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Alimentació saludable

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3r ESO Ciències Naturals

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  • DOWNLOAD THAT BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download Full EPUB Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download Full doc Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download PDF EBOOK here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download EPUB Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download doc Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book that can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer that is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story That Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money That the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths that Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
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  • DOWNLOAD THAT BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { https://urlzs.com/UABbn } ......................................................................................................................... Download Full EPUB Ebook here { https://urlzs.com/UABbn } ......................................................................................................................... Download Full doc Ebook here { https://urlzs.com/UABbn } ......................................................................................................................... Download PDF EBOOK here { https://urlzs.com/UABbn } ......................................................................................................................... Download EPUB Ebook here { https://urlzs.com/UABbn } ......................................................................................................................... Download doc Ebook here { https://urlzs.com/UABbn } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book that can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer that is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story That Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money That the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths that Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
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  • DOWNLOAD THAT BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download Full EPUB Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download Full doc Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download PDF EBOOK here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download EPUB Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download doc Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book that can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer that is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story That Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money That the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths that Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
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Alimentació saludable

  1. 1. ALIMENTACIÓ SALUDABLE ALIMENTACIÓ I NUTRICIÓ. 3r ESO
  2. 2. LA CLASSIFICACIÓ DELS ALIMENTS Els aliments es classifiquen segons el tipus de nutrient majoritari que porten, la qual cosa també determina el tipus de funció que fa dins el cos. No hi ha cap aliment que per si sol aporti tots els nutrients (excepte la llet materna i només durant una etapa) <ul><li>La roda dels aliments agrupa els aliments en 6 grups, segons la funció que tenen en l'organisme: </li></ul><ul><ul><li>- energètica </li></ul></ul><ul><ul><li>- plàstica </li></ul></ul><ul><ul><li>- reguladora </li></ul></ul>
  3. 3. QUÈ S'ENTÉN PER DIETA? La dieta pot ser definida com la forma en que una persona s'alimenta de forma habitual: classe, quantitat i distribució dels aliments que menja al llarg del dia, setmana, etc. No sempre les dietes són iguals, estan condicionades per la regió on es viu, l’estació de l’any, la persona i les seves condicions i activitat. S'entén per dieta el conjunt de tipus d'aliments que normalment ingerim així com la seva quantitat i proporció.
  4. 4. Una alimentació és saludable si és :  Completa , perquè conté tots els grups d'aliments que, en combinació, aporten tots els nutrients necessaris E quilibrada , perquè incorpora quantitats apropiades d'aliments, però sense excessos. Suficient , perquè cobreix les necessitats de l'organisme per permetre el creixement i el desenvolupament en els nens i mantenir el pes corporal en els límits aconsellables en adults.  Variada , perquè proporciona els aportaments necessaris de vitamines i minerals, ja que inclou diferents grups d'aliments.  Adequada a les característiques de l'individu i a les seves circumstàncies. Pràctica i atractiva , perquè sigui fàcil de preparar, desitjable i amb una bona presentació, amb varietat de textures, colors i temperatures. DIETA SALUDABLE
  5. 5. Tot això s'ha d'acompanyar d'un estil de vida saludable, que inclogui la pràctica regular d'activitat física, un bon descans, l'absència de tòxics i uns hàbits higiènics correctes. DIETA SALUDABLE
  6. 6. DIETA SALUDABLE Una dieta equilibrada inclou tots els grups d’aliments amb la proporció adequada. La piràmide alimentària representa aquestes proporcions
  7. 7. DIETA EQUILIBRADA: NECESSITATS ENERGÈTIQUES A l'interior de les cèl·lules els nutrients poden combinar-se amb l'oxigen i desprendre's diòxid de carboni, aigua i energia, en un procés anomenat respiració cel·lular . Aquesta energia se sol expressar en calories o en quilocalories : Una CALORIA (cal) és la quantitat de calor necessària per a elevar un grau centígrad la temperatura d'un gram d'aigua. Una quilocaloria (kcal) són 1000 calories. També es pot trobar expressada en quilojoules (Kj). 1 Kcal=4,2 Kj. Les calories o energia que necessita l'organisme són aportades pels aliments que s'ingereixen diàriament. El valor energètic o calòric d'un aliment és la quantitat d'energia que produeix quan és totalment oxidat. GLÚCIDS = 4 kcal/g LÍPIDS = 9 kcal/g PROTEÏNES = 4 kcal/g
  8. 8. La dieta ha de proporcionar les calories necessàries per mantenir el metabolisme basal (aprox 60% de l'energia que ens cal) i per portar a terme l'activitat diària: vindrien a ser unes 2000 o 2500 calories, però aquest nombre pot variar molt segons l'edat, el sexe i l'activitat física realitzada. Aproximadament es recomana fer el càlcul de les calories que són necessàries ingerint unes 40 calories per quilo de pes al dia . DIETA EQUILIBRADA: NECESSITATS ENERGÈTIQUES Per mantenir el pes corporal, és important adequar el consum a les necessitats energètiques, ja que tot el que es consumeixi en excés s'emmagatzema en forma de greix.
  9. 9. <ul><li>Les proteïnes han de suposar com a molt un 15% de l'aportació calòrica. </li></ul><ul><li>Els glúcids entre un 50% i un 60% de l'aportació calòrica </li></ul><ul><li>Els lípids no han de sobrepassar el 30% de les calories totals ingerides. </li></ul>DIETA EQUILIBRADA: NECESSITATS NUTRICIONALS l • La dieta ha de subministrar la quantitat suficient de proteïnes, vitamines i minerals. Tan l’excés com el defecte de nutrients són perjudicials per a l’organisme. • Pel que fa al repartiment dels aliments que ens proporcionen energia, s’ha de fer d’acord amb el quadre que figura a continuació. Per descomptat, no és fàcil seguir-lo d’una manera estricta, però ens pot servir de guia.
  10. 10. DIETA EQUILIBRADA: NECESSITATS NUTRICIONALS <ul><li>És convenient distribuir la ingestió diària d'aliments en quatre o cinc àpats (menjars) i mai en menys de tres. </li></ul>És molt important fer un bon desdejuni: Els grups que ha de contenir l’esmorzar són lactis (llet, formatges, iogurt) que aporten proteïnes, calci, vitamines A, B i D; cereals, galetes i pa, que proporcionen hidrats de carboni i minerals; fruites i sucs, que contenen vitamines hidrosolubles, aigua, minerals i fibra. 25-30 % 10-15 % 35% 25% Sopar Berenar Dinar Desdejuni / Esmorzar
  11. 11. <ul><li>Beure molta aigua i sucs naturals de fruites (acabats d’exprimir). </li></ul><ul><li>El calci i el ferro són exemples de minerals indispensables en la dieta de les persones. Es recomana una ingestió de 1200 mg/dia de calci. La dieta ha de proporcionar entre 2 i 4mg/dia de ferro. </li></ul><ul><li>Cal ingerir cada dia més de 22 g de fibra, que s’obté dels vegetals i de la fruita. És recomana ingerir unes 5 peces de fruita al dia. </li></ul>DIETA EQUILIBRADA: CONSELLS <ul><li>Consumir fruites i amanides ja que, com normalment s'ingereixen crues, són molt riques en vitamines. Aquestes substàncies també estan presents en les verdures, en les carns i els peixos, però com són molt sensibles a la calor, es destrueixen al bullir aquests aliments. </li></ul>
  12. 12. <ul><li>Tan sols el 10 % de les quilocalories que obtenim al dia ha de provenir de glúcids simples (sucres). Aquestes substàncies són molt abundants als dolços; per tant, se n’han de consumir amb moderació. </li></ul><ul><li>El màxim diari de colesterol considerat acceptable és de 300 mg. Un excés de colesterol comporta que s’acumuli a les artèries, fet que en pot provocar l’obstrucció, amb conseqüències molt greus. </li></ul><ul><li>No s’han de superar els 3 g de sal al dia. Un excés de sal al menjar produeix problemes a l’aparell excretor i fa pujar la tensió arterial. </li></ul><ul><li>• Cal combinar les proteïnes animals i les vegetals. Un excés d’aliments proteics d’origen animal fa que les proteïnes sobrants s’utilitzin com a font d’energia, i que s’alliberi nitrogen, fet que provoca l’aparició de malalties com ara la gota. </li></ul>DIETA EQUILIBRADA: CONSELLS
  13. 13. RECORDA!
  14. 14. DIETA MEDITERRÀNIA: EXEMPLE DE DIETA SALUDABLE Sabries dir què caracteritza la dieta mediterrània?
  15. 15. FI http://www.aula2005.com/html/cn3eso/05nutricio/05nutricio.htm http://recetasdecocinablog.com http://tarracovinoleum.cat/?p=1811 http://www.nutricion.pro/18-03-2010/dieta-mediterranea/ http://blocs.xtec.cat/naturalsom/3r-eso/ http://www.infermeravirtual.com/ca-es/home.html http://medicinas-alternativas.net/tag/fruta http://es.123rf.com/

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