
If you are considering a supplement, read the list of ingredients, she says although this is not always foolproof. “I’ve seen very expensive protein supplements that claim to be high quality but they might not really be beneficial for the average healthy adult,” she says. “It could just be a waste of money.”
But there are certain situations that do warrant extra protein. “Anytime you’re in an anabolic state or building muscle,” Pipitone says, such as if you’re an extreme endurance athlete, training for a marathon, or you’re a body builder. If you’re moderately exercising for 150 minutes a week, as the Centers for disease Control and Prevention recommends, or less than that, you’re probably not an extreme athlete. Extreme athletes expend lots of energy breaking down and repairing and building muscles. Protein can give them the edge they need to speed along that process.
Vegans can benefit from protein supplements since they do not eat animal-based protein sources like meat, dairy, or eggs. And, for someone always on-the-go who may not have time for a meal, a protein snack bar can be a good option for occasional meal replacement. Also, individuals recovering from surgery or an injury can also benefit from extra protein. So, too, can older people. At around age 60, “muscles really start to break down,” says Kathryn Starr, an aging researcher at Duke University School of Medicine, “and because of that, in addition to the fact that as we get older our body's ability to break down protein is reduced, the protein needs of an older adult actually increases.”
她说,如果你正在考虑服用补充剂,请阅读成分清单,尽管这并不总是万无一失的。她说:“我见过非常昂贵的蛋白质补充剂,声称质量高,但它们对普通健康成年人可能并不真正有益。”“这可能只是在浪费钱。”
但在某些情况下确实需要额外的蛋白质。Pipitone说:“当你处于合成代谢状态或锻炼肌肉时,比如你是一名极限耐力运动员,为马拉松进行训练,或者你是一名健美运动员。”如果你按照美国疾病控制与预防中心(Centers for Disease Control and Prevention)的建议,每周适度锻炼150分钟,或者少于150分钟,那么你可能不是一名极限运动员。极限运动员需要消耗大量的能量来分解、修复和锻炼肌肉。蛋白质可以给它们加速这一过程所需的优势。
纯素食者可以从蛋白质补充剂中受益,因为他们不吃动物性蛋白质来源,如肉类、乳制品或鸡蛋。而且,对于那些总是忙碌的人来说,他们可能没有时间吃饭,蛋白质小吃店可能是偶尔替代正餐的好选择。此外,从手术或受伤中恢复的人也可以从额外的蛋白质中受益。老年人也可以。杜克大学医学院(Duke University School of Medicine)的衰老研究人员凯瑟琳·斯塔尔(Kathryn Starr)说,在60岁左右,“肌肉真的开始分解,正因为如此,除了随着年龄的增长,我们身体分解蛋白质的能力会降低,老年人对蛋白质的需求实际上是增加的。”
句子成分分析:
If you're [moderately] exercising[for 150 minutes][a week], ||as the Centers (for Disease Control) and Prevention recommends.
句子语法结构详解:
(you're = you are)
* if 为连词,引导条件状语从句。
* exercising 为谓语,采用现在进行时。
* a/an 为不定冠词,在这里表示“每”,“每一”的意思。
* as 为连词,引导状语从句。
* recommends 为谓语,采用一般现在时。动词采用第三人称单数形式。
* you 为人称代词。are 为助动词。the 为定冠词。
句子相关词汇解释:
Vocabulary:
if [if] | conj. | 1) 如果, 倘若 2) 是否 |
moderately ['mɔdәrәtli] | ad. | 1) 一般地; 勉强地 2) 适度;适量;适中 |
exercise ['eksәsaiz] | vi. | 锻炼,训练,操练 |
minute ['minit] | n. | 1) 分钟,分 2) 一会儿,一会儿的工夫 |
week [wi:k] | n. | 1) 周,礼拜 2) 一周 |
as [æz] | conj. | 1) 由于, 因为 2) 当...时, 在...期间, 随着... |
center ['sentә] | n. | 1) 中央,中心 2) 中心区 |
disease [di'zi:z] | n. | 1) 疾病 2) 顽疾,弊端,痼疾 |
control [kәn'trәul] | n. | 1) 控制(能力),操纵(能力) 2) 限制,约束,管制 3) 操纵装置,开关,按钮 4) 管理权,支配权 |
and [ænd] | conj. | 1) 和, 与, 同, 并 2) 然后,接着 |
prevention [pri'venʃәn] | n. | 预防,防止,防范 |
recommend [,rekә'mend] | vt. | 1) 推荐,举荐,介绍 2) 劝告,建议 |
句子成分分析:
Vegans can benefit from protein supplements || since they do not eat animal-based protein sources (like meat, dairy, or eggs).
句子语法结构详解:
* benefit 为谓语。
* since 为连词,引导状语从句。
* eat 为谓语,采用一般现在时。
* can 为情态动词。they 为人称代词主格。do 为助动词。
句子相关词汇解释:
Phrase:
benefit from... | 得益于,得利于 |
Vocabulary:
vegan ['vegәn] | n. | 严格素食主义者(不吃肉、奶、蛋等,有的不用动物产品) |
protein ['prәuti:in] | n. | 蛋白质 |
supplement ['sʌplimәnt] | n. | 1) 增添物,补给物 2) 报纸增刊 |
since [sins] | conj. | 1) 因为; 既然,由于 2) 自从...以来, 从...以后 |
eat [i:t] | vt. | 吃 |
source [sɔ:s] | n. | 1) 来源 2) 原始资料 |
like [laik] | prep. | 1) 例如, 比方 2) 像,类似, 相似 |
meat [mi:t] | n. | 1) (食用)肉;肉类 2) 重要的部分,有趣的部分 |
dairy ['dєәri] | n. | 1) 乳品店,乳品公司 2) 牛奶场; 奶品场 |
or [ɔ:] | conj. | 1) 或,或者,还是 2) 否则,要不然 |
egg [eg] | n. | 蛋,卵 |
句子成分分析:
I've seen very expensive protein supplements (that claim tobe high quality) || but they might not really be beneficial
[for the average healthy adult]," she says.
句子语法结构详解:
(seen 为 see 的过去分词。I've = I have)
* seen 为谓语,采用现在完成时。
* that 为关系代词,引导定语从句。
* claim 为谓语,采用一般现在时。
* to be 为不定式,作宾语。
* 第1个 be 为系动词。
* but 为并列连词,连接并列句,表转折。
* 第2个 be 为系动词作谓语。
* beneficial 为形容词作表语。
* says 为谓语,采用一般现在时。动词采用第三人称单数形式。
* may 为情态动词。I, they, she 为人称代词主格。have 为助动词。the 为定冠词。
句子相关词汇解释:
Vocabulary:
see [si:] | vt. | 1) 看见,见到,看出 2) 观看(比赛、电视节目、演出等) |
very ['veri] | ad. | 1) 很, 非常 2) (用于形容词最高级或单词own之前, 表强调)真正, 十足 |
expensive [ik'spensiv] | a. | 昂贵的,花钱多的,价格高的 |
protein ['prәuti:in] | n. | 蛋白质 |
supplement ['sʌplimәnt] | n. | 1) 增添物,补给物 2) 报纸增刊 |
claim [kleim] | vt. | 1) 宣称,声称(某事) 2) 要求(拥有),索取,认领 3) (灾难、事故等)夺走,夺去(生命) |
high [hai] | a. | 1) 高的 2) 有某高度的 |
quality ['kwɔlәti] | n. | 1) 质量,品质 2) 上乘,优质,高标准 |
but [bʌt] | conj. | 1) 但是 2) 而, 却 |
not [nɔt] | ad. | 1) 不,没有 2) 不没有 |
really ['riәli] | ad. | 1) 实际上, 事实上,真实地,真正地 2) (强调观点等)确实,的确 |
beneficial [,beni'fiʃәl] | a. | 有利的,有帮助的,有用的 |
average ['ævәridʒ] | a. | 1) 平均的 2) 典型的,正常的 3) 普通的,平常的,一般的 |
healthy ['helθi] | a. | 1) 健康的,健壮的 2) 有益于健康的 |
adult ['ædʌlt] | n. | 1) (法律上指能为自己的行为负责的)成年人 2) 成年动物 |
say [sei] | vi. | 1) 说,讲,告诉 2) 表达,表述 |
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