Nh\u01b0 1 th\u00f3i quen, h\u1ec5 tr\u1ebb con b\u1ecb s\u1ed1t, ho, s\u1ed5 m\u0169i… t\u1eeb ph\u1ee5 huynh, t\u1edbi d\u01b0\u1ee3c s\u0129, b\u00e1c s\u0129 \u0111\u1ec1u vung tay mua\/b\u00e1n\/k\u00ea vitamin C v\u00e0 k\u1ebdm cho tr\u1ebb. Th\u1ef1c s\u1ef1 c\u00f3 c\u1ea7n thi\u1ebft?<\/p>\n
Ch\u00fang t\u00f4i kh\u00f4ng g\u1ee3i \u00fd vi\u1ec7c s\u1eed d\u1ee5ng vitamin C trong \u0111i\u1ec1u tr\u1ecb c\u1ea3m l\u1ea1nh th\u01b0\u1eddng \u1edf tr\u1ebb em. M\u1ed9t th\u1eed nghi\u1ec7m ng\u1eabu nhi\u00ean n\u0103m 2013, b\u1ed5 sung vitamin C li\u1ec1u >= 200 mg\/ng\u00e0y ngay sau khi kh\u1edfi ph\u00e1t c\u00e1c tri\u1ec7u ch\u1ee9ng b\u1ec7nh \u0111\u00e3 kh\u00f4ng l\u00e0m gi\u1ea3m \u0111\u01b0\u1ee3c th\u1eddi gian bi\u1ec3u hi\u1ec7n b\u1ec7nh (c\u00f3 7 th\u1eed nghi\u1ec7m, v\u1edbi 3249 \u0111\u1ee3t c\u1ea3m l\u1ea1nh) c\u0169ng nh\u01b0 \u0111\u1ed9 n\u1eb7ng c\u1ee7a c\u00e1c tri\u1ec7u ch\u1ee9ng (c\u00f3 4 th\u1eed nghi\u1ec7m v\u1edbi 2708 \u0111\u1ee3t c\u1ea3m). Tuy nhi\u00ean kh\u00f4ng c\u00f3 t\u00e1c d\u1ee5ng ph\u1ee5 nghi\u00eam tr\u1ecdng n\u00e0o c\u1ee7a vitamin C \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o.[1]\n
Ch\u00fang t\u00f4i kh\u00f4ng g\u1ee3i \u00fd vi\u1ec7c s\u1eed d\u1ee5ng k\u1ebdm trong \u0111i\u1ec1u tr\u1ecb c\u1ea3m l\u1ea1nh th\u01b0\u1eddng \u1edf tr\u1ebb em. Hi\u1ec7u qu\u1ea3 c\u1ee7a k\u1ebdm trong vi\u1ec7c l\u00e0m gi\u1ea3m th\u1eddi gian hay \u0111\u1ed9 n\u1eb7ng c\u1ee7a c\u00e1c tri\u1ec7u ch\u1ee9ng \u1edf tr\u1ebb em l\u00e0 kh\u00f4ng r\u00f5 r\u00e0ng, v\u00e0 c\u00e1c t\u00e1c d\u1ee5ng ph\u1ee5 c\u1ee7a n\u00f3 l\u1ea1i kh\u00e1 ph\u1ed5 bi\u1ebfn [2]\n
M\u1eb7c d\u00f9 c\u00f3 1 v\u00e0i th\u1eed nghi\u1ec7m ng\u1eabu nhi\u00ean c\u00f3 h\u1ec7 th\u1ed1ng g\u1ee3i \u00fd r\u1eb1ng k\u1ebdm c\u00f3 th\u1ec3 r\u00fat ng\u1eafn th\u1eddi gian c\u1ee7a c\u00e1c tri\u1ec7u ch\u1ee9ng nh\u01b0ng l\u1ea1i c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 gi\u1eefa c\u00e1c th\u1eed nghi\u1ec7m n\u00e0y. [2,3] V\u00e0o n\u0103m 2012 m\u1ed9t t\u1ed5ng quan h\u1ec7 th\u1ed1ng v\u00e0 ph\u00e2n t\u00edch t\u1eeb 8 th\u1eed nghi\u1ec7m (c\u00f3 934 ng\u01b0\u1eddi tham gia, trong \u0111\u00f3 c\u00f3 371 ng\u01b0\u1eddi l\u1edbn v\u00e0 563 tr\u1ebb em), k\u1ebdm \u0111\u00e3 l\u00e0m gi\u1ea3m \u0111\u01b0\u1ee3c th\u1eddi gian bi\u1ec3u hi\u1ec7n tri\u1ec7u ch\u1ee9ng (1,65 ng\u00e0y) [ 2]. Khi ph\u00e2n t\u00edch trong t\u1eebng nh\u00f3m th\u00ec th\u1ea5y k\u1ebdm l\u00e0m gi\u1ea3m \u0111\u01b0\u1ee3c th\u1eddi gian bi\u1ec3u hi\u1ec7n tri\u1ec7u ch\u1ee9ng \u1edf ng\u01b0\u1eddi l\u1edbn (trung b\u00ecnh 2,63 ng\u00e0y) nh\u01b0ng \u1edf nh\u00f3m tr\u1ebb em th\u00ec kh\u00f4ng (ch\u1ec9 kh\u00e1c bi\u1ec7t 0,26 ng\u00e0y ). T\u00e1c d\u1ee5ng c\u1ee7a k\u1ebdm c\u00f2n thay \u0111\u1ed5i t\u00f9y theo c\u00f4ng th\u1ee9c c\u1ee7a k\u1ebdm v\u00e0 li\u1ec1u c\u1ee7a ion k\u1ebdm (k\u1ebdm acetate th\u00ec c\u00f3 hi\u1ec7u qu\u1ea3, k\u1ebdm gluconate v\u00e0 k\u1ebdm sulfate th\u00ec kh\u00f4ng c\u00f3 hi\u1ec7u qu\u1ea3), li\u1ec1u l\u00e0 tr\u00ean 75 mg th\u00ec hi\u1ec7u qu\u1ea3 h\u01a1n li\u1ec1u th\u1ea5p h\u01a1n).<\/p>\n
C\u00e1c t\u00e1c d\u1ee5ng ph\u1ee5 bao g\u1ed3m:<\/p>\n
C\u00e1c t\u00e1c d\u1ee5ng ph\u1ee5 n\u00e0y ph\u1ed5 bi\u1ebfn , g\u00f3p ph\u1ea7n l\u00e0m k\u1ebdm tr\u1edf n\u00ean kh\u00f3 s\u1eed d\u1ee5ng \u1edf tr\u1ebb em [2, 4]\n
C\u00e1c ch\u1ebf ph\u1ea9m k\u1ebdm d\u00f9ng t\u1ea1i m\u0169i bao g\u1ed3m vi l\u01b0\u1ee3ng \u0111\u1ed3ng c\u0103n nh\u1ecf v\u00e0o m\u0169i (k\u1ebdm gluconate) c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m l\u00e2u d\u00e0i th\u1eadm ch\u00ed m\u1ea5t h\u1eb3n kh\u1ea3 n\u0103ng ng\u1eedi. Do \u0111\u00f3 kh\u00f4ng khuy\u1ebfn c\u00e1o cho tr\u1ebb em<\/p>\n
\u0110\u00e2y l\u00e0 1 lo\u1ea1i c\u00e2y c\u00f3 hoa thu\u1ed9c h\u1ecd h\u01b0\u1edbng d\u01b0\u01a1ng ph\u1ed5 bi\u1ebfn \u1edf b\u1eafc M\u1ef9 , c\u00f3 th\u1ec3 c\u00f3 \u1edf ch\u00e2u \u00c1 , Canada…<\/p>\n
Ch\u00fang t\u00f4i kh\u00f4ng g\u1ee3i \u00fd s\u1eed d\u1ee5ng Echinacea purpurea trong \u0111i\u1ec1u tr\u1ecb c\u1ea3m l\u1ea1nh th\u01b0\u1eddng \u1edf tr\u1ebb em. M\u1ed9t v\u00e0i th\u1eed nghi\u1ec7m ng\u1eabu nhi\u00ean \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nghi\u00eam ng\u1eb7t v\u00e0 m\u1ed9t ph\u00e2n t\u00edch t\u1ed5ng h\u1ee3p c\u00e1c th\u1eed nghi\u1ec7m ng\u1eabu nhi\u00ean \u1edf ng\u01b0\u1eddi l\u1edbn th\u1ea5y r\u1eb1ng echinacea kh\u00f4ng hi\u1ec7u qu\u1ea3 h\u01a1n so v\u1edbi gi\u1ea3 d\u01b0\u1ee3c trong \u0111i\u1ec1u tr\u1ecb c\u00e1c b\u1ec7nh nhi\u1ec5m tr\u00f9ng \u0111\u01b0\u1eddng h\u00f4 h\u1ea5p tr\u00ean (URI)<\/p>\n
T\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady, 1 th\u1eed nghi\u1ec7m ng\u1eabu nhi\u1ec5n \u1edf tr\u1ebb em (t\u1eeb 2- 11 tu\u1ed5i) kh\u00f4ng th\u1ea5y \u0111\u01b0\u1ee3c s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111\u1ed9 d\u00e0i c\u0169ng nh\u01b0 \u0111\u1ed9 n\u1eb7ng c\u1ee7a c\u1ee7a c\u00e1c tri\u1ec7u ch\u1ee9ng VI\u00caM H\u00d4 H\u1ea4P TR\u00caN<\/strong> khi \u0111i\u1ec1u tr\u1ecb b\u1eb1ng lo\u00e0i th\u1ea3o d\u01b0\u1ee3c n\u00e0y so v\u1edbi gi\u1ea3 d\u01b0\u1ee3c.<\/p>\n Ng\u01b0\u1ee3c l\u1ea1i tr\u1ebb con khi d\u00f9ng th\u1ea3o d\u01b0\u1ee3c n\u00e0y c\u00f3 gia t\u0103ng s\u1ef1 xu\u1ea5t hi\u1ec7n ban (2,7%)<\/p>\nT\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n