維生素A棕櫚酸酯

Vitamin A Palmitate and Vitamin A

Vitamin A refers to a nutrient divided into two categories: retinoids and carotenoids.

Carotenoids are the pigments that give vegetables and other plant products their bright colors. Unlike retinoids, carotenoids are not bioavailable. Before your body can benefit from their nutrients, it must convert them into retinoids. This process may be difficult for some people, including:

  • premature baby
  • Food-fragile infants and children (not getting enough nutritious food)
  • Food-vulnerable women who are pregnant or breastfeeding (not able to get enough nutritious foods)
  • cystic fibrosis patients

Genetics may also play a role in some cases.

Both types of vitamin A help support eye health, skin health, immune system function, and reproductive health.

Common uses and forms

Vitamin A Palmitate can be taken in supplement form to support and maintain optimal eye health, immune system health, and reproductive health. It is also available as an injection for those who cannot take it in pill form.

It is commonly used as an ingredient in multivitamins and can be used as the only ingredient in supplement form. These supplements may be labeled as preformed vitamin A or retinyl palmitate. The amount of vitamin A a product or supplement contains is listed on the label in IU (International Units).

Vitamin A palmitate is found in a variety of animal products, such as:

  • liver
  • yolk
  • fish
  • Dairy products and dairy products
  • cheese

The U.S. Food and Drug Administration (FDA) recommends that people over the age of four get 5,000 IU of vitamin A from food sources such as animal and plant sources (retinoids and carotenoids).

potential health benefits

Vitamin A palmitate has been studied for a variety of conditions and may have health benefits in a variety of areas, including:

retinitis pigmentosa

Clinical studies conducted by Harvard Medical School and the Massachusetts Eye and Ear Infirmary suggest that a treatment that combines vitamin A palmitate, oily fish, and lutein may help patients diagnosed with a variety of eye conditions, such as retinitis pigmentosa and eye disease. patients with local diseases) gain 20 years of useful vision. Usher syndrome types 2 and 3. Participants took a daily supplement containing 15,000 international units of vitamin A palmitate.

sunburned skin

A study reported in the Journal of Cosmetic Dermatology analyzed the effects of topical vitamin A palmitate and an oil-based moisturizer containing antioxidants on photoaged skin. Body parts studied included the neck, chest, arms and lower legs. Study participants who took the vitamin A palmitate blend showed improvements in overall skin quality starting at 2 weeks and continuing to escalate through 12 weeks.

acne

Topical use of prescription products containing retinoids has shown effectiveness in reducing acne. Retinol has also been shown to cause less skin irritation than other acne treatments, such as tretinoin.

Vitamin A palmitate's ability to support wound healing and immune defense when applied topically is of scientific interest. These areas require more research.

Side effects and risks

Vitamin A palmitate is fat-soluble and stored in the body's fatty tissue. Therefore, it can accumulate to excessive levels, causing toxicity and liver disease. This is more likely to occur with supplements than food. People with liver disease should not take vitamin A palmitate supplements.

High doses of vitamin A supplements have been linked to birth defects, including malformations of the eyes, lungs, skull and heart. Not recommended for pregnant women. Regularly taking high doses of vitamin A may cause depression, dry skin, and muscle and joint pain.

People with certain types of eye disease should not take supplements containing vitamin A palmitate. These include:

  • Stargardt disease (Stargardt macular dystrophy)
  • cone-rod malnutrition
  • best disease
  • Retinal diseases caused by Abca4 gene mutations

Vitamin A palmitate supplements can also interfere with certain medications. If you are currently taking prescription drugs, such as those used to treat psoriasis or any drugs that are processed by the liver, discuss their use with your doctor or pharmacist. Certain over-the-counter medications may also be contraindicated, such as acetaminophen (Tylenol).

generalize

Vitamin A palmitate supplements are not suitable for everyone, such as pregnant women and people with liver disease. However, they appear to be beneficial in certain diseases, such as retinitis pigmentosa. It is safe and healthy to eat foods containing vitamin A palmitate. Problems may arise from taking supplements in doses that are too high. Discuss your use of this or any supplement with your doctor.

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