{"id":22020,"date":"2021-03-25T16:11:42","date_gmt":"2021-03-25T14:11:42","guid":{"rendered":"https:\/\/vegis.ro\/blog\/?p=22020"},"modified":"2025-05-19T16:09:28","modified_gmt":"2025-05-19T13:09:28","slug":"afla-cat-de-importanta-este-vitamina-d-pentru-organism","status":"publish","type":"post","link":"https:\/\/vegis.ro\/blog\/afla-cat-de-importanta-este-vitamina-d-pentru-organism\/","title":{"rendered":"Afl\u0103 c\u00e2t de important\u0103 este vitamina D pentru organism!"},"content":{"rendered":"\n

Vitamina D, supranumit\u0103 \u201evitamina soarelui\u201d datorit\u0103 capacit\u0103\u021bii sale de a fi absorbit\u0103 de corp prin expunerea la soare, joac\u0103 un rol important \u00een men\u021binerea s\u0103n\u0103t\u0103\u021bii. Afl\u0103 c\u00e2te tipuri de vitamina D exist\u0103, care sunt rolurile sale principale \u00een organism, c\u00e2nd exist\u0103 un risc de a suferi de un deficit \u0219i care sunt simptomele unui nivel sc\u0103zut de vitamina D \u00een corp.<\/strong><\/p>\n\n\n\n

CE ESTE VITAMINA D<\/strong><\/p>\n\n\n\n

Vitamina D<\/a> (calciferol) este o vitamin\u0103 solubil\u0103 \u00een gr\u0103simi care este prezent\u0103 \u00een mod natural \u00een c\u00e2teva alimente, ad\u0103ugat\u0103 altora \u0219i disponibil\u0103 ca supliment alimentar. De asemenea, este produs\u0103 endogen atunci c\u00e2nd razele ultraviolete din lumina soarelui declan\u0219eaz\u0103 \u00een piele sinteza ei.<\/p>\n\n\n\n

\"produse<\/a><\/figure>\n\n\n\n

Principalele sale forme, esen\u021biale pentru s\u0103n\u0103tatea organismului, sunt vitamina D2<\/a> (ergocalciferol) \u0219i vitamina D3 (colecalciferol)<\/strong>. Prima form\u0103 este derivat\u0103 din plante \u0219i fungi expuse la radia\u021bii ultraviolete \u0219i este adesea ad\u0103ugat\u0103 ca element de fortifiere \u00een lapte \u0219i cereale. Pe de alt\u0103 parte, vitamina D3<\/a> se g\u0103se\u0219te \u00een anumite alimente precum pe\u0219tele gras sau albu\u0219ul de ou, dar poate fi administrat\u0103 \u0219i sub form\u0103 de supliment alimentar la recomandarea unui medic de specialitate. Acest tip de vitamin\u0103 este sintetizat\u0103 la nivel cutanat din provitamina D3 (7-dehidrocolesterol) sub ac\u021biunea razelor ultraviolete. Dintre cele dou\u0103, D3 s-a dovedit a fi de dou\u0103 ori mai eficient\u0103 \u00een cre\u0219terea nivelului sangvin de vitamina D fa\u021b\u0103 de D2<\/strong>, potrivit unor studii realizate de c\u0103tre dou\u0103 echipe de cercet\u0103tori din Londra \u0219i Canada.<\/p>\n\n\n\n

BENEFICII PENTRU S\u0102N\u0102TATE<\/strong><\/p>\n\n\n\n

Vitamina D<\/a> \u00eendepline\u0219te mai multe func\u021bii importante \u00een organism. \u00cen primul r\u00e2nd, aceasta ajut\u0103 la reglarea absorb\u021biei de calciu \u0219i fosfor \u0219i sus\u021bine sistemul imunitar.<\/strong><\/p>\n\n\n\n

\"beneficii<\/a><\/figure><\/div>\n\n\n\n

\u00cen plus, ob\u021binerea unei cantit\u0103\u021bi suficiente \u00een organism este important\u0103 pentru cre\u0219terea \u0219i dezvoltarea normal\u0103 a oaselor \u0219i din\u021bilor. Atunci c\u00e2nd organismul dispune de o cantitate suficient\u0103, exist\u0103 un risc sc\u0103zut de apari\u021bie a anomaliilor osoase, precum osteomalacia (afec\u021biune ce const\u0103 \u00een demineralizarea oaselor) sau osteoporoza (\u00een cazul acestei afec\u021biuni oasele devin foarte fragile).<\/p>\n\n\n\n

Pe l\u00e2ng\u0103 aceste beneficii, vitamina soarelui contribuie \u0219i la prevenirea altor probleme de s\u0103n\u0103tate, potrivit oamenilor de \u0219tiin\u021b\u0103.<\/p>\n\n\n\n

\u021aine la distan\u021b\u0103 r\u0103celile \u0219i gripa:<\/strong> Un studiu realizat \u00een 2018 de cercet\u0103torii polonezi arat\u0103 c\u0103 vitamina D<\/a> protejeaz\u0103 organismul \u00eempotriva virusului Influenza, reduc\u00e2nd astfel riscul de apari\u021bie a r\u0103celilor \u0219i gripei.<\/p>\n\n\n\n

Reduce riscul de apari\u021bie a depresiei: <\/strong>\u00cen cadrul unui studiu<\/a> realizat de oamenii de \u0219tiin\u021b\u0103 din cadrul Departamentului Medical al Spitalului Universitar din Troms\u00f8, Norvegia, s-au urm\u0103rit efectele pe care le au suplimente pe baz\u0103 de vitamina D<\/a> \u00een cazul persoanelor depresive. Rezultatele arat\u0103 c\u0103 administrarea s\u0103pt\u0103m\u00e2nal\u0103 a unei doze de 20.000 sau 40.000 de UI, timp de 1 an, a dus la ameliorarea simptomelor asociate depresiei<\/strong>. La studiu au participat 441 de persoane, at\u00e2t femei, c\u00e2t \u0219i b\u0103rba\u021bi, cu v\u00e2rste cuprinse \u00eentre 21 \u0219i 70 de ani.<\/p>\n\n\n\n

\"reducere<\/a><\/figure><\/div>\n\n\n\n

Ajut\u0103 la prevenirea hipertensiunii arteriale:<\/strong> Potrivit unui studiu realizat \u00een 2019 de c\u0103tre cercet\u0103torii din cadrul Universit\u0103\u021bii Shandong din Jinan, China, vitamina D<\/a> joac\u0103 un rol important \u00een combaterea hipertensiunii arteriale. Autorii studiului sus\u021bin c\u0103 lipsa acesteia, chiar \u0219i pe o perioad\u0103 scurt\u0103 de timp, poate duce la cre\u0219terea tensiunii arteriale \u0219i la apari\u021bia problemelor cardiovasculare.<\/p>\n\n\n\n

Sus\u021bine s\u0103n\u0103tatea danturii:<\/strong> Oamenii de \u0219tiin\u021b\u0103 americani din cadrul Departamentului de Periodontologie al Centrului Universitar de \u0218tiin\u021b\u0103 \u0219i S\u0103n\u0103tate Tennessee din Memphis, Tennessee, SUA, sus\u021bin c\u0103 vitamina D ajut\u0103 la men\u021binerea s\u0103n\u0103t\u0103\u021bii din\u021bilor \u0219i a gingiilor<\/strong>. Aceste beneficii se datoreaz\u0103 efectului s\u0103u asupra metabolismului osos \u0219i capacit\u0103\u021bii sale de a func\u021biona ca agent antiinflamator \u0219i de a stimula produc\u021bia de peptide antimicrobiene.<\/p>\n\n\n\n

NECESARUL ZILNIC DE VITAMINA D<\/strong><\/p>\n\n\n\n

Doza zilnic\u0103 recomandat\u0103 de vitamina D pentru bebelu\u0219i<\/a> este de 400 de unit\u0103\u021bi (UI), \u00een timp ce copiii cu v\u00e2rste cuprinse \u00eentre 1 \u0219i 18 ani au nevoie de 600 UI. Adul\u021bii de p\u00e2n\u0103 la 70 de ani au nevoie de 600 UI de vitamina D zilnic, la fel ca \u0219i femeile \u00eens\u0103rcinate sau care al\u0103pteaz\u0103, iar pentru persoanele de peste 70 de ani, necesarul zilnic este de de 800 UI.<\/p>\n\n\n\n

\"necesarul<\/a><\/figure><\/div>\n\n\n\n

Speciali\u0219tii sus\u021bin c\u0103 expunerea la soare pentru 5-10 minute de 2-3 ori pe s\u0103pt\u0103m\u00e2n\u0103 este suficient\u0103 pentru a asigura cantitatea necesar\u0103 de vitamina D pentru o bun\u0103 func\u021bionare a organismului<\/strong>. Cu toate acestea, nivelul din organism scade destul de repede, \u00een special iarna, motiv pentru care este important s\u0103 discu\u021bi cu medicul specialist. Acesta \u00ee\u021bi va spune dac\u0103 ai sau nu nevoie de un supliment pe baz\u0103 de vitamina D<\/a> \u0219i care este doza recomandat\u0103, \u00een func\u021bie de v\u00e2rsta pe care o ai \u0219i problemele cu care te confrun\u021bi.<\/p>\n\n\n\n

CELE MAI BUNE SURSE DE VITAMINA D<\/strong><\/p>\n\n\n\n

Cu toate c\u0103 expunerea la soare reprezint\u0103 una dintre cele mai bune modalit\u0103\u021bi prin care \u00ee\u021bi po\u021bi asigura necesarul zilnic din aceast\u0103 vitamin\u0103, exist\u0103 \u00eens\u0103 \u0219i c\u00e2teva alimente care furnizeaz\u0103 organismului aceast\u0103 vitamin\u0103 esen\u021bial\u0103 pentru s\u0103n\u0103tatea sistemului osos.<\/p>\n\n\n\n

Printre cele mai importante se num\u0103r\u0103 uleiul de pe\u0219te (de somon, hering, sardine), carnea ro\u0219ie, ficatul, albu\u0219ul de ou, ciupercile, soia<\/a>, migdalele<\/a> \u0219i cerealele<\/a> \u00eembog\u0103\u021bite cu vitamine.<\/strong><\/p>\n\n\n\n

\"cele<\/a><\/figure><\/div>\n\n\n\n

C\u00c2ND POATE AP\u0102REA DEFICITUL \u00ceN ORGANISM<\/strong><\/p>\n\n\n\n

De obicei, persoanele care au pielea mai \u00eenchis\u0103 la culoare au un risc mai mare de a se confrunta cu un deficit al acestei vitamine, deoarece un nivel ridicat de melanin\u0103 reduce capacitatea organismului de a absorbi razele ultraviolete, care stimuleaz\u0103 produc\u021bia acestei vitamine \u00een corp. De asemenea, \u0219i cremele de protec\u021bie solar\u0103 \u00eempiedic\u0103 organismul s\u0103 sintetizeze vitamina soarelui.<\/p>\n\n\n\n

Un risc crescut de deficit de vitamina D \u00eel au \u0219i persoanele \u00een v\u00e2rst\u0103, din cauza faptului c\u0103 pielea \u00ee\u0219i pierde abilitatea de a sintetiza vitaminele odat\u0103 cu \u00eenaintarea \u00een v\u00e2rst\u0103.<\/p>\n\n\n\n

\"cand<\/a><\/figure><\/div>\n\n\n\n

Acest deficit poate ap\u0103rea \u0219i \u00een cazul copiilor care sunt al\u0103pta\u021bi exclusiv, mai ales dac\u0103 au mai mult\u0103 melanin\u0103 \u00een corp sau nu sunt expu\u0219i deloc la soare.<\/p>\n\n\n\n

Totodat\u0103, persoanele care sufer\u0103 de anumite afec\u021biuni ce limiteaz\u0103 absorb\u021bia gr\u0103similor au, de obicei, un nivel redus de vitamina D<\/a> \u00een corp. \u00centruc\u00e2t aceast\u0103 vitamina este solubil\u0103 \u00een gr\u0103simi, absorb\u021bia sa depinde de capacitatea intestinului de a absorbi gr\u0103simile din alimentele consumate. Malabsorb\u021bia gr\u0103similor este asociat\u0103 cu afec\u021biuni medicale care includ unele forme de boli hepatice, fibroz\u0103 chistic\u0103, boal\u0103 celiac\u0103, boala Crohn \u0219i colit\u0103 ulcerativ\u0103.<\/p>\n\n\n\n

SIMPTOMELE DEFICITULUI DE VITAMINA D<\/strong><\/p>\n\n\n\n

Iat\u0103 c\u00e2teva semne care \u00ee\u021bi pot spune c\u0103 ai un nivel redus de vitamina D \u00een corp.<\/p>\n\n\n\n

R\u0103ce\u0219ti des<\/strong><\/p>\n\n\n\n

Unul dintre cele mai importante roluri ale acestei vitamine este acela de a sus\u021bine sistemul imunitar \u00een fa\u021ba virusurilor \u0219i bacteriilor. Atunci c\u00e2nd r\u0103ce\u0219ti des sau suferi de infec\u021bii respiratorii precum bron\u0219it\u0103 sau pneumonie, deficitul de vitamina D<\/a> poate fi cauza, potrivit speciali\u0219tilor de la Centrul de Boli Infec\u021bioase din Cadrul Spitalului Universitar Jena din Jena, Germania.<\/p>\n\n\n\n

Ai o stare accentuat\u0103 de oboseal\u0103<\/strong><\/p>\n\n\n\n

\"simptomele<\/a><\/figure><\/div>\n\n\n\n

Acest simptom poate avea multe cauze, \u00eens\u0103 una dintre cele mai comune este deficitul de vitamina D. Cercet\u0103torii din cadrul departamentului de medicin\u0103 al Univerisit\u0103\u021bii Florida din Gainesville, Florida, SUA, au descoperit c\u0103 oboseala cronic\u0103 \u0219i durerile de cap se afl\u0103 \u00een str\u00e2ns\u0103 leg\u0103tur\u0103 cu nivelul sc\u0103zut al acestei vitamine din corp. Spre exemplu, \u00een cazul unei femei care suferea de oboseal\u0103 cronic\u0103, nivelul vitaminei \u00een s\u00e2nge era de doar 5,9 ng\/ml. Speciali\u0219tii i-au administrat acesteia un supliment pe baz\u0103 de vitamina D de 50.0000 de unit\u0103\u021bi, o dat\u0103 pe s\u0103pt\u0103m\u00e2n\u0103, urm\u00e2nd ca \u00een 2 s\u0103pt\u0103m\u00e2ni s\u0103 se observe deja \u00eembun\u0103t\u0103\u021biri. De \u00eendat\u0103 ce nivelul a crescut la 39ng\/ml, simptomele au disp\u0103rut.<\/p>\n\n\n\n

Ai dureri de oase sau de spate<\/strong><\/p>\n\n\n\n

Vitamina D<\/a> sus\u021bine s\u0103n\u0103tatea sistemului osos prin \u00eembun\u0103t\u0103\u021birea absorb\u021biei de calciu \u00een organism. \u00cen cadrul mai multor studii realizate de cercet\u0103tori din India \u0219i Germania se arat\u0103 c\u0103 exist\u0103 o str\u00e2ns\u0103 leg\u0103tur\u0103 \u00eentre deficitul acesteia \u0219i apari\u021bia durerilor de spate.<\/p>\n\n\n\n

\u00cen cazul deficitul de vitamina D, simptomele mai pot include: dureri musculare, st\u0103ri depresive, c\u0103derea p\u0103rului \u0219i vindecarea lent\u0103 a r\u0103nilor.<\/p>\n\n\n\n

Atunci c\u00e2nd deficitul de vitamina D persist\u0103 pe o perioad\u0103 lung\u0103 de timp, pot ap\u0103rea complica\u021bii precum: probleme cardivoasculare, afec\u021biuni autoimune, boli neurologice, infec\u021bii \u0219i complica\u021bii \u00een sarcin\u0103.<\/p>\n\n\n\n

CE SE \u00ceNT\u00c2MPL\u0102 C\u00c2ND IEI PREA MULT\u0102 VITAMINA D<\/strong><\/p>\n\n\n\n

Administrarea unei doze prea mari de vitamina D pe o perioad\u0103 lung\u0103 de timp poate provoca hipercalcemie, cee ce \u00eenseamn\u0103 c\u0103 se poate acumula o cantitate prea mare de calciu \u00een organism. Hipercalcemia poate duce la sl\u0103birea oaselor \u0219i la afectarea inimii \u0219i a rinichilor. Cele mai comune simptome ale unui exces includ durerile de cap \u0219i senza\u021bia de grea\u021b\u0103. \u00cen plus, prea mult\u0103 vitamina D \u00een corp poate duce \u0219i la pierderea apetitului, apari\u021bia unui gust metalic, uscarea gurii, vom\u0103, constipa\u021bie sau diaree.<\/p>\n\n\n\n

Acum c\u0103 \u0219tii c\u00e2t de important\u0103 este aceast\u0103 vitamin\u0103 pentru organism, discut\u0103 cu medicul t\u0103u pentru a afla dac\u0103 ai sau nu un deficit \u00een organism. \u00cen urma unui test de s\u00e2nge, vei putea s\u0103 corectezi o eventual\u0103 caren\u021b\u0103 \u0219i s\u0103 previi problemele de s\u0103n\u0103tate asociate unui nivel sc\u0103zut al vitaminei \u00een organism. \u00cen cazul \u00een care medicul \u00ee\u021bi recomand\u0103 administrarea de vitamina D, po\u021bi alege de pe vegis<\/a>.ro<\/a> un supliment din surse naturale, sub form\u0103 de capsule. Mai multe oferte g\u0103se\u0219ti aici<\/a>.<\/p>\n\n\n\n

\"suplimente<\/a><\/figure><\/div>\n\n\n\n

Referin\u021be:<\/strong><\/p>\n\n\n\n

  • https:\/\/www.healthline.com\/nutrition\/vitamin-d-101#what-it-is<\/li>
  • https:\/\/pubmed.ncbi.nlm.nih.gov\/9771862\/<\/li>
  • https:\/\/pubmed.ncbi.nlm.nih.gov\/22552031\/<\/li>
  • https:\/\/www.healthline.com\/health\/food-nutrition\/benefits-vitamin-d#boosts-weight-loss<\/li>
  • https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC6121423\/<\/li>
  • https:\/\/onlinelibrary.wiley.com\/doi\/full\/10.1111\/j.1365-2796.2008.02008.x<\/li>
  • https:\/\/pubmed.ncbi.nlm.nih.gov\/31389312\/<\/li>
  • https:\/\/pubmed.ncbi.nlm.nih.gov\/21748977\/<\/li>
  • https:\/\/www.medicalnewstoday.com\/articles\/161618#deficiency<\/li>
  • https:\/\/ods.od.nih.gov\/factsheets\/VitaminD-HealthProfessional\/#en1<\/li>
  • https:\/\/pubmed.ncbi.nlm.nih.gov\/24766747\/<\/li>
  • https:\/\/pubmed.ncbi.nlm.nih.gov\/26543719\/<\/li>
  • https:\/\/pubmed.ncbi.nlm.nih.gov\/21206551\/<\/li>
  • https:\/\/pubmed.ncbi.nlm.nih.gov\/26431139\/<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"

    Vitamina D, supranumit\u0103 \u201evitamina soarelui\u201d datorit\u0103 capacit\u0103\u021bii sale de a fi absorbit\u0103 de corp prin expunerea la soare, joac\u0103 un rol important \u00een men\u021binerea s\u0103n\u0103t\u0103\u021bii. Afl\u0103 c\u00e2te tipuri de vitamina D exist\u0103, care sunt rolurile sale principale \u00een organism, c\u00e2nd exist\u0103 un risc de a suferi de un deficit \u0219i care sunt simptomele unui nivel sc\u0103zut de vitamina D \u00een corp. CE ESTE VITAMINA D Vitamina D (calciferol) este o vitamin\u0103 solubil\u0103 \u00een gr\u0103simi care este prezent\u0103 \u00een mod natural \u00een c\u00e2teva alimente, ad\u0103ugat\u0103 altora \u0219i disponibil\u0103 ca supliment alimentar. De asemenea, este produs\u0103 endogen atunci c\u00e2nd razele ultraviolete din lumina soarelui declan\u0219eaz\u0103 \u00een piele sinteza ei. Principalele sale forme, esen\u021biale pentru s\u0103n\u0103tatea organismului, sunt vitamina D2 (ergocalciferol) \u0219i vitamina D3 (colecalciferol). Prima form\u0103 este derivat\u0103 din plante \u0219i fungi expuse la radia\u021bii ultraviolete \u0219i […]<\/p>\n","protected":false},"author":17,"featured_media":22037,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","footnotes":""},"categories":[516],"tags":[517],"class_list":["post-22020","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vitamine-si-minerale","tag-vitamine-si-minerale"],"acf":[],"yoast_head":"\nAfl\u0103 c\u00e2t de important\u0103 este vitamina D pentru organism!<\/title>\n<meta name=\"description\" content=\"C\u00e2nd \u0219i cum se poate manifesta deficitul de vitamina D \u00een organism? 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