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1. www.mayoclinic.org › drugs-supplements-vitamin-a › art-20365945Vitamin A - Mayo Clinic

   www.mayoclinic.org › drugs-supplements-vitamin-a › art-20365945

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   The recommended daily amount of vitamin A is 900 micrograms (mcg) for adult men and 700 mcg for adult women. What the research says. Research on oral vitamin A for specific conditions shows: Acne. Large doses of oral vitamin A supplements don't appear to affect acne. Age-related macular degeneration.

2. www.nhs.uk › conditions › vitamins-and-mineralsVitamins and minerals - Vitamin A - NHS

   www.nhs.uk › conditions › vitamins-and-minerals

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   600 µg a day for women. You should be able to get all the vitamin A you need from your diet. Any vitamin A your body does not need immediately is stored for future use. This means you do not need it every day.

3. ods.od.nih.gov › factsheets › VitaminA-HealthProfessionalVitamin A and Carotenoids - Health Professional Fact Sheet

   ods.od.nih.gov › factsheets › VitaminA-HealthProfessional

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   Average daily intakes of vitamin A from foods and beverages in the United States were 682 mcg RAE for men age 20 and older and 616 mcg RAE for women in 2017–2018, according to the National Health and Nutrition Examination Survey (NHANES) . For children age 2–19, mean daily intakes of vitamin A from foods and beverages ranged from 497 to 680 ...

4. health.clevelandclinic.org › vitamin-aVitamin A: What It Is and How Much You Need - Cleveland Clinic...

   health.clevelandclinic.org › vitamin-a

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   9 lis 2022 · Adequate amounts of vitamin A in your diet are essential for healthy reproductive function. Vitamin A deficiency can lead to infertility and cause delayed growth and development in children. But ...

5. nutritionsource.hsph.harvard.edu › vitaminVitamin A - The Nutrition Source

   nutritionsource.hsph.harvard.edu › vitamin

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   RDA: The Recommended Dietary Allowance for adults 19 years and older is 900 mcg RAE for men (equivalent to 3,000 IU) and 700 mcg RAE for women (equivalent to 2,333 IU). UL: The Tolerable Upper Intake Level is the maximum daily intake unlikely

6. www.healthline.com › nutrition › vitamin-aVitamin A: Benefits, Deficiency, Toxicity, and More - Healthline

   www.healthline.com › nutrition › vitamin-a

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   24 kwi 2023 · Summary. Vitamin A is needed for eye health, vision, immune function, cell growth, reproduction, and fetal development. Health benefits. Vitamin A is an important nutrient...

7. www.ncbi.nlm.nih.gov › books › NBK222318Vitamin A - Dietary Reference Intakes for Vitamin A, Vitamin K,...

   www.ncbi.nlm.nih.gov › books › NBK222318

   The median intake of vitamin A ranges from 744 to 811 μg RAE/ day for men and 530 to 716 μg RAE/day for women. Using μg RAE, approximately 26 and 34 percent of vitamin A activity consumed by men and women, respectively, is provided from provitamin A carotenoids.