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1. 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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   Recommended Intakes. Intake recommendations for vitamin A and other nutrients are provided in the Dietary Reference Intakes (DRIs) developed by the Food and Nutrition Board (FNB) at the National Academies of Sciences, Engineering, and Medicine . DRI is the general term for a set of reference values used for planning and assessing nutrient ...

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     Chętnie wyświetlilibyśmy opis, ale witryna, którą oglądasz,...

   • History of Changes to This Fact Sheet

     Chętnie wyświetlilibyśmy opis, ale witryna, którą oglądasz,...

   • Vitamin a and Carotenoids

     Vitamin A is found naturally in many foods and is added to...

   • Other Resources

     Cancer: High-Dose Vitamin C (health professional version)...

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     Importance: Oral supplementation with the Age-Related Eye...

   • Dietary Supplements

     Many adults and children in the United States take one or...

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     The Office of Dietary Supplements (ODS), part of the...

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     Vitamin D Standardization Program (VDSP) Symposium: Tools to...

2. 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:

3. 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 · One hard-boiled egg contains 75 micrograms (mcg), or 8% of the recommended daily amount for vitamin A. Eggs also contain the carotenoids lutein and zeaxanthin, which may help protect your vision.

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

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

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   The amount of vitamin A adults aged 19 to 64 need is: 700 µg a day for men. 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.

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

   www.healthline.com › nutrition › vitamin-a

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   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...

6. 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 to cause harmful effects on health.

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.