Vitamin A is a fat-soluble vitamin reported to facilitate eye, skin, immune system and other bodily functions and development. It was originally named "Fat-Soluble A", but renamed to "Vitamin A" in 1920.[4]
There are two different types of vitamin A: preformed and provitamin. The former is found in eggs, fish, and dairy, while the latter is found in fruits, vegetables (orange colors and darker colors) and other plant-based foods.[1,3] It also can be synthesized in a lab.[2]
Vitamin A Deficiency and Toxicity
Vitamin A deficiency is very uncommon in the United States and other industrialized nations. Long-term deficiency may lead to dry eye and night blindness.[1,3]As it is a fat-soluble molecule, it's important to be highly aware of long-term accumulation and toxicity.[5]
Vitamin A is also antagonistic to vitamin D in animal models.[6]
Additionally, people with liver disease who also drink excessive amounts of alcohol may have a better chance of suffering liver damage from consuming vitamin A supplements.[1]
For these reasons, we express caution when discussing vitamin A supplements.
References
- "Vitamin A (Retinol);" MayoClinic.com
- "Vitamin A;" WebMD.com
- "Vitamin A;" Dietary Supplement Fact Sheet; Office of Dietary Supplements; National Institutes of Health
- Drummond, Cecil Jack; "The Nomenclature of the So-Called Acceassory Food Factors (Vitamins)."; The Biochemical Journal vol. 14,5 (1920): 660. doi:10.1042/bj0140660; https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1258930/pdf/biochemj01182-0127.pdf
- Olson, Jazmine M., et al. "Vitamin A Toxicity." StatPearls, StatPearls Publishing, 8 August 2022; https://pubmed.ncbi.nlm.nih.gov/30422511/
- Rohde, Cynthia M., et al. "Vitamin a Antagonizes the Action of Vitamin D in Rats." The Journal of Nutrition, vol. 129, no. 12, 1 Dec. 1999, pp. 2246–2250, 10.1093/jn/129.12.2246; https://academic.oup.com/jn/article/129/12/2246/4722077
Vitamin A News on PricePlow
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Mason Naturals Vitamin A from Fish Liver Oil was created.
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Categories: Beta Carotene, Selenium, Vitamin C, Vitamin E -
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The Vitamin Shoppe Dry Vitamin A was created.
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Swanson Vitamins A C E & Selenium was created.
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Swanson Beta-Carotene was created.
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Swanson Vitamin A was created.
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Universal Uni-Liver Tablets: The OG Way to Supplement Vitamin A
Universal Uni-Liver is the original desiccated liver tablet supplement providing bovine liver and TONS of high-quality vitamin A. Learn about it here!
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Vitamin A Price Alerts
The following price alerts are still active:
- Dec 15, 2024Natural Factors Vitamin A 180 Softgels dropped by 10.1% to $5.96 at iHerb.com
- Dec 08, 2024Carlson Vitamin A 250 Softgels (only 25,000 IU) dropped by 10% to $17.38 at iHerb.com
- Dec 08, 2024Carlson Vitamin A 240 Softgels (only 15,000 IU Palmitate) dropped by 10.1% to $13.74 at iHerb.com
- Dec 08, 2024Carlson Vitamin A - D3 - K2 120 Softgels dropped by 10% to $32.63 at iHerb.com
- Dec 08, 2024Swanson Vitamins A and D 250 Softgels dropped by 17.4% to $4.85 at iHerb.com
- Dec 08, 2024Carlson Vitamin A 300 Softgels dropped by 9.9% to $21.74 at iHerb.com
- Dec 08, 2024Carlson Vitamin A 100 Softgels (only 25,000 IU) dropped by 10% to $8.36 at iHerb.com
- Jul 27, 2024Superior Source Vitamin A 100 Tablets (only 3000mcg RAE (10000 IU)) dropped by 12.9% to $3.39 at AllStarHealth
- Jul 25, 2024Jarrow Formulas CarotenALL 60 Softgels dropped by 18.1% to $17.79 at AllStarHealth
- Jun 11, 2024Country Life Dry Vitamin A 100 Tablets dropped by 26.7% to $6.99 at AllStarHealth
- Jan 07, 2024Carlson Vitamin A 120 Softgels dropped by 33.2% to $8.00 at iHerb.com
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Vitamin A Reviews & Videos
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Sep 28, 2024Out in The Desert with Jocko Hydrate Sticks
![Out in The Desert with Jocko Hydrate Sticks]()
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Sep 27, 2024Vitamin D Leads to Calcification - Is it Making you Stiff and Sick? Dr. Garrett Smith on PricePlow
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Sep 25, 2024VITAMIN A TOXICITY: Dr. Garrett Smith - PricePlow Episode 150
![VITAMIN A TOXICITY: Dr. Garrett Smith - PricePlow Episode 150]()
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Feb 08, 2023Soul Performance Solace Joint Care: Targeting Systemic Inflammation
![Soul Performance Solace Joint Care: Targeting Systemic Inflammation]()
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Feb 01, 2023A Multivitamin with MitoPrime, SAMe, & Boron! Glaxon Multi+
![A Multivitamin with MitoPrime, SAMe, & Boron! Glaxon Multi+]()
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