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小酌可长寿?中国人最适合喝白酒养生?

2017-08-28 13:56:02   央广网

名副其实的“营养小宝库”

动物肝脏的营养价值的确很丰富,是个名副其实的营养小宝库。

首先,动物肝脏富含优质蛋白质,以猪肝为例,每百克含蛋白质19.3克。其次,肝脏含有丰富的铁,每百克猪肝中含22.6毫克,而且主要是血红素铁,容易被吸收利用,经常吃点肝有助于预防或改善缺铁性贫血。此外,肝脏中维生素A含量高,每百克猪肝中高达4972微克,远高于其他动物性食物。维生素A具有促进生长发育,维持正常视力、防治夜盲症,保持皮肤健康,以及增强机体免疫力等作用。

适量食用动物肝脏利大于弊

营养价值确实需要被承认,但是动物肝脏的胆固醇含量都比较高也是事实,比如每百克猪肝含胆固醇288毫克。虽说新版美国膳食指南取消了胆固醇摄入限量,但患有高胆固醇血症及其他相关心脑血管疾病的人还是应该限量食用。

说了肝脏的这么多好处和坏处,动物肝脏到底能不能吃呢?答案是能吃,需要适量吃,不能多吃。吃肝脏的营养收益毋庸置疑,至于其中所含的胆固醇和可能存在的有害物质,只要不大量食用,我们的身体完全有能力处理,无需担心。总体而言,适量食用肝脏利大于弊。

水果玉米、糯玉米,贪吃血糖会飙升!

水果玉米含糖超水果

水果玉米属于甜玉米的一种,既可像水果一样生吃,也可以煮着吃。水果玉米的蛋白质及维生素含量比普通玉米高1~2倍,硒含量则高出8~10倍,且易于消化吸收。虽然营养价值高,但同时它也是“高糖”食品,总糖量达30%左右,是一般水果的一倍左右,甚至比西瓜的含糖量还要高,其中大部分是蔗糖、葡萄糖,易引起血糖升高,普通人群不建议常吃,而糖尿病患者最好别吃。

彩色玉米富含花色苷

平时我们见到了玉米大多数都是白色或黄色,与白色玉米相比,黄色玉米籽粒的胚乳中富含类胡萝卜素,如玉米黄质、β-胡萝卜素等,对维护视力健康有益。

煮玉米最好带着玉米须

煮玉米的时候,也最好将玉米最外侧的厚皮剥掉,留下最内层的两层薄皮,同时将玉米须子洗干净,这样可以保留一种独特的玉米清香,且更易煮熟。一般玉米煮8分钟左右即可。待玉米煮好后,最好马上夹出沥干水分,否则玉米的味道就不浓郁了。

食疗助眠 膳食医生话你知

膳食医生建议通过调理饮食来改善睡眠质量,您需要注意以下几点:

◎减少饮食中 影响睡眠的不良因素

1.咖啡因的大量摄入。

我们平常喝的咖啡、茶饮、可乐中都含有咖啡因,应当注意慎重食用的。

2.睡前进餐难消化的饮食。

刺激性的食物、过饱的晚餐会增加人体胃肠的工作量,刺激肾上腺激素分泌,会让大脑容易兴奋。

3.醉酒的方式帮助入睡。

睡前少量饮酒会让人更容易入睡,但会扰乱睡眠,使头痛、盗汗。

有研究表明,酒精通常会扰乱快速眼动睡眠时间,导致深睡眠时间减少。所以,膳食医生不建议采用醉酒的方式帮助入睡,对身体也会产生其他不良影响。

4.其他。

睡前或者半夜醒来不要吸烟。大量饮水会影响睡眠。高盐饮食易导致口干、口渴、腹胀,从而加重失眠。

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