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	<title>rol lipide organism &#8211; Promovare Digitala</title>
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		<title>Rolul lipidelor in organism</title>
		<link>https://digitalpromo.ro/rolul-lipidelor-in-organism/</link>
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		<pubDate>Fri, 30 Apr 2021 11:07:34 +0000</pubDate>
				<category><![CDATA[Sanatate]]></category>
		<category><![CDATA[deficit lipide organism]]></category>
		<category><![CDATA[grasimi alimentare]]></category>
		<category><![CDATA[grasimi dietetice]]></category>
		<category><![CDATA[lipide]]></category>
		<category><![CDATA[rol lipide organism]]></category>
		<guid isPermaLink="false">https://digitalpromo.ro/?p=2142</guid>

					<description><![CDATA[Lipidele sau grasimile dietetice sunt esentiale pentru o sanatate buna. Acestea ofera corpului uman acizi grasi „esentiali” care nu pot fi sintetizati de organism. Lipidele sunt o sursa importanta de energie pentru corpul uman. Se spune ca unii acizi grasi sunt esentiali, deoarece organismul nu ii poate sintetiza. Acestia sunt acizii grasi omega-6 (acid linoleic) [&#8230;]]]></description>
										<content:encoded><![CDATA[<p align="JUSTIFY"><span style="color: #000000;"><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-GB"><b>Lipidele</b></span></span></span><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-GB"> sau grasimile dietetice sunt esentiale pentru o sanatate buna. Acestea ofera corpului uman acizi grasi „esentiali” care nu pot fi sintetizati de organism. Lipidele sunt o sursa importanta de energie pentru corpul uman.</span></span></span></span></p>
<p lang="en-GB" align="JUSTIFY"><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Se spune ca unii acizi grasi sunt esentiali, deoarece organismul nu ii poate sintetiza. Acestia sunt acizii grasi omega-6 (acid linoleic) si omega-3 (acid alfa-linolenic). Ei joaca un rol important in membranele celulelor corpului uman. </span></span></p>
<p lang="en-GB" align="JUSTIFY"><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Raportul dintre acizii grasi omega-3 si omega-6 este foarte important, deoarece un dezechilibru intre aceste 2 tipuri de acizi grasi poate fi daunator. De exemplu, omega-6 consumat in exces impiedica omega-3 sa isi exercite efectul benefic la nivel cardiovascular.</span></span></p>
<p lang="en-GB" align="JUSTIFY"><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Acizii grasi mononesaturati nu sunt acizi grasi esentiali, ci sunt o componenta cheie a celulelor din sistemul nervos. Se gasesc in principal in ulei de masline, avocado, precum si in nuci si seminte.</span></span></p>
<p lang="en-GB" align="JUSTIFY"><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Grasimile saturate, precum si grasimile trans nu sunt acizi grasi esentiali si sunt chiar recunoscuti in diverse studii ca avand efecte nocive asupra nivelului de colesterol LDL si asupra riscului cardiovascular. Prin urmare, acestea ar trebui sa fie limitate cat mai mult posibil.</span></span></p>
<p lang="en-GB" align="JUSTIFY"><strong><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Rolul lipidelor in organism</span></span></strong></p>
<ul>
<li lang="en-GB"><strong><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Energetic</span></span></strong></li>
</ul>
<p lang="en-GB" align="JUSTIFY"><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Spre deosebire de proteine ​​si carbohidrati care furnizeaza 4 kcal pe gram, grasimile furnizeaza 9 kcal pe gram. Prin urmare, ele participa la acoperirea nevoilor de energie.</span></span></p>
<ul>
<li lang="en-GB"><strong><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Rolul structural</span></span></strong></li>
</ul>
<p lang="en-GB" align="JUSTIFY"><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Lipidele si in special acizii grasi nesaturati sunt principalii constituenti ai membranelor celulare si ai celulelor sistemului nervos. De asemenea, asigura plasticitatea si elasticitatea pielii, deoarece sunt constituenti importanti ai celulelor dermei.</span></span></p>
<ul>
<li lang="en-GB"><strong><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Transportul vitaminelor liposolubile</span></span></strong></li>
</ul>
<p lang="en-GB" align="JUSTIFY"><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">In organism, unele vitamine pot fi transportate numai cu ajutorul lipidelor. Sunt numite vitamine liposolubile: vitaminele A, D, E si K.</span></span></p>
<ul>
<li lang="en-GB"><strong><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Sinteza hormonilor</span></span></strong></li>
</ul>
<p lang="en-GB" align="JUSTIFY"><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Acizii grasi permit sinteza anumitor hormoni steroizi, derivati direct din colesterol: estrogen, testosteron si cortizol. Prostaglandinele sunt, de asemenea, derivate din molecule de lipide.</span></span></p>
<ul>
<li lang="en-GB"><strong><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Deficitul de lipide</span></span></strong></li>
</ul>
<p lang="en-GB" align="JUSTIFY"><span style="font-family: Arial, sans-serif; color: #000000;"><span style="font-size: medium;">Aportul insuficient de grasimi alimentare poate duce la tulburari de crestere si la un risc crescut de boli cronice. Daca aportul insuficient de grasimi este insotit si de un aport insuficient de carbohidrati si proteine ​​si, prin urmare, de energie, poate duce la malnutritie. Aportul adecvat de lipide este deosebit de important in copilarie si in timpul sarcinii.</span></span></p>
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