小伙健身摄入太多蛋白质患肾炎!为什么健身要补充蛋白质?

2021-01-20 39健康网 39健康网

提起健身,有的人可能会联想起蛋白质,认为健身时及时补充蛋白质,可以为肌肉生长和修复提供充沛的原料,让身体肌肉更发达。

提起健身,有的人可能会联想起蛋白质,认为健身时及时补充蛋白质,可以为肌肉生长和修复提供充沛的原料,让身体肌肉更发达。

然而,蛋白质就一定是好东西吗?

据网上消息,近日江苏淮安一位26岁的蒋先生,突然感到腰部酸痛浑身乏力,经诊断竟是肾炎。蒋先生是一名健身达人,为了塑造完美身形,每日大量摄入蛋白质,导致肾脏负担过重。

蛋白质是什么?为什么健身要补充蛋白质?

蛋白质由碳、氢、氧、氮四种主要元素组成,这些元素先按一定比例和结构组成氨基酸,许多氨基酸再按一定方式连接成蛋白质。

蛋白质是生命活动中第一重要物质,蛋白质能供给机体能量,补充代谢消耗,生命的产生、存在与消亡都与它有关。

人在健身后的30-45分钟里,肌肉会像海绵地吸收养料,此时若补充一些蛋白质,身体会利用其重建和修复训练导致的肌纤维损伤,从而减轻身体第二天的疼痛感,并有助于肌肉组织的增长。这就是为什么健身达人强调要补充蛋白质的原因。

蛋白质摄入要有度,否则疾病会“找上门”!

蛋白质确实会给身体带来好处,但如果摄入过量,则会给身体造成一些麻烦,因为当身体消化蛋白质时,氮作为一种副产品会同时存在,肾脏不得不对其进行加工,使其随尿液排出体外。

摄入大量蛋白质,无疑使肾脏承受了极大的负担。特别是那些本来就患有肾脏疾病的患者,若继续大量摄入蛋白质,甚至会导致肾功能衰竭!

除了影响肾脏外,过量摄入蛋白质还会对增加骨质疏松、高脂血症、痛风的风险。

每天吃多少蛋白质合适?

那么,每天摄入多少蛋白质才合适呢?

不同人群蛋白质摄入量有所不同,根据《中国居民膳食指南(2016)》的膳食宝塔来搭配,就能满足每天所需的蛋白质,即每人每天摄入富含优质蛋白的畜禽肉类40-75克、水产品40-75克、蛋类40-50克、大豆和坚果类25-35克、奶和奶制品300克。

对于健身达人来说,在训练完后,选择能提供12-14克蛋白质的食物,比如喝一杯脱脂牛奶,加上一点浆果、一把咸饼干和奶酪,这些食物除了能补充蛋白质外,含有的碳水化合物也能加速肌肉修复,补充身体内储存的糖原。

而如果是肾功能不全、肝硬化、蛋白质过敏的人,应当根据自身情况制定不同的蛋白质摄入量。

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    2021-05-19 1487e56em29暂无昵称

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    2021-01-21 zb1235672
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    2021-01-21 villahu
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    2021-01-20 学医无涯

    适度健身,量出为入

    0

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