{"id":8615,"date":"2025-02-22T17:10:59","date_gmt":"2025-02-22T10:10:59","guid":{"rendered":"https:\/\/drnguyengiap.com\/?p=8615"},"modified":"2025-02-22T17:10:59","modified_gmt":"2025-02-22T10:10:59","slug":"what-is-vitamin-a","status":"publish","type":"post","link":"https:\/\/drnguyengiap.com\/en\/vitamin-a-la-gi\/","title":{"rendered":"What is vitamin A?"},"content":{"rendered":"<p><b>What effect does vitamin A have on facial skin?<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Vitamin A is an essential nutrient that is often overlooked in our daily diet. We often hear about the role of vitamin A in protecting our eyes, but is that all? <\/span><\/p>\n<p><span style=\"font-weight: 400;\">In fact, it is an important vitamin involved in many biological functions in the body, from boosting the immune system, supporting bone growth, to beautifying the skin and maintaining overall health. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">So what are the effects of vitamin A and how to supplement it properly? This article by <a href=\"\/en\/\"><strong>Dr. Nguyen Giap Aesthetic Surgery Center<\/strong><\/a> will help you understand more about the type of this important vitamin.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-8618\" title=\"vitamin-a-la-gi\" src=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/vitamin-a-la-gi.webp\" alt=\"vitamin a la gi\" width=\"800\" height=\"800\" srcset=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/vitamin-a-la-gi.webp 800w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/vitamin-a-la-gi-300x300.webp 300w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/vitamin-a-la-gi-150x150.webp 150w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/vitamin-a-la-gi-768x768.webp 768w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/vitamin-a-la-gi-12x12.webp 12w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>&nbsp;<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Main Contents <\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Clinic Overview<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/drnguyengiap.com\/en\/vitamin-a-la-gi\/#Vitamin_A_va_vai_tro_quan_trong_doi_voi_suc_khoe\" >Vitamin A and its important role in health<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/drnguyengiap.com\/en\/vitamin-a-la-gi\/#Vitamin_A_co_tac_dung_gi\" >What is the effect of vitamin A?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/drnguyengiap.com\/en\/vitamin-a-la-gi\/#Bao_ve_thi_luc_va_suc_khoe_doi_mat\" >Protect eyesight and healthy eyes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/drnguyengiap.com\/en\/vitamin-a-la-gi\/#Tang_cuong_he_mien_dich\" >Boosts the Immune System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/drnguyengiap.com\/en\/vitamin-a-la-gi\/#Giup_da_khoe_manh_ngan_ngua_lao_hoa\" >Healthy skin, prevents aging<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/drnguyengiap.com\/en\/vitamin-a-la-gi\/#Ho_tro_su_phat_trien_cua_xuong_va_te_bao\" >Support the development of bones and cells<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/drnguyengiap.com\/en\/vitamin-a-la-gi\/#Nhung_thuc_pham_giau_vitamin_A_nen_bo_sung\" >Foods rich in vitamin A should be supplemented<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/drnguyengiap.com\/en\/vitamin-a-la-gi\/#Thuc_pham_co_nguon_goc_dong_vat\" >Food of animal origin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/drnguyengiap.com\/en\/vitamin-a-la-gi\/#Thuc_pham_co_nguon_goc_thuc_vat\" >Food of plant origin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/drnguyengiap.com\/en\/vitamin-a-la-gi\/#Dau_hieu_thieu_hut_va_tac_dung_phu_khi_bo_sung_qua_nhieu_vitamin_A\" >Signs of deficiency and side effects of taking too much vitamin A<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/drnguyengiap.com\/en\/vitamin-a-la-gi\/#Tom_Lai\" >Summary<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Vitamin_A_va_vai_tro_quan_trong_doi_voi_suc_khoe\"><\/span><b>Vitamin A and its important role in health<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Vitamin a is a kind of fat-soluble vitamins, exists in two main forms:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Retinol (vitamin A activity):<span style=\"font-weight: 400;\"> There are many in foods of animal origin such as liver, milk and eggs.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Carotenoids (provitamin A):<span style=\"font-weight: 400;\"> Be found in <a href=\"https:\/\/drnguyengiap.com\/en\/thuc-pham-co-nguon-goc-thuc-vat-cho-suc-khoe-da\/\">food of plant origin<\/a> such as carrots, pumpkin, green vegetables.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Our bodies can&#039;t synthesize vitamin A which need absorb through food. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">If deficiency of vitamin A, the body may encounter more serious problems, especially related to vision, immunity and the development of cells.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><a class=\"hotline-button\" href=\"tel:0909 886 054\"><strong>CONSULTING FACIAL SKIN CONDITION<\/strong> <\/a><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Vitamin_A_co_tac_dung_gi\"><\/span><b>What is the effect of vitamin A?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Bao_ve_thi_luc_va_suc_khoe_doi_mat\"><\/span><b>Protect eyesight and healthy eyes<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>One of the most important benefits of vitamin A is maintaining vision. Vitamin A deficiency can lead to night blindness, a condition in which the eyes cannot adapt to low light, impairing night vision.<\/p>\n<p>In addition, vitamin A also participates in protecting the cornea, preventing dry eyes, a common problem in people who regularly use electronic devices or work in polluted environments.<\/p>\n<p>Adding enough vitamin A to help reduce the risk of macular degeneration, a disease common in older people, can cause permanent vision loss.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tang_cuong_he_mien_dich\"><\/span><b>Boosts the Immune System<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Vitamin A plays an important role in protecting the body against the invasion of bacteria and viruses. This vitamin helps maintain the integrity of the mucosa, the body's natural protective barrier, and supports the production of white blood cells, thereby improving resistance.<\/p>\n<p>Many studies show children vitamin A deficiency are predisposed to infection, especially measles and prolonged diarrhea.<\/p>\n<p>The addition of vitamin A in the right way can help to recover quickly after infection and reduce the risk of serious complications.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Giup_da_khoe_manh_ngan_ngua_lao_hoa\"><\/span><b>Healthy skin, prevents aging<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Vitamin A is a powerful antioxidant, which helps protect the skin from the damaging effects of <\/span>free radicals, thereby slowing down the aging process. Some forms of vitamin A, such as retinol, is often used in cosmetics to treat acne, reduce wrinkles and <a href=\"https:\/\/drnguyengiap.com\/en\/how-to-skin-whitening-tips\/\">whitening<\/a>.<\/p>\n<p>In addition, vitamin A or <a href=\"https:\/\/drnguyengiap.com\/en\/what-is-vitamin-e\/\">vitamin E<\/a> also supports the process of cell regeneration<span style=\"font-weight: 400;\">helps skin stay fresh and smooth. Those who have dry skin, peeling, or irritation are often recommended vitamin A supplements, <a href=\"https:\/\/drnguyengiap.com\/en\/what-is-vitamin-f\/\">vitamin F<\/a> to improve skin health from the inside.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-8617 size-full\" title=\"vitamin-a-co-tac-dung-gi-for-da-mat\" src=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/vitamin-a-co-tac-dung-gi-cho-da-mat.webp\" alt=\"What effect does vitamin A have on facial skin?\" width=\"800\" height=\"800\" srcset=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/vitamin-a-co-tac-dung-gi-cho-da-mat.webp 800w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/vitamin-a-co-tac-dung-gi-cho-da-mat-300x300.webp 300w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/vitamin-a-co-tac-dung-gi-cho-da-mat-150x150.webp 150w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/vitamin-a-co-tac-dung-gi-cho-da-mat-768x768.webp 768w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/vitamin-a-co-tac-dung-gi-cho-da-mat-12x12.webp 12w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ho_tro_su_phat_trien_cua_xuong_va_te_bao\"><\/span><b>Support the development of bones and cells<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Not only helps eyes bright, beautiful skin, vitamin A also plays an important role in the development of <\/span>bones and cells.<\/p>\n<p>In children, the lack of vitamin A can lead to the slow development or osteoporosis early adulthood.<\/p>\n<p>Besides, vitamin A is involved in the process of creating red blood cells, helps improve the process of oxygen transport in the blood.<\/p>\n<p>This is very important for overall health, especially in people with regular physical activity or risk of anemia.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Nhung_thuc_pham_giau_vitamin_A_nen_bo_sung\"><\/span><b>Foods rich in vitamin A should be supplemented<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Vitamin A can be found in all foods of animal origin and plant.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-8619\" title=\"velvet-thuc-pham-giau-vitamin-a-so-bo-sung\" src=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/nhung-thuc-pham-giau-vitamin-a-nen-bo-sung.webp\" alt=\"nhung thuc pham giau vitamin a nen bo sung\" width=\"800\" height=\"800\" srcset=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/nhung-thuc-pham-giau-vitamin-a-nen-bo-sung.webp 800w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/nhung-thuc-pham-giau-vitamin-a-nen-bo-sung-300x300.webp 300w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/nhung-thuc-pham-giau-vitamin-a-nen-bo-sung-150x150.webp 150w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/nhung-thuc-pham-giau-vitamin-a-nen-bo-sung-768x768.webp 768w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/nhung-thuc-pham-giau-vitamin-a-nen-bo-sung-12x12.webp 12w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">The addition of vitamin A-rich foods in the daily diet helps the body to absorb nutrients naturally and effectively.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thuc_pham_co_nguon_goc_dong_vat\"><\/span><strong>Food of animal origin<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The food from animals contain vitamin A as retinol, a form of direct operation, which helps the body absorb quickly:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Animal liver (beef liver, chicken liver, pork liver)<span style=\"font-weight: 400;\">: Is the supply of natural vitamin A is most abundant. Just a small portion of the liver can also fully meet the needs of vitamin A daily. However, one should not eat liver too often to avoid the risk of excess vitamin A.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Milk and dairy products (fresh milk, yogurt, cheese)<span style=\"font-weight: 400;\">: In addition to vitamin A, the products from milk offer calcium and vitamin D supports healthy bones.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Eggs (especially egg yolks)<span style=\"font-weight: 400;\">: Contains significant amounts of vitamin A along with protein, which helps maintain healthy skin and strengthen eyesight.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Fatty fish (salmon, tuna, sardines, herring)<span style=\"font-weight: 400;\">: Not only contains vitamins A, what kind of fish is also rich in omega-3, helps improve cardiovascular health and brain.<\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Thuc_pham_co_nguon_goc_thuc_vat\"><\/span><b>Food of plant origin<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Vitamin A in plants exists in the form of beta-carotene \u2013 a precursor of vitamin A, should be metabolized in the body before you can use:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Carrots<span style=\"font-weight: 400;\">: Known as the supply of beta-carotene is most abundant. A carrot can meet the large demand of vitamin A daily.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Sweet potato, pumpkin<span style=\"font-weight: 400;\">: Contain large amounts of beta-carotene and antioxidants, help protect skin and strengthen the immune system.<\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-8616\" title=\"thuc-pham-co-nguon-goc-thuc-tits\" src=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/thuc-pham-co-nguon-goc-thuc-vat.webp\" alt=\"thuc pham co nguon goc thuc vat\" width=\"800\" height=\"800\" srcset=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/thuc-pham-co-nguon-goc-thuc-vat.webp 800w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/thuc-pham-co-nguon-goc-thuc-vat-300x300.webp 300w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/thuc-pham-co-nguon-goc-thuc-vat-150x150.webp 150w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/thuc-pham-co-nguon-goc-thuc-vat-768x768.webp 768w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/thuc-pham-co-nguon-goc-thuc-vat-12x12.webp 12w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Dark green vegetables (spinach, kale, green vegetable, spinach, broccoli)<span style=\"font-weight: 400;\">: Provides not only beta-carotene but also rich in fiber, vitamin C and minerals that are beneficial for overall health.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Fruits rich in vitamin A (papaya, mango, melon, momordica)<span style=\"font-weight: 400;\">: This is the supply of beta-carotene natural support eye health and the skin.<\/span><\/li>\n<\/ul>\n<p>\ud83d\udc49 Tip to absorb vitamin A, efficiency: Because vitamin A is fat-soluble, so to the body absorb better, you should combine these foods with healthy fats such as olive oil, coconut oil, butter or nuts.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Dau_hieu_thieu_hut_va_tac_dung_phu_khi_bo_sung_qua_nhieu_vitamin_A\"><\/span><b>Signs of deficiency and side effects of taking too much vitamin A<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Maintain the level of vitamin A balance is essential to ensure health. The deficiency or excess of vitamin A can lead to serious consequences.<\/span><\/p>\n<p><b>Signs of deficiency of vitamin A<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Vitamin A deficiency can affect many functions in the body, especially vision, skin and immune system. The common signs include:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Visual problems<span style=\"font-weight: 400;\">: Eyes dry, prone to irritation, night blindness (hard to see in the dark). If severe deficiency can lead to corneal damage, even cause blindness.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Dry skin, brittle hair, hair loss, weak nails<span style=\"font-weight: 400;\">: Vitamin A plays an important role in the maintenance of healthy skin, when the deficiency, the skin can become grainy, peeling, brittle hair, hair loss.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Deterioration of the immune system<span style=\"font-weight: 400;\">: The body susceptible to infections, especially infections of the respiratory tract and gastrointestinal tract. Children vitamin A deficiency are at risk for measles, diarrhea and pneumonia are higher.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Retardation in young children<span style=\"font-weight: 400;\">: Vitamin A is necessary for the normal development of the body. Deficiency can affect the physical development and intelligence in children.<\/span><\/li>\n<\/ul>\n<p><b>Side effects when additional overdose of vitamin A<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Although vitamin A is very important, but if the supplement too much, especially from sources such synthetic pill, can lead to a state of intoxication:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Poisoning of vitamin A, acute<span style=\"font-weight: 400;\">: Occurs when the consumption of vitamin A too big in short time. The symptoms include nausea, dizziness, headache, loss of consciousness.<\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-8620\" title=\"tac-dung-is-when-bo-sung-vitamin-a\" src=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/tac-dung-phu-khi-bo-sung-vitamin-a.webp\" alt=\"tac dung phu when bo sung vitamin a\" width=\"800\" height=\"800\" srcset=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/tac-dung-phu-khi-bo-sung-vitamin-a.webp 800w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/tac-dung-phu-khi-bo-sung-vitamin-a-300x300.webp 300w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/tac-dung-phu-khi-bo-sung-vitamin-a-150x150.webp 150w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/tac-dung-phu-khi-bo-sung-vitamin-a-768x768.webp 768w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2025\/02\/tac-dung-phu-khi-bo-sung-vitamin-a-12x12.webp 12w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Accumulation in the liver<span style=\"font-weight: 400;\">: Vitamin A excess are not excreted but accumulate in the liver, causing liver damage, increases the risk of cirrhosis of the liver.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Osteoporosis and brittle bones<span style=\"font-weight: 400;\">: The addition of vitamin A excess can reduce bone density, leading to the risk of osteoporosis and fractures is higher, especially in the elderly.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Causes birth defects<span style=\"font-weight: 400;\">Pregnant women need to be especially careful with vitamin A, because high doses can cause birth defects in the fetus. Experts recommend that pregnant women should not take vitamin A pills but should supplement it from natural foods.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\ud83d\udc49 <\/span><b>Tips:<\/b><span style=\"font-weight: 400;\"> To be safe, vitamin A supplements should be taken in the recommended dosage by a nutritionist or doctor. For adults, the average daily requirement of vitamin A is:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Men:<\/b><span style=\"font-weight: 400;\"> 900 mcg<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Female:<\/b><span style=\"font-weight: 400;\"> 700 mcg<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Children:<\/b><span style=\"font-weight: 400;\"> 300 \u2013 600 mcg (depending on age)<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Tom_Lai\"><\/span><b>Summary<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Vitamin A plays an extremely important role in human health, from protecting the eyes, boosting immunity, supporting bone development, to <a href=\"https:\/\/drnguyengiap.com\/en\/the-best-health-drinks-for-women-over-30-years-old\/\">beauty skin<\/a>. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Maintaining a diet rich in vitamin A from natural food will help you get a healthy body without worrying about side effects due to additional excessive.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Let&#039;s listen to the body, vitamin A supplements the right way to enjoy a healthy life and full of energy!<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>When you are in need of upgrades beauty, aesthetic surgery, please <a href=\"https:\/\/drnguyengiap.com\/en\/contact\/\">Feel free to contact<\/a>\u00a0right here:<\/p>\n<p><strong>Video review methods facelift hold the \u201ccolors of spring\u201d at Dr Nguyen Giap<\/strong><br \/>\n<iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Z3PUplOeXj4?si=2Mdqe_QDE3cGPByK&amp;controls=0&amp;start=156\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><br \/>\nPROCEDURES PROCESS AT DR. NGUYEN GIAP AESTHETIC SURGERY CENTER<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5397\" src=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2023\/12\/chinh-xuong-11.jpg.webp\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/drnguyengiap.com\/wp-content\/uploads\/2023\/12\/chinh-xuong-11.jpg.webp 800w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2023\/12\/chinh-xuong-11-300x300.jpg.webp 300w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2023\/12\/chinh-xuong-11-150x150.jpg.webp 150w, https:\/\/drnguyengiap.com\/wp-content\/uploads\/2023\/12\/chinh-xuong-11-768x768.jpg.webp 768w\" alt=\"Quy trinh lam viec tai doctor, Dr Nguyen Giap\" width=\"800\" height=\"800\" \/><\/p>\n<div>DR. NGUYEN GIAP AESTHETIC SURGERY CENTER<\/div>\n<ul>\n<li>Hotline: 0909 886 054<\/li>\n<li>Map:\u00a0<a href=\"https:\/\/g.co\/kgs\/iuwZLSV\" target=\"_blank\" rel=\"nofollow noopener\">https:\/\/g.co\/kgs\/iuwZLSV<\/a><\/li>\n<li>Aesthetic Association: :\/\/www.hoithammy.org\/index.php?m=tieu-chuan-1&amp;id=1532<\/li>\n<li>What clinic:\u00a0https:\/\/www.whatclinic.com\/cosmetic-plastic-surgery\/vietnam\/ho-chi-minh-city\/phu-nhuan-district-ho-chi-minh\/dr-nguyen-giap-aesthetic-surgery-center<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Vitamin A c\u00f3 t\u00e1c d\u1ee5ng g\u00ec cho da m\u1eb7t Vitamin A m\u1ed9t d\u01b0\u1ee1ng ch\u1ea5t thi\u1ebft y\u1ebfu nh\u01b0ng th\u01b0\u1eddng b\u1ecb xem nh\u1eb9 trong ch\u1ebf \u0111\u1ed9 \u0103n u\u1ed1ng h\u00e0ng ng\u00e0y. Ch\u00fang ta v\u1eabn th\u01b0\u1eddng nghe n\u00f3i v\u1ec1 vai tr\u00f2 c\u1ee7a vitamin A trong vi\u1ec7c b\u1ea3o v\u1ec7 m\u1eaft, nh\u01b0ng li\u1ec7u ch\u1ec9 c\u00f3 v\u1eady? Th\u1ef1c t\u1ebf, \u0111\u00e2y l\u00e0 m\u1ed9t<\/p>","protected":false},"author":5,"featured_media":8616,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-8615","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kien-thuc-chuyen-mon"],"_links":{"self":[{"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/posts\/8615","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/comments?post=8615"}],"version-history":[{"count":1,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/posts\/8615\/revisions"}],"predecessor-version":[{"id":8621,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/posts\/8615\/revisions\/8621"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/media\/8616"}],"wp:attachment":[{"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/media?parent=8615"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/categories?post=8615"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/drnguyengiap.com\/en\/wp-json\/wp\/v2\/tags?post=8615"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}