Foods that are high in vitamin a are liver and fish liver oils, milk and dairy products, egg yolks, and margarine. Beta-carotene, a precursor substance of retinol, is found in fruits, green leafy vegetables, and vegetables.
- It helps cells reproduce normally, a process called cell differentiation.
- It is essential for good vision. The first sign of a vitamin A deficiency is often poor night vision.
- It is necessary for the proper development of an embryo and fetus.
What is it for
Most are used to help clear up severe acne and psoriasis. They have also shown promise for treating other skin disorders, warts, and premature sun aging.
Recent studies show that relevant forms along with antioxidants can help reduce the coloring of fine lines and wrinkles.
These medications require close supervision by a doctor. Isotretinoin (Accutane), an oral acne medication, can cause very serious side effects and should not be used by pregnant women or women of childbearing age who are not taking birth control.
Top 12 Foods that are high in vitamin a
- Cod liver oil
- Beef liver
- Lamb’s liver
- Cheddar cheese
- Hard-boiled egg
- Bluefin tuna
- Goat cheese
- Cream cheese
Vitamin A Function
Vitamin A helps keep the skin and mucous membranes that line the nose, sinuses, and mouth healthy. It also plays a role in:
immune system function
- bone formation
- wound healing
Sources of vitamin A
It comes from two sources. It is a group, called retinoids, that comes from animal items and includes retinol. The other group, called carotenoids, comes from vegetables and includes beta carotene
The body converts beta-carotene to vitamin A. The major carotenoids, including lycopene, lutein, and zeaxanthin, have important biological properties, including antioxidant and photoprotective activities.
It is rare in the advanced world to have a high deficiency. Symptoms include:
- Dry eyes
- Night blindness
- skin problems
Vitamin A deficiency
Vitamin A deficiency can produce any of the following symptoms: night blindness; swollen, dry, or itchy eyes; rough and dry skin; dry hair, and lower resistance to infections.
Severe deficiency leads to weak bones and teeth, corneal ulcers, and in extreme cases, keratomalacia, a serious corneal injury that can lead to blindness.
Retinol; Vitamin A is particularly associated with eye health, as it protects the surface of the cornea. It is also essential for bone development, growth, and reproduction.
It collaborates with the body’s resistance against infections since it protects the mucous membranes of the respiratory, digestive, and urinary tracts and helps keep the skin and hair healthy.
Beta-carotene, also known as pro-vitamin A, is converted to vitamin A in the body. Unlike retinol, beta-carotenes have antioxidant activity, that is, they protect the body from disease and aging by preventing the action of so-called “free radicals”, which are compounds that damage cells.
For children who are deficient in vitamin A, supplements can reduce the severity and complications of measles. Children who have this deficiency are more likely to develop infections, including measles.
In areas of the world where vitamin A deficiency is widespread or where at least 1% of people with measles die,
The World Health Organization (WHO) recommends supplementation for children with measles. However, it does not seem to help unless the child is deficient in retinol.
Never give a child and age-old people vitamin (Cap. Tab.) supplements without a doctor’s advice.
Inflammatory Bowel Disease (IBD)
People with IBD, whether it’s ulcerative colitis or Crohn’s disease, may have difficulty absorbing all the nutrients their bodies need. Doctors often confer that people with IBD take a multivitamin with vitamin a including.
It is not clear if it can reduce the risk of cancer. People who eat a healthy diet with enough beta-carotene and other carotenoids from fruits and vegetables seem to have a lower risk of certain types of cancer, such as:
- breast cancer
- Colon cancer
- Esophagus cancer
- Cervical cancer
Some laboratory studies suggest that retinol and carotenoids may help fight certain cancers in test tubes.
Few studies have shown that taking supplements helps prevent or treat cancer.
In fact, there is some proof that it may be harmful. Taking beta-carotene or vitamin A supplements has been linked to an increased risk of lung cancer in people who smoke or drink alcohol.
However, researchers say further studies are needed to confirm this.
An early study suggests that a topical form of vitamin A may reduce abnormal cell growth in the cervix, called cervical neoplasia.
Researchers are also investigating retinoids, a synthetic form of retinol, for skin cancer. People with certain types of skin cancer tend to have lower levels of vitamin A and beta-carotene in their blood.
However, studies looking at whether taking increased amounts of vitamin A or beta-carotene would prevent or treat skin cancer have had mixed results.
Food and dietary sources
Vitamin A is whole milk yogurt, Veal liver, cottage cheese, chicken Eggs, fish liver oils Dairy products, including whole milk, whole milk, butter, and other cheeses, etc.
The body can also make retinol from beta-carotene and other carotenoids, which are fat-soluble nutrients found in fruits and vegetables that give them their color.
Most dark green leafy vegetables and deep yellow/orange fruits and vegetables, sweet potatoes, carrots, squash and other winter squashes, cantaloupe, apricots, peaches, and mangoes, contain substantial beta-carotene.
By eating these beta-carotene-rich foods, you can increase the levels of vitamin A in your body.
How to take Vitamin A
Retinol is absorbed along with dietary fat. Take it with food.
Studies often use high doses of vitamin A. However, such high doses can be toxic. A physician should monitor any high-dose therapy (any dose approaching the 10,000 IU level for an adult, or above the recommended daily allowance for a child).
Daily dietary intakes of vitamin A are:
Infants, birth to 6 months: 400 mcg
Babies 7 to 12 months: 500 mcg
Children 1 to 3 years: 300 mcg
Children 4 to 8 years old: 400 mcg
Children 9 to 13 years old: 600 mcg
Boys, ages 14 to 18: 900 mcg
Girls ages 14 to 18: 700 mcg
Men 19 years and older: 900 mcg
Women 19 years and older: 700 mcg
Pregnant women ages 14-18: 750 mcg
Pregnant women 19 years and older: 770 mcg
Lactating females ages 14 to 18: 1,200 mcg
Breastfeeding women, 19 years of age and older: 1,300 mcg
Symptoms of vitamin A toxicity include
- muscle and joint pain
- dry or irritated
- nausea or diarrhea
- Hair loss
- dry skin and lips
The Food and Drug Administration (FDA) requires that retinol and other fat-soluble vitamins (vitamins D, E, and K) be added to food products that contain olestra. Also, people taking prescription orlistat or over-the-counter Alli may need a multivitamin.
Vitamin A Supplements
If you follow a healthy and balanced diet, it is very unlikely that you suffer from a vitamin A deficiency. If you think that you are not consuming this vitamin in sufficient quantities through food,
There are various supplements with which you can prevent the deficiency of this vitamin. These are available in the form of capsules, pills, ampoules, gels, and ointments.
It is also often a component of a large number of multivitamin supplements. Check with your family doctor before taking vitamin A supplements, since if you consume them in excess you will be exposing yourself to health problems.
Raw Whole Food Vitamin A Supplement Support for
- *Mucous membrane etc.
The bad side of foods that are high in vitamins a:- *Smokers and people who drink large amounts of alcohol should not take beta-carotene supplements. *Both vitamin A and beta-carotene can increase triglycerides, which are fats in the blood.