The 8 Best Vitamin A Supplements - Healthline
2022年6月9日 · Vitamin A supplements may be a good idea for you if you have a vitamin A deficiency or are looking to boost your antioxidant intake or eye health. Here are the 8 best vitamin A...
Vitamin A - Mayo Clinic
People who have low levels of vitamin A appear to benefit most from vitamin A supplements. This kind of deficiency isn't common in the United States. Vitamin A deficiency causes anemia and dry eyes.
VITAMIN A - Uses, Side Effects, and More - WebMD
In supplements, vitamin A is available in two forms: pre-formed vitamin A (retinol or retinyl ester) and provitamin A (carotenoids).
6 best vitamin A supplements: Safety, dosage, and more
2022年7月29日 · Vitamin A is a fat-soluble vitamin that helps support vision, skin, and immune health. According to the Office of Dietary Supplements (ODS), there are two types of vitamin A: Preformed...
Vitamin A: What It Is and How Much You Need - Cleveland Clinic …
2022年11月9日 · Most multivitamin-mineral supplements also contain vitamin A. But in most cases, you don’t need to take supplements if you’re getting enough of what you need from food.
Vitamin A (Retinoid) Benefits for Vision and Health - WebMD
2023年12月20日 · Vitamin A is key for good vision, a healthy immune system, and cell growth. Learn about the active form of vitamin A -- retinoids -- that come from animals.
Vitamin A: Everything You Need To Know - Verywell Health
2024年8月25日 · There are two sources of vitamin A: preformed vitamin A and carotenoids. It's a fat-soluble nutrient, meaning it needs fat to be effectively absorbed in the digestive tract. In the United States, the Food and Drug Administration (FDA) does not regulate supplements the way it regulates prescription drugs.
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 too much can be...
6 Health Benefits of Vitamin A, Backed by Science
2023年5月7日 · Nutrition. 6 Health Benefits of Vitamin A, Backed by Science. Vitamin A is essential for many processes in your body, including maintaining healthy vision, ensuring the normal function of...
Vitamin A and Carotenoids - Consumer - Office of Dietary Supplements …
The most common provitamin A carotenoid in foods and dietary supplements is beta-carotene. How much vitamin A do I need? The amount of vitamin A you need depends on your age and sex. Average daily recommended amounts of preformed vitamin A and provitamin A carotenoids are listed below in micrograms (mcg) of retinol activity equivalents (RAE).