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 infection and toxins (also called free radicals) that cause inflammation and disease.

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 growth...

2024年4月11日 · Detailed Vitamin A dosage information for adults and children. Includes dosages for Vitamin/Mineral Supplementation and Vitamin A Deficiency; plus renal, liver and dialysis adjustments.

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 too much can be...

Vitamin A (retinol, retinoic acid) is a nutrient important to vision, growth, cell division, reproduction and immunity. Vitamin A also has antioxidant properties.

This medication is a multivitamin product used to treat or prevent vitamin deficiency due to poor diet, certain illnesses, or during pregnancy. Vitamins are important building blocks of the...

Vitamin A is the name of a group of fat-soluble retinoids, primarily retinol and retinyl esters [1, 2]. Vitamin A is involved in immune function, cellular communication, growth and development, and male and female reproduction [1-3].

2002年2月21日 · The upper limit of vitamin A set by the Food and Nutrition Board of the National Academy of Sciences is 10,000 IU per day. This limit refers to pre-formed Vitamin A, which can be found in foods and dietary supplements as palmitate, acetate or fish liver oil, all of which are derived from animal sources.

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Having an average of 1.5mg a day or less of vitamin A from diet and supplements combined is unlikely to cause any harm. Find out about what vitamin A (also known as retinol) does, how much you need, and good food sources of it.