血糖含量太低时，会引起头晕、四肢乏力等症状，严重时甚至会致使死亡；过高的血糖，尿糖由肾脏排泄，造成养分损失、感染等并发症的产生[1]。