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  1. Vitamin A - Uses, Side Effects, And More - WebMD

    Learn more about VITAMIN A uses, effectiveness, possible side effects, interactions, dosage, user ratings and products that contain VITAMIN A.

  2. 6 Health Benefits of Vitamin A, Backed by Science

    May 7, 2023 · From your vision to your immune system, vitamin A is vital for many important processes in your body. Here are 6 impressive health benefits of vitamin A.

  3. Vitamin A - Wikipedia

    Vitamin A is a fat-soluble vitamin, a category that also includes vitamins D, E and K. The vitamin encompasses several chemically related naturally occurring compounds or metabolites, i.e., …

  4. Vitamin A and Carotenoids - Health Professional Fact Sheet

    Vitamin A overview for health professionals. Research health effects, dosing, sources, deficiency symptoms, side effects, and interactions here.

  5. Vitamin A - Mayo Clinic

    Apr 17, 2025 · Vitamin A. Office of Dietary Supplements. https://ods.od.nih.gov/factsheets/VitaminA-HealthProfessional/. Accessed March 4, 2025. …

  6. Vitamin | Definition, Types, & Facts | Britannica

    Sep 20, 2025 · Vitamin, any of several organic substances that are necessary in small quantities for normal health and growth in higher forms of animal life. Vitamins generally cannot be …

  7. Vitamins and Minerals • The Nutrition Source

    Vitamins and minerals are micronutrients required by the body to carry out a range of normal functions. However, these micronutrients are not produced in our

  8. Vitaminas: MedlinePlus enciclopedia médica

    La vitamina C, también llamada ácido ascórbico, es un antioxidante que favorece los dientes y encías sanos. Esta vitamina ayuda al cuerpo a absorber el hierro y a mantener el tejido …

  9. Vitamin A Uses, Side Effects & Warnings - Drugs.com

    Sep 8, 2025 · Vitamin A side effects Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Vitamin A may …

  10. Vitamins: What are they, and what do they do? - Medical News Today

    Oct 5, 2023 · Vitamins are essential to human health. Here, learn about each of the 13 vitamins, including good sources and how they help. Learn more here.