什么是5/2节食法？
<p> 想减肥的人们听说过5比2节食法（5/2 <span word="diet">diet</span>）吗？这种节食法指一周7天中有2天严格控制摄入的热量，其余5天正常进食。据说长期坚持就能达到减肥的效果，不过也要因人而异吧。</p><p> </p><p> <span word="The">The</span> 5:2 <span word="diet">diet</span>, <span word="also">also</span> <span word="written">written</span> <span word="as">as</span> 5/2 <span word="diet">diet</span>, <span word="is">is</span> <span word="a">a</span> <span word="fad">fad</span> <span word="diet">diet</span> <span word="which">which</span> <span word="involves">involves</span> <span word="severe">severe</span> <span word="calorie">calorie</span> <span word="restriction">restriction</span> <span word="for">for</span> <span word="two">two</span> <span word="non">non</span>-<span word="consecutive">consecutive</span> <span word="days">days</span> <span word="a">a</span> <span word="week">week</span> <span word="and">and</span> <span word="normal">normal</span> <span word="eating">eating</span> <span word="the">the</span> <span word="other">other</span> <span word="five">five</span> <span word="days">days</span>, <span word="which">which</span> <span word="originated">originated</span> <span word="and">and</span> <span word="became">became</span> <span word="popular">popular</span> <span word="in">in</span> <span word="the">the</span> <span word="UK">UK</span>, <span word="and">and</span> <span word="spread">spread</span> <span word="in">in</span> <span word="Europe">Europe</span> <span word="and">and</span> <span word="to">to</span> <span word="the">the</span> <span word="US">US</span>. <span word="It">It</span> <span word="is">is</span> <span word="a">a</span> <span word="form">form</span> <span word="of">of</span> <span word="intermittent">intermittent</span> <span word="fasting">fasting</span>. <span word="The">The</span> <span word="diet">diet</span> <span word="is">is</span> <span word="claimed">claimed</span> <span word="to">to</span> <span word="promote">promote</span> <span word="weight">weight</span> <span word="loss">loss</span> <span word="and">and</span> <span word="to">to</span> <span word="have">have</span> <span word="several">several</span> <span word="beneficial">beneficial</span> <span word="effects">effects</span> <span word="on">on</span> <span word="health">health</span>. <span word="According">According</span> <span word="to">to</span> <span word="the">the</span> <span word="UK">UK</span> <span word="National">National</span> <span word="Health">Health</span> <span word="Service">Service</span> <span word="there">there</span> <span word="is">is</span> <span word="limited">limited</span> <span word="evidence">evidence</span> <span word="on">on</span> <span word="the">the</span> <span word="safety">safety</span> <span word="and">and</span> <span word="effectiveness">effectiveness</span> <span word="of">of</span> <span word="the">the</span> <span word="diet">diet</span>; <span word="they">they</span> <span word="advise">advise</span> <span word="people">people</span> <span word="considering">considering</span> <span word="it">it</span> <span word="to">to</span> <span word="consult">consult</span> <span word="their">their</span> <span word="doctor">doctor</span>.</p><p> 5比2节食法是一种时兴的节食方法，指一周7天中有2天严格控制摄入的卡路里，其余5天正常进食，控制热量的2天不是连续的。这种节食方法源自英国并在那里广受欢迎，之后传到了欧洲和美国。这是间断性禁食的一种方式，据说能够帮助减肥，还对健康有不少益处。不过，英国国民健康服务机构表示，这种节食方法在安全和有效性方面的证据很有限，建议人们尝试之前先咨询医生。</p><p> <span word="Men">Men</span> <span word="may">may</span> <span word="eat">eat</span> 600 <span word="calories">calories</span> <span word="on">on</span> <span word="fasting">fasting</span> <span word="days">days</span>, <span word="and">and</span> <span word="women">women</span> 500. <span word="A">A</span> <span word="typical">typical</span> <span word="fasting">fasting</span> <span word="day">day</span> <span word="may">may</span> <span word="include">include</span> <span word="a">a</span> <span word="breakfast">breakfast</span> <span word="of">of</span> 300 <span word="calories">calories</span>, <span word="such">such</span> <span word="as">as</span> <span word="two">two</span> <span word="scrambled">scrambled</span> <span word="eggs">eggs</span> <span word="with">with</span> <span word="ham">ham</span>, <span word="water">water</span>, <span word="green">green</span> <span word="tea">tea</span>, <span word="or">or</span> <span word="black">black</span> <span word="coffee">coffee</span>, <span word="and">and</span> <span word="a">a</span> <span word="lunch">lunch</span> <span word="or">or</span> <span word="dinner">dinner</span> <span word="of">of</span> <span word="grilled">grilled</span> <span word="fish">fish</span> <span word="or">or</span> <span word="meat">meat</span> <span word="with">with</span> <span word="vegetables">vegetables</span>, <span word="amounting">amounting</span> <span word="to">to</span> 300 <span word="calories">calories</span>. <span word="The">The</span> <span word="daily">daily</span> 500 <span word="or">or</span> 600 <span word="calorie">calorie</span> <span word="limit">limit</span> <span word="requires">requires</span> <span word="small">small</span> <span word="portions">portions</span>.</p>
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