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炎热的夏天，如果能吃上一口冒着“仙气”的冰西瓜，就仿佛拥有了整个夏天的快乐！不知道大家有没有觉得，西瓜在冰镇以后，似乎更甜了。这是为什么呢？之所以冰镇后的西瓜会更甜，这是由于西瓜中的糖分非常丰富，其中果糖占比达到54%，而果糖的甜度受温度的影响很大。40℃以下时，温度越低，果糖甜度越高。这也是为什么感觉冰镇后的西瓜更甜的原因。实际上，除了西瓜，苹果、梨、荔枝等果糖含量较多的水果，在冰过之后也会变得更甜。虽然如此，但是冰西瓜不宜吃太多，因为吃太多冰西瓜对胃的刺激很大，容易引起脾胃损伤，所以应注意把握好吃的温度和数量。此外，冰镇西瓜富含的营养成分，远远低于室温存放下的西瓜，室温下的西瓜中，所含的番茄红素和β胡萝卜素，比冰镇西瓜都要高出很多。
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