苹果有什么营养价值？
苹果的营养价值：
1、苹果酚：苹果中含有神奇的“苹果酚”，极易在水中溶解，易被人体所吸收。这种神奇的“苹果酚”具有七种功效：一是抗氧化作用，可保持食物新鲜；二是消除异味，可去鱼腥、口臭；三是预防蛀牙；四是能抑制黑色素、酵素的产生；五是能抑制活性氧发生，可预防因活性氧引起的各种生活习惯病；六是能抑制血压上升，预防高血压；七是能抑制过敏反应，有一定的抗敏作用。
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2、苹果酸：苹果中含有17种氨基酸，其中7种为人体必需但自身又无法合成的氨基酸。有多种健身、防病、疗疾的功能。苹果中含有鞣质和多种果酸，可以帮助食物消化，并有促进胃收敛的功能，加速食物的消化吸收。苹果酸可以稳定血糖，预防老年糖尿病，因此糖尿病患者宜吃酸味苹果。
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3、维生素H：苹果中含有维生素H，具有防止白发和脱发、保持皮肤健康的作用。维生素H又称生物素、辅酶R，是水溶性维生素，也属于维生素B族。它是合成维生素C的必要物质，是脂肪和蛋白质正常代谢不可或缺的物质。维生素H是一种维持人体自然生长和人体机能所必需的水溶性维生素，也是维持正常成长、发育及健康的必要营养素，无法经人工合成。
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4、维生素C：苹果中含有丰富的维生素C。维生素C是心血管的保护神、心脏病患者的健康元素。美国的研究人员还证明：“从新鲜的水果中直接摄取维他命C要比口服药剂更为有效”。每天吃一个红富士，就可以满足人体每日所需的大部分维他命C。
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5、番茄红素：苹果中所含的富含番茄红素和花青素，够预防心脏病、泌尿系统疾病和前列腺癌。
苹果的功效与作用：
1、生津止渴：苹果可以润喉去燥，使人清爽舒适。适宜口干、眼干、思虑过度、睡眠不足、讲话过多的人群。
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2、润肺除烦：苹果富含维生素，可以保护呼吸道上皮，提高免疫球蛋白的功能，预防呼吸道感染。滋阴润肺，去除肺燥肺热。使人呼吸畅通舒适。
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3、健脾：适用于脾气虚弱，运化无力所致的脘腹胀满，大便溏泄，食欲不振，肢倦乏力等症。
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4、解酒：苹果能解乙醇毒性，并能解酒后迅速排泄。可解酒后头痛脑涨，脸红等症状。缓解酒精在胃内吸收，保护胃粘膜。
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5、养心：苹果能保护心脏，保护心肌细胞，预防或是缓解心悸、心率失常等。
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6、抗癌：每天吃苹果1个以上可以使结肠直肠癌、食道癌、喉癌、乳腺癌和卵巢癌等癌症发生危险降低9%～42%。
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