\n $\"U\u1ed1ng$ \n <\/div>

Vitamin C t\u1ed1t cho da nh\u01b0ng \u0111i\u1ec1u \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 b\u1ed5 sung c\u00e0ng nhi\u1ec1u th\u00ec c\u00e0ng t\u1ed1t.<\/p>\n<\/figcaption><\/figure>\n

V\u00ec v\u1eady, \u1ee9c ch\u1ebf sinh t\u1ed5ng h\u1ee3p tyrosinase l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 l\u00e0m tr\u1eafng da. Vitamin C c\u00f3 th\u1ec3 \u1ee9c ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a tyrosinase, ng\u0103n ch\u1eb7n s\u1ef1 s\u1ea3n xu\u1ea5t melanin v\u00e0 c\u00f3 \u0111\u1eb7c t\u00ednh ch\u1ed1ng oxy h\u00f3a nh\u1ea5t \u0111\u1ecbnh, c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m melanin, gi\u00fap c\u1ea3i thi\u1ec7n t\u00ecnh tr\u1ea1ng da x\u1ec9n m\u00e0u v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 l\u00e0m tr\u1eafng.<\/p>\n

Ngo\u00e0i ra, d\u00f9 vitamin C kh\u00f4ng ph\u1ea3i l\u00e0 th\u00e0nh ph\u1ea7n ch\u1ed1ng n\u1eafng nh\u01b0ng c\u00f3 th\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c g\u1ed1c t\u1ef1 do do tia c\u1ef1c t\u00edm<\/a> g\u00e2y ra. M\u1ea5t collagen<\/a> c\u0169ng l\u00e0 y\u1ebfu t\u1ed1 ch\u00ednh g\u00e2y ra l\u00e3o h\u00f3a da v\u00e0 n\u1ebfp nh\u0103n, vitamin C c\u00f3 th\u1ec3 th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh t\u1ed5ng h\u1ee3p collagen, ng\u0103n ng\u1eeba m\u1ea5t collagen, n\u00ean c\u00f3 t\u00e1c d\u1ee5ng ch\u1ed1ng l\u00e3o h\u00f3a, gi\u1ea3m n\u1ebfp nh\u0103n.<\/p>\n

Nh\u01b0ng \u0111i\u1ec1u \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 b\u1ed5 sung vitamin C c\u00e0ng nhi\u1ec1u th\u00ec c\u00e0ng t\u1ed1t, c\u1ea7n ph\u1ea3i c\u00f3 li\u1ec1u l\u01b0\u1ee3ng. U\u1ed1ng m\u1ed9t l\u01b0\u1ee3ng l\u1edbn vitamin C trong th\u1eddi gian d\u00e0i s\u1ebd g\u00e2y h\u1ea1i cho c\u01a1 th\u1ec3.<\/p>\n

2. Nguy hi\u1ec3m khi d\u00f9ng qu\u00e1 nhi\u1ec1u vitamin C<\/h2>\n
Vitamin C nh\u00ecn chung l\u00e0 an to\u00e0n khi b\u1ed5 sung t\u1eeb th\u1ef1c ph\u1ea9m. Nh\u1eefng ng\u01b0\u1eddi s\u1eed d\u1ee5ng vitamin C \u1edf d\u1ea1ng th\u1ef1c ph\u1ea9m ch\u1ee9c n\u0103ng c\u00f3 nguy c\u01a1 ti\u00eau th\u1ee5 qu\u00e1 nhi\u1ec1u v\u00e0 g\u1eb7p c\u00e1c t\u00e1c d\u1ee5ng ph\u1ee5, bao g\u1ed3m:<\/p>\n
– Vitamin C c\u00f3 t\u00ednh axit, qu\u00e1 li\u1ec1u c\u00f3 th\u1ec3 g\u00e2y k\u00edch \u1ee9ng ni\u00eam m\u1ea1c \u0111\u01b0\u1eddng ti\u00eau h\u00f3a, g\u00e2y \u0111au b\u1ee5ng, ti\u00eau ch\u1ea3y, bu\u1ed3n n\u00f4n, n\u00f4n, lo\u00e9t d\u1ea1 d\u00e0y v\u00e0 c\u00e1c tri\u1ec7u ch\u1ee9ng kh\u00e1c c\u1ee7a h\u1ec7 ti\u00eau h\u00f3a.<\/p>\n
– B\u1ed5 sung qu\u00e1 li\u1ec1u vitamin C<\/a> l\u00e0m t\u0103ng n\u1ed3ng \u0111\u1ed9 axit oxalic v\u00e0 axit uric trong c\u01a1 th\u1ec3, t\u0103ng nguy c\u01a1 m\u1eafc b\u1ec7nh gout, s\u1ecfi th\u1eadn.<\/p>\n
– Qu\u00e1 nhi\u1ec1u vitamin C c\u0169ng s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u01a1 ch\u1ebf ch\u1ed1ng \u0111\u00f4ng m\u00e1u c\u1ee7a c\u01a1 th\u1ec3, ch\u1ee9c n\u0103ng ti\u1ec3u c\u1ea7u d\u1ec5 b\u1ecb r\u1ed1i lo\u1ea1n d\u1eabn \u0111\u1ebfn huy\u1ebft kh\u1ed1i, t\u0103ng nguy c\u01a1 nh\u1ed3i m\u00e1u n\u00e3o.<\/p>\n
N\u1ebfu u\u1ed1ng h\u01a1n 2500 mg vitamin C c\u00f9ng m\u1ed9t l\u00fac, c\u00f3 th\u1ec3 khi\u1ebfn m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn h\u1ed3ng c\u1ea7u b\u1ecb v\u1ee1, d\u1eabn \u0111\u1ebfn c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng nghi\u00eam tr\u1ecdng nh\u01b0 tan m\u00e1u. V\u00ec v\u1eady, t\u1ed1t nh\u1ea5t kh\u00f4ng n\u00ean v\u01b0\u1ee3t qu\u00e1 li\u1ec1u l\u01b0\u1ee3ng cho ph\u00e9p.<\/p>\n
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\n $\"U\u1ed1ng$ \n <\/div>
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Th\u1ef1c ph\u1ea9m gi\u00e0u vitamin C.<\/p>\n<\/figcaption><\/figure>\n
3. U\u1ed1ng vitamin C nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 l\u00e0m tr\u1eafng t\u1ed1t nh\u1ea5t?<\/h2>\n
C\u01a1 th\u1ec3 con ng\u01b0\u1eddi kh\u00f4ng th\u1ec3 t\u1ef1 s\u1ea3n xu\u1ea5t vitamin C n\u00ean vi\u1ec7c h\u1ea5p th\u1ee5 vitamin C v\u00e0o c\u01a1 th\u1ec3 ch\u1ee7 y\u1ebfu \u0111\u1ebfn t\u1eeb ch\u1ebf \u0111\u1ed9 \u0103n u\u1ed1ng. Ch\u1ebf \u0111\u1ed9 \u0103n u\u1ed1ng ph\u1ed5 bi\u1ebfn c\u1ee7a vitamin C l\u00e0 \u0103n nhi\u1ec1u tr\u00e1i c\u00e2y v\u00e0 rau qu\u1ea3.<\/p>\n
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C\u00e1c lo\u1ea1i tr\u00e1i c\u00e2y gi\u00e0u vitamin C bao g\u1ed3m: Cam, qu\u00fdt, kiwi, l\u00ea, t\u00e1o, chu\u1ed1i, \u0111\u00e0o, anh \u0111\u00e0o, d\u00e2u t\u00e2y, v\u1ea3i thi\u1ec1u…<\/i><\/li>\n
C\u00e1c lo\u1ea1i rau gi\u00e0u vitamin C bao g\u1ed3m: \u1edat, m\u01b0\u1edbp \u0111\u1eafng, c\u00e0 chua, s\u00fap l\u01a1, c\u00e1c lo\u1ea1i rau l\u00e1 xanh, b\u1eafp c\u1ea3i, c\u1ea7n t\u00e2y, rau di\u1ebfp, b\u00ed \u0111\u1ecf…<\/i><\/li>\n<\/ul>\n
N\u1ebfu c\u1ea7n b\u1ed5 sung vitamin C \u0111\u01b0\u1eddng u\u1ed1ng th\u00ec c\u1ea7n \u0111\u1eb7c bi\u1ec7t l\u01b0u \u00fd li\u1ec1u l\u01b0\u1ee3ng cho ph\u00e9p v\u00e0 m\u1ed9t s\u1ed1 \u0111i\u1ec3m sau:<\/p>\n
– Vitamin C kh\u00f4ng \u0111\u01b0\u1ee3c u\u1ed1ng khi b\u1ee5ng \u0111\u00f3i, c\u0169ng kh\u00f4ng \u0111\u01b0\u1ee3c u\u1ed1ng c\u00f9ng v\u1edbi tr\u00e0, s\u1eefa hay c\u00e1c lo\u1ea1i n\u01b0\u1edbc kh\u00e1c. Hi\u1ec7u qu\u1ea3 t\u1ed1t nh\u1ea5t l\u00e0 u\u1ed1ng v\u1edbi n\u01b0\u1edbc l\u1ecdc v\u00e0 u\u1ed1ng sau b\u1eefa \u0103n. Vitamin C kh\u00f4ng ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao n\u00ean khi u\u1ed1ng vi\u00ean s\u1ee7i vitamin C kh\u00f4ng n\u00ean h\u00f2a tan trong n\u01b0\u1edbc qu\u00e1 n\u00f3ng m\u00e0 h\u00e3y d\u00f9ng n\u01b0\u1edbc \u1ea5m ho\u1eb7c n\u01b0\u1edbc l\u1ea1nh \u0111\u1ec3 h\u00f2a tan, n\u1ebfu kh\u00f4ng d\u01b0\u1ee3c t\u00ednh s\u1ebd b\u1ecb m\u1ea5t.<\/p>\n
– T\u00f9y thu\u1ed9c v\u00e0o th\u1ec3 ch\u1ea5t c\u1ee7a m\u1ed7i ng\u01b0\u1eddi, nh\u00ecn chung hi\u1ec7u qu\u1ea3 s\u1ebd r\u00f5 r\u00e0ng h\u01a1n sau khi d\u00f9ng \u0111\u01b0\u1eddng u\u1ed1ng \u00edt nh\u1ea5t 3-6 th\u00e1ng.<\/p>\n
– Cu\u1ed1i c\u00f9ng, d\u00f9 vitamin C c\u00f3 t\u00e1c d\u1ee5ng l\u00e0m tr\u1eafng da nh\u01b0ng n\u1ebfu mu\u1ed1n da kh\u00f4ng b\u1ecb s\u1ea1m \u0111en, ngo\u00e0i vi\u1ec7c b\u1ed5 sung vitamin C, b\u1ea1n c\u0169ng c\u1ea7n ch\u1ed1ng n\u1eafng \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 \u1ee9c ch\u1ebf s\u1ea3n sinh h\u1eafc t\u1ed1 melanin.<\/p>\n
\n $\"D\u1ea5u$ <\/a>D\u1ea5u hi\u1ec7u da thi\u1ebfu vitamin C v\u00e0 c\u00e1ch b\u1ed5 sung<\/a><\/p>\n
SK\u0110S – Vitamin C l\u00e0 m\u1ed9t vi ch\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi c\u01a1 th\u1ec3. Khi thi\u1ebfu vitamin C, kh\u00f4ng ch\u1ec9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ed9t s\u1ed1 ch\u1ee9c n\u0103ng c\u1ee7a c\u01a1 th\u1ec3 m\u00e0 c\u00f2n c\u00f3 c\u00e1c bi\u1ec3u hi\u1ec7n x\u1ea5u \u1edf ngo\u00e0i da. V\u1eady da thi\u1ebfu vitamin C c\u00f3 d\u1ea5u hi\u1ec7u g\u00ec tr\u00ean da v\u00e0 n\u00ean b\u1ed5 sung nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n<\/div>\n
M\u1eddi xem th\u00eam video \u0111\u01b0\u1ee3c quan t\u00e2m:<\/b><\/p>\n
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U\u1ed1ng n\u01b0\u1edbc cam h\u00e0ng ng\u00e0y c\u00f3 t\u00e1c d\u1ee5ng g\u00ec? | SK\u0110S<\/p>\n<\/p><\/div>\n<\/div>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
1. Nguy\u00ean l\u00fd l\u00e0m tr\u1eafng da c\u1ee7a vitamin C Tr\u01b0\u1edbc h\u1ebft, c\u00f3 r\u1ea5t nhi\u1ec1u y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh l\u00e0n da c\u1ee7a ch\u00fang ta \u0111en hay tr\u1eafng nh\u01b0 di truy\u1ec1n, ti\u1ebfp x\u00fac v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi, n\u1ed3ng \u0111\u1ed9 hormone n\u1ed9i ti\u1ebft\u2026 Nh\u01b0ng nh\u00ecn chung, m\u00e0u da ch\u1ee7 y\u1ebfu ph\u1ee5 thu\u1ed9c v\u00e0o h\u00e0m l\u01b0\u1ee3ng melanin trong […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-920","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"http:\/\/ytevn.com\/index.php?rest_route=\/wp\/v2\/posts\/920","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/ytevn.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ytevn.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ytevn.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/ytevn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=920"}],"version-history":[{"count":0,"href":"http:\/\/ytevn.com\/index.php?rest_route=\/wp\/v2\/posts\/920\/revisions"}],"wp:attachment":[{"href":"http:\/\/ytevn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ytevn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=920"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ytevn.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}