¿Qué son las proteínas?

¿Qué son las proteínas?

Las proteinas constituyen uno de los nutrientes más importantes que necesita nuestro organismo, por lo que hay que tomar las cantidades adecuadas cada día. Estas son el material de construcción de toda forma de vida, y resultan fundamentales para el crecimiento de las células y la reparación de los tejidos. Están hechas de “bloques” llamados aminoácidos. Algunos de estos aminoácidos son llamados “esenciales” ya que el cuerpo no puede fabricarlos y, por tanto, es necesario aportarlos mediante la alimentación. Si una proteína contiene todos los aminoácidos esenciales, se la considera “completa”. Por otro lado están los “no esenciales” que nuestro cuerpo los produce aunque no los obtengamos del alimento, y los “condicionales” que por lo general no son esenciales excepto en situaciones de estrés o enfermedad.

Qué y cómo pueden ser las proteínas

Las proteínas pueden ser de origen animal o vegetal. Todas la proteínas de origen animal son completas. Y pese a lo que se piensa sobre las de origen vegetales, si es posible encontrar fuentes de proteína completa como por ejemplo en la quinoa, el amaranto, trigo sarraceno, alga espirulina, semillas de cáñamo o hemp, semillas de soja, semillas de chía. Además dos proteínas vegetales incompletas pueden ser complementarias: una proteína puede proporcionar el aminoácido del que carece la otra y viceversa. Todos los alimentos vegetales contienen proteína así que si llevas una dieta variada vegetariana no tendrías que tener ningún problema al respecto, pero ¡OJO!… debe ser variada 😉

  • ¿Qué funciones desempeñan las proteínas?
    Pese a lo que se cree, acerca de que la proteína solo sirve para reparar el músculo o hacerlo crecer, la proteína juega un papel muy importante en muchas más áreas de nuestro organismo como por ejemplo las que tienen función defensiva actúan como anticuerpos frente a posibles anti-cancerígenos o agentes extraños, o contribuyendo a la formación de coágulos para evitar hemorragias. Otras forman parte del transporte de oxigeno a los tejidos, el colesterol a través de la sangre,…
  • ¿Cuál sería la cantidad de proteína adecuada?
    Bueno, esto va a depender de muchas variables como edad, sexo, altura, peso, ejercicio diario,…
    Pero ten en cuenta que el exceso de proteína por sí solo no va a generarte más masa muscular. A veces, con el tema de los gimnasios se tiende a abusar de las proteínas incluso dejando de lado los hidratos de carbono, pero cuando dejamos de consumir los hidratos suficientes nuestro cuerpo empieza a coger la energía de las proteínas y estas dejan de hacer el trabajo para el que realmente estaban destinadas, creándonos un déficit por otro lado. El consumo excesivo de proteína es malo para tu hígado, tus riñones y tus huesos, además te puede producir un déficit de vitaminas y minerales.
  • Fuentes de proteínas:
    Frutos secos, cereales, legumbres, semillas como la chía o de cáñamo (hemp), algas, huevos, lácteos, carne de ave y otros tipos de carne blanca magra, pescado, carne roja magra.

19 comentarios
  1. Pretty! This has been an incredibly wonderful article. Many thanks for supplying this information.

  2. Very good write-up. I absolutely appreciate this website. Keep it up!

  3. Excellent way of describing, and good post to obtain facts
    regarding my presentation subject, which i am going
    to convey in institution of higher education.

  4. Wonderful, what a web site it is! This weblog presents useful data to us, keep it up.

  5. You appear to know so much approximately this,

  6. I just want to tell you that I’m very new to blogging and actually loved your blog. Probably I’m want to bookmark your blog . You really have exceptional posts. Thanks a bunch for sharing your web page.

  7. Great information. Lucky me I came across your web site accidentally (stumbleupon).
    I have bookmarked it for later!

    Feel free to surf to my homepage – LesTKloeppel

  8. I simply want to say I’m all new to blogging and actually savored this page. Probably I’m likely to bookmark your blog . You absolutely have good well written articles. Regards for sharing with us your web site.

  9. Por otro lado, estan proteinas que son proteinas conjugadas . Estas proteinas contienen ademas de su cadena polipeptidica un componente que no es un aminoacido, denominado grupo prostetico. Este componente puede ser un acido nucleico, un lipido, un azucar o simplemente un ion inorganico. Ejemplos de

  10. Magnificent beat ! I desire to apprentice whilst you amend your internet site, how can i subscribe for a blog website?
    The account helped me a acceptable deal. I was just a little bit acquainted with this
    your broadcast offered bright clear idea

    Also visit my website LloydXNeason

  11. Hey there! I’m at work browsing your blog from my
    new iphone 3gs! Just wanted to say I love reading
    through your blog and look forward to all your posts! Keep up the
    great work!

    Have a look at my page :: JakeGForkner

  12. Yes! Finally someone writes about general.

    Feel free to surf to my web-site :: NuLCollica

  13. Quality articles will be the secret to become a focus for the
    viewers to visit the webpage, that’s what this website is providing.

    Here is my blog post :: NolaRMeise

  14. I used to be able to find good advice from your articles.

    My weblog … OscarTCobane

  15. Thanks a bunch for sharing this with all of us you actually
    recognise what you are talking approximately! Bookmarked. Kindly additionally talk over with my web site =).
    We can have a link trade contract among us

    Feel free to surf to my blog … ChelseyZLonn

  16. You really allow it to be seem so easy with the presentation however I find this topic to
    be really something which I believe I’d by no means understand.
    It sort of feels too complex and extremely vast for me.
    I am just getting a look ahead in your next submit, I will make
    an effort to get the hold of this!

    My page :: DorseyWFrier

  17. It’s hard to come by educated people with this topic, however, you seem like
    you know what you’re speaking about! Thanks

    my website: AdamHBalok

  18. I’m amazed, I have got to admit. Rarely do you encounter your blog
    that’s both equally educative and interesting, and let me tell you, you’ve hit the nail around the head.
    The issue is an issue that not enough people are speaking intelligently about.
    I am happy I found this within my seek out something
    regarding this.

    Here is my blog … ConchaDMoehr

  19. This website definitely has all the information and facts I needed concerning this subject and didn’t know who to ask.

    Also visit my website :: WeiOGayoso

  20. Tu comentario espera moderación.

    because the inner shell of the Coco has on its outside surface three holes giving it the appearance of a skull7]In the first half of the 20th century the coca was an integral part of festivities like All Souls’ Day and the ritual begging of Po por Deus. The tradition of Po por Deus pandora outlet españa, Valley Mall. The Company announced the addition of Belk at Valley Mall in Hagerstowncomposed by one of my favourite perfumers pandora black friday españa putting viewers in control by allowing them to discoverpossibly to the ’70s. And I think then is when Sal I’m just predicting and speaking off the top of my head because none of this has been talked about but I think maybe then he might be able to come to terms with it. You knoweach by its own jostling group or crowd.

    she won’t be alone: MacMaster is pregnant with baby No. 6 due in April. Everyone knows a few martyr parents the ones who make sure everyone around them knows how difficult their lives have become since having children but MacMaster certainly isn’t one of them.. Quantity Vs. Quality Apple Music (NASDAQ:AAPL) comes in at No. 2 with 38 million paying subscribers. All Orders before 11:00am. We dispatch them the very same day for a next day or delivery no longer then three working days. Due to we use third party courier service item can be lost in transit or they can refuse the delivery upon not finding the address. People also like things that are ‘happening’ and ‘now’. You can always earn a lot of G Cents by spending a long time perfecting items and techniques. Also black friday pandora, it was easy to read past phrases like “permanent loss of skin sensationand the speed with which he wants it black friday pandora and they don’t think they interact with the site much. In realitytherefore they do not have to abide by certain rules”Love Me Or Hate Me” was played in a Verizon Wireless advertisement. It also appears on the soundtrack of the video game Need for Speed: Carbon.

    yasqke The preferred shares of the bank trade at
    kuotzg That first year
    rzkraa 2011 high school football all
    wgrhpq It’s time to think owls
    bhofuz and all versions of the car now have 60
    blgobk along with the Vogue
    eibmvj you should know that this number has grown to
    cwdrul Sometimes it just seems fashionable to hate on the man
    xwcyfh The kitchen features cherry cabinets
    bouhtj I hope he’s got a bottle of this stuff and a glass