{"id":129,"date":"2021-09-10T00:22:59","date_gmt":"2021-09-09T17:22:59","guid":{"rendered":"http:\/\/nhathuoc2.maugiaodien.com\/?p=129"},"modified":"2021-10-27T16:23:28","modified_gmt":"2021-10-27T09:23:28","slug":"vitamin-a-co-tac-dung-gi","status":"publish","type":"post","link":"http:\/\/7pong.com\/vi\/vitamin-a-co-tac-dung-gi.html","title":{"rendered":"Vitamin A c\u00f3 t\u00e1c d\u1ee5ng g\u00ec?"},"content":{"rendered":"\n

C\u00f3 th\u1ec3 b\u1ea1n \u0111\u00e3 bi\u1ebft, Vitamin A c\u00f3 t\u00e1c d\u1ee5ng gi\u00fap t\u0103ng c\u01b0\u1eddng th\u1ecb l\u1ef1c. Ngo\u00e0i ra, lo\u1ea1i Vitamin n\u00e0y c\u00f2n mang nhi\u1ec1u l\u1ee3i \u00edch t\u1ed1t cho s\u1ee9c kh\u1ecfe kh\u00e1c. V\u00ec th\u1ebf, c\u00e1c chuy\u00ean gia dinh d\u01b0\u1ee1ng th\u01b0\u1eddng khuy\u00ean ch\u00fang ta c\u1ea7n b\u1ed5 sung \u0111\u1ea7y \u0111\u1ee7 Vitamin A cho c\u01a1 th\u1ec3. Tuy nhi\u00ean, n\u1ebfu b\u1ed5 sung th\u1eeba ho\u1eb7c thi\u1ebfu c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra h\u1eadu qu\u1ea3 \u0111\u00e1ng ti\u1ebfc n\u00ean c\u1ea7n \u0111\u1eb7c bi\u1ec7t l\u01b0u \u00fd.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Vitamin A l\u00e0 g\u00ec?<\/h2>\n\n\n\n

Vitamin A l\u00e0 t\u00ean c\u1ee7a m\u1ed9t nh\u00f3m c\u00e1c h\u1ee3p ch\u1ea5t h\u00f2a tan trong ch\u1ea5t b\u00e9o bao g\u1ed3m retinol, retinal v\u00e0 retinyl ester. Vitamin A th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y d\u01b0\u1edbi 2 d\u1ea1ng, bao g\u1ed3m:<\/p>\n\n\n\n

– Vitamin A th\u00e0nh h\u00ecnh<\/strong> (retinol v\u00e0 retinyl ester) th\u01b0\u1eddng c\u00f3 trong th\u1ecbt, gan, c\u00e1, c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb s\u1eefa\u2026<\/p>\n\n\n\n

– Ti\u1ec1n ch\u1ea5t vitamin A<\/strong> (carotenoid) c\u00f3 nhi\u1ec1u trong c\u00e1c lo\u1ea1i th\u1ef1c ph\u1ea9m t\u1eeb th\u1ef1c v\u1eadt nh\u01b0 tr\u00e1i c\u00e2y, rau c\u1ee7, d\u1ea7u\u2026 Lo\u1ea1i ti\u1ec1n ch\u1ea5t vitamin A ph\u1ed5 bi\u1ebfn nh\u1ea5t trong th\u1ef1c ph\u1ea9m v\u00e0 s\u1ea3n ph\u1ea9m b\u1ed5 sung l\u00e0 beta-carotene.<\/p>\n\n\n\n

\u0110\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c 2 d\u1ea1ng vitamin A n\u00e0y, c\u01a1 th\u1ec3 ph\u1ea3i chuy\u1ec3n \u0111\u1ed5i ch\u00fang th\u00e0nh retinal v\u00e0 acid retinoic \u2013 c\u00e1c d\u1ea1ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a vitamin.<\/p>\n\n\n\n

V\u00ec vitamin A tan trong ch\u1ea5t b\u00e9o n\u00ean n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c t\u00edch tr\u1eef trong m\u00f4 c\u1ee7a c\u01a1 th\u1ec3 \u0111\u1ec3 s\u1eed d\u1ee5ng sau. H\u1ea7u h\u1ebft c\u00e1c vitamin A trong c\u01a1 th\u1ec3 \u0111\u01b0\u1ee3c d\u1ef1 tr\u1eef trong gan d\u01b0\u1edbi d\u1ea1ng este retinyl. C\u00e1c este n\u00e0y sau \u0111\u00f3 \u0111\u01b0\u1ee3c ph\u00e2n h\u1ee7y th\u00e0nh all-trans-retinol, li\u00ean k\u1ebft v\u1edbi protein li\u00ean k\u1ebft v\u1edbi retinol (RBP) v\u00e0 \u0111i v\u00e0o m\u00e1u \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ch\u1ee9c n\u0103ng c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n

Vitamin A c\u00f3 t\u00e1c d\u1ee5ng g\u00ec?<\/h2>\n\n\n\n

Vitamin A l\u00e0 d\u01b0\u1ee1ng ch\u1ea5t c\u00f3 vai tr\u00f2 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi qu\u00e1 tr\u00ecnh t\u0103ng tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a c\u01a1 th\u1ec3. C\u1ee5 th\u1ec3, lo\u1ea1i vitamin n\u00e0y \u0111em l\u1ea1i nh\u1eefng t\u00e1c d\u1ee5ng sau:<\/p>\n\n\n\n

T\u0103ng c\u01b0\u1eddng s\u1ee9c kh\u1ecfe \u0111\u00f4i m\u1eaft<\/h3>\n\n\n\n

Duy tr\u00ec, b\u1ea3o v\u1ec7 v\u00e0 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng nh\u00ecn c\u1ee7a m\u1eaft l\u00e0 ch\u1ee9c n\u0103ng n\u1ed5i b\u1eadt nh\u1ea5t c\u1ee7a Vitamin A. Nh\u1edd c\u00f3 vitamin A m\u00e0 m\u1eaft c\u00f3 kh\u1ea3 n\u0103ng nh\u00ecn th\u1ea5y trong \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng y\u1ebfu.<\/p>\n\n\n\n

\"Vitamin<\/figure>\n\n\n\n

Vitamin A c\u00f3 t\u00e1c d\u1ee5ng gi\u00fap t\u0103ng c\u01b0\u1eddng s\u1ee9c kh\u1ecfe \u0111\u00f4i m\u1eaft.<\/em><\/p>\n\n\n\n

Thi\u1ebfu h\u1ee5t vitamin A ch\u00ednh l\u00e0 nguy\u00ean nh\u00e2n d\u1eabn \u0111\u1ebfn th\u1ecb l\u1ef1c k\u00e9m v\u00e0o ban \u0111\u00eam, g\u00e2y ra t\u00ecnh tr\u1ea1ng \u201cqu\u00e1ng g\u00e0\u201d l\u00fac tr\u1eddi nh\u00e1 nhem t\u1ed1i. B\u00ean c\u1ea1nh \u0111\u00f3, vitamin A c\u00f2n b\u1ea3o v\u1ec7 gi\u00e1c m\u1ea1c<\/strong>, tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng kh\u00f4 m\u1eaft v\u00e0 c\u00e1c b\u1ec7nh l\u00fd v\u1ec1 m\u1eaft kh\u00e1c.<\/p>\n\n\n\n

Ngo\u00e0i ra, b\u1ed5 sung \u0111\u1ea7y \u0111\u1ee7 vitamin A c\u0169ng nh\u01b0 ti\u1ec1n ch\u1ea5t beta\u2013carotene s\u1ebd gi\u00fap ng\u0103n ng\u1eeba t\u00ecnh tr\u1ea1ng tho\u00e1i h\u00f3a \u0111i\u1ec3m v\u00e0ng v\u00e0 \u0111\u1ee5c th\u1ee7y tinh th\u1ec3<\/strong>. C\u00e1c nghi\u00ean c\u1ee9u cho th\u1ea5y n\u1ed3ng \u0111\u1ed9 beta-carotene, alpha-carotene v\u00e0 beta-cryptoxanthin trong m\u00e1u cao h\u01a1n c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m nguy c\u01a1 tho\u00e1i h\u00f3a \u0111i\u1ec3m v\u00e0ng t\u1edbi 25%.<\/p>\n\n\n\n

T\u0103ng c\u01b0\u1eddng h\u1ec7 th\u1ed1ng mi\u1ec5n d\u1ecbch<\/h3>\n\n\n\n

T\u1ebf b\u00e0o b\u1ea1ch c\u1ea7u lympho T, b\u1ea3o v\u1ec7 c\u01a1 th\u1ec3 kh\u1ecfi c\u00e1c t\u00e1c nh\u00e2n l\u1ea1 v\u00e0 tham gia v\u00e0o h\u1ec7 th\u1ed1ng mi\u1ec5n d\u1ecbch.<\/p>\n\n\n\n

Ngo\u00e0i ra, vitamin A c\u00f2n gi\u1eef vai tr\u00f2 b\u1ea3o v\u1ec7 c\u00e1c bi\u1ec3u m\u00f4 d\u01b0\u1edbi da, ni\u00eam m\u1ea1c kh\u00ed qu\u1ea3n, ph\u1ed5i, ru\u1ed9t non\u2026 gi\u00fap ng\u0103n ch\u1eb7n s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a vi khu\u1ea9n v\u00e0 t\u0103ng c\u01b0\u1eddng s\u1ee9c \u0111\u1ec1 kh\u00e1ng. V\u00ec th\u1ebf, khi thi\u1ebfu Vitamin A c\u01a1 th\u1ec3 d\u1ec5 b\u1ecb vi khu\u1ea9n t\u1ea5n c\u00f4ng khi\u1ebfn th\u1ec3 tr\u1ea1ng y\u1ebfu, d\u1ec5 m\u1eafc b\u1ec7nh, \u0111\u1ed3ng th\u1eddi th\u1eddi gian ph\u1ee5c h\u1ed3i b\u1ec7nh c\u0169ng s\u1ebd l\u00e2u h\u01a1n.<\/p>\n\n\n\n

H\u1ed7 tr\u1ee3 s\u1ee9c kh\u1ecfe x\u01b0\u01a1ng kh\u1edbp<\/h3>\n\n\n\n

Kh\u00f4ng ch\u1ec9 c\u00f3 Canxi v\u00e0 Vitamin D m\u00e0 Vitamin A c\u0169ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c duy tr\u00ec x\u01b0\u01a1ng ch\u1eafc kh\u1ecfe. Theo c\u00e1c chuy\u00ean gia v\u1ec1 x\u01b0\u01a1ng kh\u1edbp, n\u1ed3ng \u0111\u1ed9 retinol trong c\u01a1 th\u1ec3 v\u00e0 m\u1eadt \u0111\u1ed9 kho\u00e1ng x\u01b0\u01a1ng t\u1ea1i x\u01b0\u01a1ng \u0111\u00f9i c\u00f3 m\u1ed1i quan h\u1ec7 m\u1eadt thi\u1ebft v\u1edbi nhau. C\u1ee5 th\u1ec3, ng\u01b0\u1eddi ta nh\u1eadn th\u1ea5y n\u1ed3ng \u0111\u1ed9 retinol \u1edf nh\u1eefng ng\u01b0\u1eddi cao tu\u1ed5i b\u1ecb lo\u00e3ng x\u01b0\u01a1ng th\u01b0\u1eddng th\u1ea5p h\u01a1n so v\u1edbi m\u1ee9c b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n

M\u1ed9t ph\u00e2n t\u00edch t\u1ed5ng h\u1ee3p kh\u00e1c c\u1ee7a c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u cho th\u1ea5y nh\u1eefng ng\u01b0\u1eddi c\u00f3 t\u1ed5ng l\u01b0\u1ee3ng vitamin A trong ch\u1ebf \u0111\u1ed9 \u0103n cao c\u00f3 th\u1ec3 gi\u1ea3m t\u1edbi 6% nguy c\u01a1 g\u00e3y x\u01b0\u01a1ng.<\/p>\n\n\n\n

Ph\u00f2ng ng\u1eeba ung th\u01b0<\/h3>\n\n\n\n

\u0110\u1ebfn nay \u0111\u00e3 c\u00f3 r\u1ea5t nhi\u1ec1u nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u1eb1m ch\u1ee9ng minh Vitamin A hi\u1ec7u qu\u1ea3 ph\u00f2ng ng\u1eeba ung th\u01b0. M\u1ed9t nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean JAMA Dermatology cho r\u1eb1ng vi\u1ec7c t\u0103ng c\u01b0\u1eddng vitamin A trong ch\u1ebf \u0111\u1ed9 \u0103n u\u1ed1ng h\u00e0ng ng\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m nguy c\u01a1 ph\u00e1t tri\u1ec3n ung th\u01b0 bi\u1ec3u m\u00f4 t\u1ebf b\u00e0o v\u1ea3y \u2013 m\u1ed9t d\u1ea1ng ung th\u01b0 da kh\u00e1 ph\u1ed5 bi\u1ebfn.<\/p>\n\n\n\n

B\u00ean c\u1ea1nh \u0111\u00f3, nhi\u1ec1u nghi\u00ean c\u1ee9u kh\u00e1c c\u0169ng \u0111\u01b0a ra k\u1ebft lu\u1eadn vitamin A c\u00f3 th\u1ec3 g\u00f3p ph\u1ea7n ng\u0103n ng\u1eeba c\u00e1c c\u0103n b\u1ec7nh ung th\u01b0 nguy hi\u1ec3m nh\u01b0 ung th\u01b0 v\u00fa, ung th\u01b0 bu\u1ed3ng tr\u1ee9ng, ung th\u01b0 b\u00e0ng quang, ung th\u01b0 tuy\u1ebfn ti\u1ec1n li\u1ec7t v\u00e0 ung th\u01b0 ph\u1ed5i.<\/p>\n\n\n\n

H\u1ed7 tr\u1ee3 \u0111i\u1ec1u tr\u1ecb m\u1ee5n tr\u1ee9ng c\u00e1 v\u00e0 c\u00e1c c\u0103n b\u1ec7nh v\u1ec1 da<\/h3>\n\n\n\n

Lo\u1ea1i vitamin n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng thu h\u1eb9p l\u1ed7 ch\u00e2n l\u00f4ng, gi\u1ea3m s\u1ef1 t\u00edch t\u1ee5 c\u1ee7a vi khu\u1ea9n v\u00e0 b\u1ee5i b\u1ea9n gi\u00fap ng\u0103n ng\u1eeba v\u00e0 h\u1ed7 tr\u1ee3 \u0111i\u1ec1u tr\u1ecb m\u1ee5n tr\u1ee9ng c\u00e1. \u0110\u1ed3ng th\u1eddi, t\u00e1c d\u1ee5ng kh\u00e1ng khu\u1ea9n, ch\u1ed1ng vi\u00eam c\u1ee7a vitamin A s\u1ebd gi\u00fap lo\u1ea1i b\u1ecf d\u1ea7n c\u00e1c v\u1ebft m\u1ee5n v\u00e0 ng\u0103n ng\u1eeba ch\u00fang h\u00ecnh th\u00e0nh trong t\u01b0\u01a1ng lai. D\u01b0\u1ee1ng ch\u1ea5t n\u00e0y c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u qu\u1ea3 \u0111i\u1ec1u tr\u1ecb c\u00e1c c\u0103n b\u1ec7nh nh\u01b0<\/strong> v\u1ea3y n\u1ebfn, eczema<\/strong>\u2026<\/p>\n\n\n\n

Kh\u00f4ng nh\u1eefng th\u1ebf, Vitamin A c\u00f2n h\u1ed7 tr\u1ee3 l\u00e0n da t\u01b0\u01a1i tr\u1ebb, s\u0103n ch\u1eafc. Theo nghi\u00ean c\u1ee9u, vitamin A c\u00f3 kh\u1ea3 n\u0103ng k\u00edch th\u00edch qu\u00e1 tr\u00ecnh t\u00e1i t\u1ea1o c\u1ee7a t\u1ebf b\u00e0o, th\u00fac \u0111\u1ea9y chu tr\u00ecnh s\u1ea3n sinh, t\u1ed5ng h\u1ee3p collagen<\/strong>, gi\u00fap ch\u1ed1ng l\u1ea1i l\u00e3o ho\u00e1 v\u00e0 duy tr\u00ec \u0111\u1ed9 \u0111\u00e0n h\u1ed3i c\u1ee7a l\u00e0n da. Ngo\u00e0i ra, n\u00f3 c\u0169ng gi\u00fap b\u1ea3o v\u1ec7 da kh\u1ecfi s\u1ef1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a g\u1ed1c t\u1ef1 do v\u00e0 \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi. Nh\u1edd \u0111\u00f3 m\u00e0 h\u1eafc s\u1eafc t\u1ed1 melanin \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t, l\u00e0n da lu\u00f4n gi\u1eef \u0111\u01b0\u1ee3c v\u1ebb tr\u1eafng s\u00e1ng, tr\u00e1nh \u0111\u01b0\u1ee3c c\u00e1c \u0111\u1ed1m s\u1ea1m \u0111en<\/strong> v\u00e0 th\u00e2m n\u00e1m.<\/p>\n\n\n\n

Quan tr\u1ecdng cho kh\u1ea3 n\u0103ng sinh s\u1ea3n v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a thai nhi<\/h3>\n\n\n\n

Vitamin A c\u00f3 li\u00ean quan \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a tinh tr\u00f9ng v\u00e0 tr\u1ee9ng. Thi\u1ebfu h\u1ee5t vitamin A ng\u0103n c\u1ea3n s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c t\u1ebf b\u00e0o tinh tr\u00f9ng d\u1eabn \u0111\u1ebfn v\u00f4 sinh \u1edf nam v\u00e0 gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng tr\u1ee9ng \u1edf ph\u1ee5 n\u1eef<\/strong>. Do \u0111\u00f3, b\u1ed5 sung vitamin A l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi nh\u1eefng ai \u0111ang mu\u1ed1n th\u1ee5 thai.<\/p>\n\n\n\n

B\u00ean c\u1ea1nh \u0111\u00f3, lo\u1ea1i vitamin n\u00e0y c\u0169ng r\u1ea5t c\u1ea7n thi\u1ebft cho s\u1ef1 ph\u00e1t tri\u1ec3n kh\u1ecfe m\u1ea1nh c\u1ee7a thai ph\u1ee5 v\u00e0 em b\u00e9. Vitamin A gi\u00fap h\u1ea1n ch\u1ebf t\u00ecnh tr\u1ea1ng nhi\u1ec5m \u0111\u1ed9c thai ngh\u00e9n v\u00e0 ng\u0103n ng\u1eeba t\u00ecnh tr\u1ea1ng r\u1ed1i lo\u1ea1n ph\u00e1t tri\u1ec3n. \u0110\u1eb7c bi\u1ec7t, \u1edf nh\u1eefng b\u00e0 m\u1eb9 nhi\u1ec5m HIV, thi\u1ebfu h\u1ee5t vitamin A c\u00f3 th\u1ec3 l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng l\u00e2y truy\u1ec1n HIV t\u1eeb m\u1eb9 sang con.<\/p>\n\n\n\n

Vitamin A tham gia v\u00e0o s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c c\u01a1 quan \u1edf thai nhi nh\u01b0 h\u1ec7 th\u1ea7n kinh, tim, th\u1eadn, m\u1eaft, ph\u1ed5i, tuy\u1ebfn t\u1ee5y\u2026tuy nhi\u00ean vi\u1ec7c thi\u1ebfu hay d\u01b0 th\u1eeba vitamin A trong th\u1eddi k\u00ec mang thai c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c d\u1ecb t\u1eadt b\u1ea9m sinh \u1edf thai nhi.<\/p>\n\n\n\n

H\u1eadu qu\u1ea3 c\u1ee7a thi\u1ebfu vitamin A<\/h2>\n\n\n\n
\"Kh\u00f4<\/figure>\n\n\n\n

Kh\u00f4 m\u1eaft, m\u1ecfi m\u1eaft l\u00e0 h\u1eadu qu\u1ea3 khi c\u01a1 th\u1ec3 thi\u1ebfu Vitamin A.<\/em><\/p>\n\n\n\n

Khi c\u01a1 th\u1ec3 thi\u1ebfu Vitamin A c\u00f3 th\u1ec3 s\u1ebd g\u1eb7p ph\u1ea3i nhi\u1ec1u h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng nh\u01b0:<\/p>\n\n\n\n

– G\u00e2y b\u1ec7nh kh\u00f4 m\u1eaft trong \u0111\u00f3 c\u00f3 v\u1ec7t Bitot, kh\u00f4 gi\u00e1c m\u1ea1c, nhuy\u1ec5n gi\u00e1c m\u1ea1c d\u1eabn \u0111\u1ebfn s\u1eb9o gi\u00e1c m\u1ea1c g\u00e2y m\u00f9 v\u0129nh vi\u1ec5n.<\/p>\n\n\n\n

– L\u00e0m tho\u00e1i h\u00f3a, s\u1eebng h\u00f3a c\u00e1c t\u1ebf b\u00e0o bi\u1ec3u m\u00f4 gi\u1ea3m ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 c\u01a1 th\u1ec3.<\/p>\n\n\n\n

– L\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng \u0111\u1ec1 kh\u00e1ng v\u1edbi b\u1ec7nh t\u1eadt n\u00ean t\u0103ng t\u1ef7 l\u1ec7 t\u1eed vong \u1edf tr\u1ebb em.<\/p>\n\n\n\n

– L\u00e0m tr\u1ebb ch\u1eadm l\u1edbn, n\u1ebfu thi\u1ebfu vitamin A s\u1edbm c\u00f3 th\u1ec3 c\u00f2n \u1ea3nh h\u01b0\u1edfng t\u1edbi ph\u00e1t tri\u1ec3n tr\u00ed tu\u1ec7 c\u1ee7a tr\u1ebb khi \u0111\u1ebfn tu\u1ed5i \u0111i h\u1ecdc.<\/p>\n\n\n\n

H\u1eadu qu\u1ea3 c\u1ee7a th\u1eeba vitamin A<\/h2>\n\n\n\n

Vitamin A ch\u1ec9 ph\u00e1t huy t\u1ed1t c\u00f4ng d\u1ee5ng c\u1ee7a n\u00f3 khi \u0111\u01b0\u1ee3c b\u1ed5 sung \u0111\u00fang v\u00e0 \u0111\u1ee7, n\u1ebfu thi\u1ebfu hay th\u1eeba \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i h\u1eadu qu\u1ea3 \u0111\u00e1ng ti\u1ebfc.<\/p>\n\n\n\n

Khi b\u1ed5 sung vitamin A v\u1edbi l\u01b0\u1ee3ng l\u1edbn ho\u1eb7c k\u00e9o d\u00e0i s\u1ebd d\u1eabn \u0111\u1ebfn th\u1eeba vitamin A v\u00e0 c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng nh\u01b0:<\/p>\n\n\n\n

– G\u00e2y ng\u1ed9 \u0111\u1ed9c l\u00e0m t\u0103ng \u00e1p l\u1ef1c n\u1ed9i s\u1ecd d\u1eabn \u0111\u1ebfn bu\u1ed3n n\u00f4n, n\u00f4n, \u0111au \u0111\u1ea7u.<\/p>\n\n\n\n

– \u1ede tr\u1ebb nh\u1ecf c\u00f3 bi\u1ec3u hi\u1ec7n th\u00f3p ph\u1ed3ng.<\/p>\n\n\n\n

– \u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a x\u01b0\u01a1ng l\u00e0m tr\u1ebb ch\u1eadm l\u1edbn, r\u1ed1i lo\u1ea1n th\u1ea7n kinh v\u00e0 nhi\u1ec1u h\u1eadu qu\u1ea3 kh\u00e1c nh\u01b0: ng\u1ee9a da v\u1ea9y n\u1ebfn, xung huy\u1ebft \u1edf da v\u00e0 c\u00e1c ni\u00eam m\u1ea1c, t\u00f3c kh\u00f4, x\u01a1 x\u00e1c, d\u1ec5 g\u00e3y, vi\u00eam ni\u00eam m\u1ea1c mi\u1ec7ng, m\u00f4i kh\u00f4, n\u1ee9t n\u1ebb hai b\u00ean m\u00e9p, gan to, bong da \u1edf gan b\u00e0n tay, gan b\u00e0n ch\u00e2n.<\/p>\n\n\n\n

– Ph\u1ee5 n\u1eef tr\u01b0\u1edbc khi mang thai v\u00e0 c\u00f3 thai 3 th\u00e1ng \u0111\u1ea7u n\u1ebfu b\u1ed5 sung th\u1eeba vitamin A c\u00f3 th\u1ec3 g\u00e2y qu\u00e1i thai nh\u01b0: h\u1edf h\u00e0m \u1ebfch, d\u1ecb d\u1ea1ng tim m\u1ea1ch, c\u01a1, x\u01b0\u01a1ng, h\u1ec7 th\u1ea7n kinh trung \u01b0\u01a1ng…<\/p>\n\n\n\n

Nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0o c\u1ea7n \u0111\u01b0\u1ee3c b\u1ed5 sung Vitamin A<\/h2>\n\n\n\n
\"Tr\u1ebb<\/figure>\n\n\n\n

Tr\u1ebb m\u1eafc b\u1ec7nh s\u1edfi l\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ea7n \u0111\u01b0\u1ee3c b\u1ed5 sung Vitamin A.<\/em><\/p>\n\n\n\n

Vitamin A c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, nh\u01b0:<\/p>\n\n\n\n

Thi\u1ebfu vitamin A: <\/strong>thi\u1ebfu vitamin A c\u00f3 th\u1ec3 x\u1ea3y ra tr\u00ean nh\u1eefng ng\u01b0\u1eddi suy dinh d\u01b0\u1ee1ng, \u0111\u00e1i th\u00e1o \u0111\u01b0\u1eddng, b\u1ecb b\u1ec7nh u x\u01a1 nang,…<\/p>\n\n\n\n

Tr\u1ebb thi\u1ebfu vitamin A m\u1eafc b\u1ec7nh s\u1edfi:<\/strong> u\u1ed1ng vi\u00ean b\u1ed5 sung vitamin A d\u01b0\u1eddng nh\u01b0 h\u1ea1 th\u1ea5p nguy c\u01a1 t\u1eed vong ho\u1eb7c nguy c\u01a1 x\u1ea3y ra bi\u1ebfn ch\u1ee9ng c\u1ee7a b\u1ec7nh s\u1edfi.<\/p>\n\n\n\n

B\u1ea1ch s\u1ea3n ni\u00eam v\u00f9ng mi\u1ec7ng:<\/strong> c\u00e1c nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ec9 ra u\u1ed1ng b\u1ed5 sung vitamin A c\u00f3 th\u1ec3 gi\u00fap \u0111i\u1ec1u tr\u1ecb b\u1ea1ch s\u1ea3n ni\u00eam v\u00f9ng mi\u1ec7ng.<\/p>\n\n\n\n

Gi\u1ea3m ti\u00eau ch\u1ea3y sau sinh \u0111\u1ebb:<\/strong> b\u1ed5 sung vitamin A trong khi mang thai v\u00e0 sau khi sinh n\u1edf \u1edf thai ph\u1ee5 k\u00e9m dinh d\u01b0\u1ee1ng gi\u00fap h\u1ea1n ch\u1ebf x\u1ea3y ra t\u00ecnh tr\u1ea1ng ti\u00eau ch\u1ea3y sau sinh \u0111\u1ebb.<\/p>\n\n\n\n

Gi\u1ea3m t\u1eed vong trong thai s\u1ea3n:<\/strong> thai ph\u1ee5 k\u00e9m dinh d\u01b0\u1ee1ng n\u1ebfu u\u1ed1ng b\u1ed5 sung vitamin A tr\u01b0\u1edbc v\u00e0 trong thai k\u1ef3 gi\u00fap gi\u1ea3m 40% t\u1ef7 l\u1ec7 t\u1eed vong.<\/p>\n\n\n\n

Ph\u00f2ng tr\u00e1nh qu\u00e1ng g\u00e0 trong thai s\u1ea3n:<\/strong> thai ph\u1ee5 k\u00e9m dinh d\u01b0\u1ee1ng n\u1ebfu u\u1ed1ng b\u1ed5 sung vitamin A s\u1ebd gi\u00fap gi\u1ea3m 37% t\u1ec9 l\u1ec7 m\u1eafc b\u1ec7nh, v\u00e0 c\u00e0ng hi\u1ec7u qu\u1ea3 h\u01a1n n\u1ebfu u\u1ed1ng b\u1ed5 sung vitamin A c\u00f9ng v\u1edbi nguy\u00ean t\u1ed1 vi l\u01b0\u1ee3ng k\u1ebdm.<\/p>\n\n\n\n

B\u1ec7nh l\u00fd m\u1eaft \u1ea3nh h\u01b0\u1edfng t\u1edbi v\u00f5ng m\u1ea1c:<\/strong> u\u1ed1ng b\u1ed5 sung vitamin A c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm ti\u1ebfn tri\u1ec3n c\u1ee7a c\u00e1c b\u1ec7nh v\u1ec1 m\u1eaft c\u00f3 g\u00e2y t\u1ed5n h\u1ea1i t\u1edbi v\u00f5ng m\u1ea1c.<\/p>\n\n\n\n

Ung th\u01b0 c\u1ed5 t\u1eed cung:<\/strong> c\u00e1c nghi\u00ean c\u1ee9u ch\u1ec9 ra r\u1eb1ng b\u1ed5 sung li\u1ec1u cao vitamin A c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m gi\u1ea3m nguy c\u01a1 m\u1eafc ung th\u01b0 c\u1ed5 t\u1eed cung. Tuy nhi\u00ean l\u1ee3i \u00edch n\u00e0y ch\u1ec9 \u0111\u1ea1t \u0111\u01b0\u1ee3c khi b\u1ed5 sung c\u1ea3 hai d\u1ea1ng c\u1ee7a vitamin A l\u00e0 retinol v\u00e0 carotene, n\u1ebfu ch\u1ec9 s\u1eed d\u1ee5ng \u0111\u01a1n \u0111\u1ed9c retinol th\u00ec s\u1ebd kh\u00f4ng c\u00f3 t\u00e1c d\u1ee5ng.<\/p>\n\n\n\n

Nhu c\u1ea7u Vitamin A m\u1ed7i ng\u00e0y c\u1ee7a t\u1eebng \u0111\u1ed1i t\u01b0\u1ee3ng<\/h2>\n\n\n\n

Nhu c\u1ea7u v\u1ec1 vitamin A c\u1ee7a m\u1ed7i ng\u01b0\u1eddi s\u1ebd ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 tu\u1ed5i, c\u00e2n n\u1eb7ng v\u00e0 s\u1ee9c kh\u1ecfe t\u1ed5ng th\u1ec3 c\u1ee7a ng\u01b0\u1eddi \u0111\u00f3. D\u1ef1a v\u00e0o b\u1ea3ng sau \u0111\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin chi ti\u1ebft.<\/p>\n\n\n\n

\"Nhu<\/figure>\n\n\n\n

B\u1ea3ng nhu c\u1ea7u dinh d\u01b0\u1ee1ng khuy\u1ebfn ngh\u1ecb cho ng\u01b0\u1eddi Vi\u1ec7t Nam n\u0103m 2014.<\/em><\/p>\n\n\n\n

Th\u1eddi gian b\u1ed5 sung Vitamin A t\u1ed1t nh\u1ea5t<\/h2>\n\n\n\n

C\u00f3 th\u1ec3 b\u1ed5 sung vitamin A v\u00e0o b\u1ea5t k\u1ef3 th\u1eddi \u0111i\u1ec3m n\u00e0o trong ng\u00e0y \u0111\u1ec1u \u0111\u01b0\u1ee3c; nh\u01b0ng n\u1ebfu s\u1eed d\u1ee5ng vitamin A d\u1ea1ng vi\u00ean, th\u00ec th\u1eddi \u0111i\u1ec3m s\u1eed d\u1ee5ng t\u1ed1t nh\u1ea5t v\u1eabn l\u00e0 sau b\u1eefa \u0103n \u0111\u1ec3 c\u01a1 th\u1ec3 h\u1ea5p th\u1ee5 ch\u00fang m\u1ed9t c\u00e1ch t\u1ed1t nh\u1ea5t.<\/p>\n\n\n\n

C\u00e1ch ph\u00f2ng ch\u1ed1ng thi\u1ebfu Vitamin A<\/h2>\n\n\n\n
\"B\u1ed5<\/figure>\n\n\n\n

B\u1ed5 sung th\u1ef1c ph\u1ea9m gi\u00e0u Vitamin A l\u00e0 c\u00e1ch ph\u00f2ng ng\u1eeba thi\u1ebfu Vitamin A t\u1ed1t nh\u1ea5t.<\/em><\/p>\n\n\n\n

Th\u1eeba Vitamin A c\u00f3 th\u1ec3 hi\u1ebfm g\u1eb7p nh\u01b0ng thi\u1ebfu Vitamin A th\u00ec r\u1ea5t ph\u1ed5 bi\u1ebfn, \u0111\u1ec3 ph\u00f2ng thi\u1ebfu Vitamin n\u00e0y m\u1ed9t c\u00e1ch t\u1ed1t nh\u1ea5t, tr\u01b0\u1edbc h\u1ebft b\u1ea1n c\u1ea7n \u0111\u1ebfn th\u0103m kh\u00e1m b\u00e1c s\u0129 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh nhu c\u1ea7u Vitamin A c\u1ee7a c\u01a1 th\u1ec3. \u0110\u1ec3 b\u1ed5 sung, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o m\u1ed9t s\u1ed1 c\u00e1ch sau:<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi tr\u1ebb nh\u1ecf \u0111\u1ec3 ph\u00f2ng thi\u1ebfu Vitamin A c\u1ea7n nu\u00f4i con b\u1eb1ng s\u1eefa m\u1eb9<\/strong>, cho tr\u1ebb b\u00fa m\u1eb9 ho\u00e0n to\u00e0n \u0111\u1ebfn 6 th\u00e1ng tu\u1ed5i v\u00e0 ti\u1ebfp t\u1ee5c cho b\u00fa t\u1edbi 24 th\u00e1ng gi\u00fap \u0111\u1ea3m b\u1ea3o nhu c\u1ea7u vitamin A.<\/p>\n\n\n\n

Duy tr\u00ec ch\u1ebf \u0111\u1ed9 \u0103n \u0111a d\u1ea1ng th\u1ef1c ph\u1ea9m, s\u1eed d\u1ee5ng th\u1ef1c ph\u1ea9m gi\u00e0u vitamin A<\/strong>. C\u00e1c lo\u1ea1i th\u1ef1c ph\u1ea9m gi\u00e0u Vitamin A bao g\u1ed3m: Tr\u1ee9ng, c\u00e1, th\u1ecbt, gan, s\u1eefa, rau mu\u1ed1ng, x\u00e0 l\u00e1ch, rau ng\u00f3t, rau di\u1ebfp, rau d\u1ec1n, h\u00e0nh l\u00e1, h\u1eb9 l\u00e1, rau th\u01a1m, c\u00e1c lo\u1ea1i c\u1ee7 qu\u1ea3 nh\u01b0 g\u1ea5c, c\u00e0 r\u1ed1t, qu\u1ea3 ch\u00edn nh\u01b0 \u0111u \u0111\u1ee7, xo\u00e0i\u2026 Ngo\u00e0i ra, c\u0169ng c\u1ea7n ch\u00fa \u00fd cung c\u1ea5p ngu\u1ed3n th\u1ef1c ph\u1ea9m gi\u00e0u \u0111\u1ea1m, ch\u1ea5t b\u00e9o<\/strong> cho b\u1eefa \u0103n h\u00e0ng ng\u00e0y \u0111\u1ec3 gi\u00fap c\u00e2n b\u1eb1ng dinh d\u01b0\u1ee1ng.<\/p>\n\n\n\n

S\u1eed d\u1ee5ng th\u1ef1c ph\u1ea9m ch\u1ee9c n\u0103ng b\u1ed5 sung Vitamin A c\u0169ng l\u00e0 c\u00e1ch b\u1ed5 sung Vitamin A \u0111\u1ea7y \u0111\u1ee7, an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3. Lo\u1ea1i th\u1ef1c ph\u1ea9m n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u k\u1ef9 l\u01b0\u1ee1ng v\u1ec1 th\u00e0nh ph\u1ea7n, h\u00e0m l\u01b0\u1ee3ng t\u1eeb nh\u00e0 s\u1ea3n xu\u1ea5t v\u00ec th\u1ebf b\u1ea1n c\u00f3 th\u1ec3 an t\u00e2m s\u1eed d\u1ee5ng.<\/p>\n\n\n\n

Tr\u00ean \u0111\u00e2y l\u00e0 to\u00e0n b\u1ed9 b\u00e0i vi\u1ebft v\u1ec1 Vitamin A<\/strong>, t\u00e1c d\u1ee5ng c\u1ee7a Vitamin A \u0111\u1ed1i v\u1edbi c\u01a1 th\u1ec3 c\u0169ng nh\u01b0 nh\u1eefng \u1ea3nh h\u01b0\u1edfng khi thi\u1ebfu ho\u1eb7c th\u1eeba ch\u00fang. Hy v\u1ecdng qua b\u00e0i vi\u1ebft n\u00e0y b\u1ea1n \u0111\u00e3 nh\u1eadn th\u1ea5y \u0111\u01b0\u1ee3c t\u1ea7m quan tr\u1ecdng c\u1ee7a lo\u1ea1i Vitamin n\u00e0y, t\u1eeb \u0111\u00f3 c\u00f3 k\u1ebf ho\u1ea1ch b\u1ed5 sung ho\u1eb7c h\u1ea1n ch\u1ebf th\u00edch h\u1ee3p gi\u00fap ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe m\u1ed9t c\u00e1ch to\u00e0n di\u1ec7n.<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00f3 th\u1ec3 b\u1ea1n \u0111\u00e3 bi\u1ebft, Vitamin A c\u00f3 t\u00e1c d\u1ee5ng gi\u00fap t\u0103ng c\u01b0\u1eddng th\u1ecb l\u1ef1c. Ngo\u00e0i ra, lo\u1ea1i Vitamin n\u00e0y c\u00f2n mang nhi\u1ec1u l\u1ee3i \u00edch t\u1ed1t cho s\u1ee9c kh\u1ecfe kh\u00e1c. V\u00ec th\u1ebf, c\u00e1c chuy\u00ean gia dinh d\u01b0\u1ee1ng th\u01b0\u1eddng khuy\u00ean ch\u00fang ta c\u1ea7n b\u1ed5 sung \u0111\u1ea7y \u0111\u1ee7 Vitamin A cho c\u01a1 th\u1ec3. Tuy nhi\u00ean, n\u1ebfu b\u1ed5…<\/p>\n","protected":false},"author":1,"featured_media":130,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[69,16],"tags":[],"class_list":["post-129","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goc-suc-khoe","category-tin-tuc"],"_links":{"self":[{"href":"http:\/\/7pong.com\/vi\/wp-json\/wp\/v2\/posts\/129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/7pong.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/7pong.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/7pong.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/7pong.com\/vi\/wp-json\/wp\/v2\/comments?post=129"}],"version-history":[{"count":2,"href":"http:\/\/7pong.com\/vi\/wp-json\/wp\/v2\/posts\/129\/revisions"}],"predecessor-version":[{"id":468,"href":"http:\/\/7pong.com\/vi\/wp-json\/wp\/v2\/posts\/129\/revisions\/468"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/7pong.com\/vi\/wp-json\/wp\/v2\/media\/130"}],"wp:attachment":[{"href":"http:\/\/7pong.com\/vi\/wp-json\/wp\/v2\/media?parent=129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/7pong.com\/vi\/wp-json\/wp\/v2\/categories?post=129"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/7pong.com\/vi\/wp-json\/wp\/v2\/tags?post=129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}