食用西瓜对2型糖尿病患者血糖的影响

目的　探讨同等热能的馒头与西瓜的餐后血糖反应。方法　随机选取空腹血糖＜ １１ ．１ｍｍｏｌ／Ｌ 的２型糖尿病患者２５ 例，分别在间隔１ 周的两顿早餐仅给予热能相等的５０ 克馒头或６１１ 克去皮去籽西瓜作为试验餐，比较进食两种食物后的血糖情况。结果　西瓜的餐后血糖高峰时间（ 均在餐后半小时） 较多数馒头餐（２２ 例在餐后１ 或１ ．５ 小时，３ 例在餐后半小时） 明显提前，而两种食品的血糖高峰值与血糖曲线下面积无明显差异（Ｐ＞ ０．０５）。结论　非严重高血糖的２ 型糖尿病患者可吃少量西瓜，但必须扣除同等热能的粮食。

The effect of watermelon on blood glucose in type 2 diabetic subjects

Objective To study the postprandial blood glucose responses to exchangeable amounts of steamed bun and watermelon in type 2 diabetic patients. Methods Twenty five cases of type 2 diabetes mellitus were randomly selected.They were asked to consume 50g steamed bun or 611g watermelon without rind and seeds in two separate breakfasts,and their postprandial blood glucose responses were compared. Results The timelag to peak blood glucose values after watermelon (all in half an hour) were shorter than those for steamed bun in most subjects(three cases in half an hour,twenty two cases in an hour or one and half hour),but the mean peak blood glucose value and blood glucose area to the two meals were similar (P>0.05). Conclusion Well-controlled type 2 diabetic patients may eat small amount of watermelon,but it is necessary to deduct exchangeable amount of foodstuff.