Vitamin A: What It Is and How Much You Need - Cleveland Clinic …
2022年11月9日 · Vitamin A strengthens your immune system by supporting white blood cells and the mucus membranes in your lungs, intestines and urinary tract. This helps you ward off …
VITAMIN A - Uses, Side Effects, and More - WebMD
Vitamin A is a fat -soluble vitamin. Its different forms are often called "retinoids." They include retinol, retinal, retinoic acid, and retinyl ester. Vitamin A is needed for the proper...
Vitamin A - Wikipedia
Vitamin A is a fat-soluble vitamin that is an essential nutrient. The term "vitamin A" encompasses a group of chemically related organic compounds that includes retinol, retinyl esters, and …
Vitamin A - Mayo Clinic
Vitamin A (retinol, retinoic acid) is a nutrient important to vision, growth, cell division, reproduction and immunity. Vitamin A also has antioxidant properties.
20 Foods That Are High in Vitamin A - Healthline
2024年4月1日 · This article lists 20 animal and plant foods rich in sources of vitamin A (retinol), including preformed vitamin A and provitamin A carotenoids, such as beta-carotene, which …
Vitamin A: Benefits, Deficiency, Toxicity, and More - Healthline
2023年4月24日 · Vitamin A is an important fat-soluble vitamin that supports your immune system, vision, reproductive health, and fetal growth. Even though it’s essential to get enough, taking …
维生素A - 百度百科
维生素A是一种 脂溶性维生素，有机化合物，化学式是C20H30O，对热、酸、碱稳定，易被氧化，紫外线可促进其氧化破坏。 维生素A包括A1及A2，A1即 视黄醇。 维生素A2即3-脱氢视黄 …
Vitamin A Uses, Side Effects & Warnings - Drugs.com
2024年4月11日 · Vitamin A is a fat-soluble vitamin that is absorbed with fats in your diet and stored in your body's fatty tissue. Vitamin A is used to treat vitamin A deficiency. Vitamin A is …
Vitamin A and Carotenoids - Consumer - Office of Dietary …
Vitamin A is a fat-soluble vitamin that is naturally present in many foods. Vitamin A is important for normal vision, the immune system, reproduction, and growth and development. Vitamin A also …
維生素 A - Hello 醫師
2024年4月11日 · 維生素 A 可用來治療維生素 A 缺乏和用來減低某些疾病的併發症，例如：瘧疾、 HIV 、 麻疹 、以及維生素A 缺乏的兒童的下痢狀況。 維生素 A 也可以用來治療嚴重的經期症 …