{"id":12631,"date":"2022-05-19T05:15:39","date_gmt":"2022-05-19T10:15:39","guid":{"rendered":"https:\/\/gncholdings.wpengine.com\/learn\/beauty\/the-abcs-of-letter-vitamins\/"},"modified":"2024-05-06T11:46:59","modified_gmt":"2024-05-06T16:46:59","slug":"what-are-the-letter-vitamins","status":"publish","type":"post","link":"https:\/\/www.gnc.com\/learn\/vitamins-minerals\/letter-vitamins\/what-are-the-letter-vitamins.html","title":{"rendered":"The ABCs of Letter Vitamins"},"content":{"rendered":"<p>There are tons of dietary supplements available to support your goals, but not one of them can beat the importance of the basics. If you need a refresher on how letter vitamins support your wellbeing, we\u2019ve got you covered right here.<\/p>\n<div class=\"lp-listicle\">\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"\" src=\"https:\/\/gnc.com\/learn\/wp-content\/uploads\/2022\/12\/article_vit_A.jpg\" alt=\"\" width=\"300\" height=\"300\" \/><\/p>\n<div>\n<h2>Vitamin A<\/h2>\n<p>This vitamin is well known for its role in eye health and vision, but it\u2019s got a lot more going for it than that. In fact, it\u2019s sort of a jack of all trades. It plays a role in gene expression and immune response. It also supports the maintenance of the protective lining of certain body tissues. Additionally, it assists in the formation and maintenance of bones and teeth. <a href=\"\/vitamins-a-z\/vitamin-a\/\">Vitamin A supplements<\/a> also support\u00a0the renewal of skin cells, promoting normal, healthy skin appearance and texture.<\/p>\n<\/div>\n<\/div>\n<div class=\"lp-listicle\">\n<p><img decoding=\"async\" class=\"\" src=\"https:\/\/gnc.com\/learn\/wp-content\/uploads\/2022\/12\/article_vit_B.jpg\" alt=\"\" width=\"301\" height=\"301\" \/><\/p>\n<div>\n<h2>Vitamin B<\/h2>\n<p>Unlike the other letter vitamins, there\u2019s more than just one B vitamin. In fact, there are eight in total: thiamin, riboflavin, niacin, folate, B-6, B-12, biotin and pantothenic acid. While each of the <a href=\"\/vitamins-a-z\/vitamin-b\/\">B vitamin\u00a0supplements<\/a> has its own function, they often work in conjunction with one another. The B vitamins facilitate the work of every cell\u2014some help generate energy, while others help make protein and new cells. Think of B vitamins as helpers: the carbohydrates, protein and fat we eat provide the fuel, while B vitamins help us turn that fuel into energy.<\/p>\n<\/div>\n<\/div>\n<div class=\"lp-listicle\">\n<p><img decoding=\"async\" class=\"\" src=\"https:\/\/gnc.com\/learn\/wp-content\/uploads\/2022\/12\/article_vit_C.jpg\" alt=\"\" width=\"299\" height=\"299\" \/><\/p>\n<div>\n<h2>Vitamin C<\/h2>\n<p>This letter vitamin performs a variety of functions in the body, but it is best known for its work as a protective antioxidant. For example, the cells of the immune system require <a href=\"\/vitamins-a-z\/vitamin-c\/\">vitamin C supplements<\/a> to protect themselves from free radicals produced by fighting off pathogens. In addition to its work as an antioxidant, vitamin C is involved in the synthesis of collagen and is required for collagen formation. You may also see vitamin C listed as ascorbic acid.<\/p>\n<\/div>\n<\/div>\n<div class=\"lp-listicle\">\n<p><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/gnc.com\/learn\/wp-content\/uploads\/2022\/12\/article_vit_D.jpg\" alt=\"\" width=\"300\" height=\"300\" \/><\/p>\n<div>\n<h2>Vitamin D<\/h2>\n<p>You might know this as one of the key vitamins found in vitamin D-fortified milk. The essential role that vitamin D plays in bone health is well established, and emerging research now suggests that it\u2019s important to cellular health, too. <a href=\"\/vitamins-a-z\/vitamin-d\/\">Vitamin D supplement<\/a> is unique in that it functions both as a vitamin and as a hormone. One of its essential roles is maintaining blood calcium and phosphorus levels within a healthy range, which it does by enhancing the small intestine\u2019s efficiency in absorbing them. A vitamin D deficiency can leave the body unable to properly regulate calcium and phosphorus levels. Vitamin D isn\u2019t found in many foods, so daily supplementation may provide the dietary support to help maintain adequate levels.<\/p>\n<\/div>\n<\/div>\n<div class=\"lp-listicle\">\n<p><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/gnc.com\/learn\/wp-content\/uploads\/2022\/12\/article_vit_E.jpg\" alt=\"\" width=\"300\" height=\"300\" \/><\/p>\n<div>\n<h2>Vitamin E<\/h2>\n<p>Vitamin E is the major fat-soluble antioxidant in the body and functions as a bodyguard\u2014 working to protect cellular membranes from the harmful effects of free radicals. Red blood cells rely on vitamin E in order to function, and the nervous system relies on vitamin E to maintain its health. In fact, the function of many body systems is supported by daily <a href=\"\/vitamins-a-z\/vitamin-e\/\">supplementation of vitamin E<\/a>, including the heart, lungs, prostate and digestive tract.<\/p>\n<\/div>\n<\/div>\n<div class=\"lp-listicle\">\n<p><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/gnc.com\/learn\/wp-content\/uploads\/2022\/12\/article_vit_K.jpg\" alt=\"\" width=\"300\" height=\"300\" \/><\/p>\n<div>\n<h2>Vitamin K<\/h2>\n<p>If you\u2019ve ever watched a cut stop bleeding, you\u2019ve watched vitamin K in action. The main function of this vitamin is to help make the proteins that allow blood to clot, preventing excessive bleeding. <a href=\"\/vitamins-a-z\/vitamin-k\/\">Vitamin K supplement<\/a> is also an essential nutrient involved in bone health. It\u2019s necessary in the production of key bone proteins and supports the bone-building process. Research indicates that an age-related decline in Vitamin K is related to reduced bone density. Vitamin K supplements may also improve bone mass in postmenopausal women.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Letter vitamins are often overlooked but each plays an important role in your health. Learn more about vitamin A, vitamin B, vitamin C, vitamin D, vitamin E, and vitamin K.<\/p>\n","protected":false},"author":27,"featured_media":14404,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[2190,2188],"tags":[1854,1855,1541],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The ABCs of Letter Vitamins | GNC<\/title>\n<meta name=\"description\" content=\"There are tons of vitamin supplements available to support your goals, but not one of them can beat the importance of the basics. 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