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营养学学习笔记01 | 饮食习惯,正在悄悄塑造我们

  • 2026-02-04 15:23:08
营养学学习笔记01 | 饮食习惯,正在悄悄塑造我们

在北大营养学的概述课上,老师让我们对号入座

她让我们想象两类人:

一类人有着适宜的体重,健康,精力充沛

另一类人过于瘦弱或者超重,缺乏活力,

甚至有或轻或重的慢性疾病

然后问:你更靠近哪一类?

这个问题像一面镜子,我几乎是下意识的叹了口气,

哎呀,我不就是那“另一类”吗?


老师道出原因:

长期的饮食习惯,可能就是塑造你现在的健康状况的那位“工程师”

紧接着老师又抛出了一个让我有点震撼的数字:

我们的一生平均要消耗十几到几十吨的食物

这位“工程师”真是功力深厚却无声无息

它以我们每天的三餐为材料

日复一日地进行着它的“塑造”工程

那些长期不吃早餐偏食挑食、

或多肉少菜、或高油高盐的人,

为许多慢性病埋下了伏笔;

那些饮食均衡、食物多样

充足饮水粗细搭配的人,

则像是请到了一位高明的建筑师,

每一餐都在为健康大厦添砖加瓦,

为充沛的精力提供稳定的燃料。


那么这位“工程师”最核心的原材料是什么呢?

老师说,它叫做营养素

营养素虽然不构成食物的全部,

却是食物产生健康效应的物质基石

为了帮助我们理解,她用了一个很生动的比喻:

如果把人体比作一部精密运行的机车——

蛋白质是 发动机

脂类是 车身

碳水化合物是 燃料

维生素与矿物质是 电气设备

膳食纤维是 管道清洁剂

,则是无处不在的润滑剂

他们各司其职,却又彼此协作,

共同保障我们这台人体机车”平稳而高效地运转


回想自己过往的饮食习惯,还真的有点“随意”了

虽然从碎片化的信息中知道:

要吃的有营养,多吃蛋白质、蔬菜和水果,

少吃垃圾食品。

但从未真正规划过一日三餐,

也没有细心观察、体会过食物与身体之间的关系

看来,如今这带点慢性问题的身体状态,

很大程度上

正是以往那些不经意的饮食选择,

经年累月“塑造”出的结果。


那么,

就让我从这位长期默默工作的“工程师”开始,

系统性的学习营养学;

在接下来的7周中,

我将跟随这门课程,逐一学习这几种营养素——

了解他们各自的性质、生理功能、食物来源

以及它们与部分疾病的关系

我想弄明白,

如何通过一日三餐,为这位“工程师”持续提供合适的优质材料,

让身体慢慢走向更健康的状态。

这是我系统学习营养学的第一篇日记。


改变,往往始于认知。

下一篇,就先去认识那位最强健的“发动机”—— 蛋白质


课程金句摘录:

1.长期的饮食习惯很可能是塑造你现在的健康状况的工程师我们的一生平均要消耗十几到几十吨的食物,不同的食物在不知不觉中勾画着我们未来的健康蓝图。

2.滋养身体的精华,也就是我们常说的营养素。营养素虽然不是食物的全部,但却是食物产生人体健康效应的最基础物质。

3.不同的营养素对人体的健康效应不尽相同,他们缺一不可,共同维持着人体的健康。如果把人体比作一部机车,蛋白质就像是机车的发动机,脂类就像是车身,碳水化合物就像机车的燃料,维生素、矿物质就像机车的电气设备。膳食纤维就像是管道清洁剂,而水就像是机车的润滑剂,他们各司其职,却又彼此协作,共同保障我们的人体机车正常运转。


本文学习内容来源于B站《北京大学营养学精品课》

仅作为个人学习过程中的理解与记录

#营养学学习笔记#健康学习笔记#饮食与健康#健康管理

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  125. /yingpanguazai/ssd/ssd1/www/no.67808.cn/vendor/topthink/framework/src/think/contract/LogHandlerInterface.php ( 0.86 KB )
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  128. /yingpanguazai/ssd/ssd1/www/no.67808.cn/vendor/topthink/think-helper/src/Collection.php ( 16.47 KB )
  129. /yingpanguazai/ssd/ssd1/www/no.67808.cn/vendor/topthink/framework/src/think/facade/View.php ( 1.70 KB )
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  131. /yingpanguazai/ssd/ssd1/www/no.67808.cn/vendor/topthink/framework/src/think/Response.php ( 8.81 KB )
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  1. CONNECT:[ UseTime:0.000387s ] mysql:host=127.0.0.1;port=3306;dbname=no_67808;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000737s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000358s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.001560s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000557s ]
  6. SELECT * FROM `set` [ RunTime:0.000250s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000591s ]
  8. SELECT * FROM `article` WHERE `id` = 461871 LIMIT 1 [ RunTime:0.005321s ]
  9. UPDATE `article` SET `lasttime` = 1770893117 WHERE `id` = 461871 [ RunTime:0.012601s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000331s ]
  11. SELECT * FROM `article` WHERE `id` < 461871 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000447s ]
  12. SELECT * FROM `article` WHERE `id` > 461871 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.002558s ]
  13. SELECT * FROM `article` WHERE `id` < 461871 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.026718s ]
  14. SELECT * FROM `article` WHERE `id` < 461871 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.011741s ]
  15. SELECT * FROM `article` WHERE `id` < 461871 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.008690s ]
0.140398s