Vitamine A CAS: 68-26-8

Vitamine A igira uruhare mu gutandukanya uturemangingo, ikaba ari ingenzi mu iterambere risanzwe no kubungabunga uturemangingo nk'uruhu, imyanya y'ubuhumekero, n'inzira y'igifu. Inagira uruhare mu mikorere no mu mikorere y'uturemangingo. Inkomoko ya Vitamine A irimo umwijima, amavuta y'umwijima w'amafi, ibikomoka ku mata, n'ibiribwa bikungahaye ku ntungamubiri, ndetse n'imbuto n'imboga bifite amabara menshi. Inshingano y'ibanze ya Vitamine A ni ugushyigikira kureba, cyane cyane mu bihe by'urumuri ruto. Ifasha kubungabunga ubuzima bw'imboni n'izindi ngingo z'amaso, kandi kubura kwayo bishobora gutera ubuhumyi bw'ijoro ndetse amaherezo no guhuma burundu. Byongeye kandi, Vitamine A ni ingenzi mu mikorere myiza y'ubudahangarwa bw'umubiri, kuko ishyigikira ubusugire bw'uruhu n'uturemangingo tw'imitsi, bikora nk'imbogamizi ku kwandura. Byongeye kandi, Vitamine A ni ingenzi mu mikurire isanzwe no gukura, kuko igira uruhare runini mu gutandukanya uturemangingo no kubungabunga uturemangingo tuzima, harimo uruhu, imyanya y'ubuhumekero, n'inzira y'igifu. Uruhare rwayo mu mikorere no kugenzura uturemangingo nabyo bigira uruhare mu buzima rusange. Ku bagore batwite, Vitamine A ni ingenzi mu mikurire y'umwana uri mu nda. Muri rusange, Vitamine A ni ingenzi mu kureba, imikorere y'ubudahangarwa bw'umubiri, n'ubuzima bw'uturemangingo, bigatuma iba intungamubiri y'ingenzi mu mibereho myiza muri rusange. Ariko, ni ngombwa kuyirya ku rugero rukwiye, kuko kurya vitamine A cyane bishobora gutera uburozi n'ingaruka mbi ku buzima.