Vitamin A is an essential nutrient for the body. It helps to maintain and repair cells and tissues, and supports the immune system by fighting off microorganisms that attempt to enter the body.
Vitamin A is found in a variety of foods including animal products like meat, fish, eggs and dairy, as well as vegetables like spinach and kale. However, it can also be obtained through supplementation or in a pill form.
In order to understand how vitamin A works in the body, it’s important to know exactly what it does. Here’s a quick look at some of its main functions:
Cell growth: Vitamin A is necessary for normal cell growth, which means that it helps keep your organs healthy and functioning properly. Without enough vitamin A in your diet, your body may have difficulty repairing itself after an injury or infection.
Maintaining vision: Vitamin A is necessary for good vision because it plays an important role in helping you see things clearly at night time (when there isn’t much light available). It works with other vitamins such as B6 and C to help keep your eyesight sharp so you can avoid accidents while driving at night etc…
Vitamin A 2400 Mcg
Vitamin A is an essential nutrient that supports eye and immune health.*
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
No gluten, yeast, wheat, milk or milk derivatives, lactose, sugar, preservatives, artificial color, artificial flavor, sodium (less than 5 mg per serving)
Spring Valley Vitamin A Supplement, 2400 mcg is a dietary supplement designed to support immune health. Vitamin A is an essential nutrient that supports eye and immune health. The suggested adult dosage is one softgel, preferably with a meal. This supplement is free of gluten, yeast, wheat, milk or milk derivatives, lactose, sugar, preservatives, artificial colors, and artificial flavors, and contains less than 5 milligrams of sodium per serving. You can rest assured that Spring Valley Vitamin A Supplement, 2400 mcg is produced with strict quality guidelines and is backed by our quality guarantee.
Spring Valley understands living a healthy, balanced lifestyle is the key to being your best self. With an affordable range of products inspired by nature, Spring Valley supports your and your family’s health and holistic wellbeing.
- Immune health support supplement
- 2400mcg vitamin A per softgel
- Free from gluten, yeast, wheat, milk or milk derivatives, lactose, sugar, and preservatives
- No artificial colors or flavors
- Less than 5mg of sodium per serving
- Tamper-evident packaging
- Bottle of 250 softgels
vitamin a 2400 mcg benefits
Vitamin A is the generic term for a group of fat-soluble compounds highly important for human health.
They’re essential for many processes in your body, including maintaining healthy vision, ensuring the normal function of your immune system and organs and aiding the proper growth and development of babies in the womb.
It’s recommended that men get 900 mcg, women 700 mcg and children and adolescents 300–600 mcg of vitamin A per day (1Trusted Source).
Vitamin A compounds are found in both animal and plant foods and come in two different forms: preformed vitamin A and provitamin A.
Preformed vitamin A is known as the active form of the vitamin, which your body can use just as it is. It’s found in animal products including meat, chicken, fish and dairy and includes the compounds retinol, retinal and retinoic acid.
Provitamin A carotenoids — alpha-carotene, beta-carotene and beta-cryptoxanthin — are the inactive form of the vitamin found in plants.
These compounds are converted to the active form in your body. For example, beta-carotene is converted to retinol (an active form of vitamin A) in your small intestine (2Trusted Source).
Here are 6 important health benefits of vitamin A.
1. Protects Your Eyes From Night Blindness and Age-Related Decline
Vitamin A is essential for preserving your eyesight.
The vitamin is needed to convert light that hits your eye into an electrical signal that can be sent to your brain.
In fact, one of the first symptoms of vitamin A deficiency can be night blindness, known as nyctalopia (3Trusted Source).
Night blindness occurs in people with vitamin A deficiency, as the vitamin is a major component of the pigment rhodopsin.
Rhodopsin is found in the retina of your eye and extremely sensitive to light.
People with this condition can still see normally during the day, but have reduced vision in darkness as their eyes struggle to pick up light at lower levels.
In addition to preventing night blindness, eating adequate amounts of beta-carotene may help slow the decline in eyesight that some people experience as they age (4Trusted Source).
Age-related macular degeneration (AMD) is the leading cause of blindness in the developed world. Though its exact cause is unknown, it’s thought to be the result of cellular damage to the retina, attributable to oxidative stress (5Trusted Source).
The Age-Related Eye Disease Study found that giving people over the age of 50 with some eyesight degeneration an antioxidant supplement (including beta-carotene) reduced their risk of developing advanced macular degeneration by 25% (6Trusted Source).
However, a recent Cochrane review found that beta-carotene supplements alone won’t prevent or delay the decline in eyesight caused by AMD (7Trusted Source).
SUMMARY
Eating adequate amounts of vitamin A prevents the development of night blindness and may help slow the age-related decline of your eyesight.
2. May Lower Your Risk of Certain Cancers
Cancer occurs when abnormal cells begin to grow or divide in an uncontrolled way.
As vitamin A plays an important role in the growth and development of your cells, its influence on cancer risk and role in cancer prevention is of interest to scientists.
In observational studies, eating higher amounts of vitamin A in the form of beta-carotene has been linked to a decreased risk of certain types of cancer, including Hodgkin’s lymphoma, as well as cervical, lung and bladder cancer.
Yet, though high intakes of vitamin A from plant foods have been associated with a reduced risk of cancer, animal foods which contain active forms of vitamin A aren’t linked in the same way.
Similarly, vitamin A supplements haven’t shown the same beneficial effects (16Trusted Source).
In fact, in some studies, smokers taking beta-carotene supplements experienced an increased risk of lung cancer.
At the moment, the relationship between vitamin A levels in your body and cancer risk is still not fully understood.
Still, current evidence suggests that getting adequate vitamin A, especially from plants, is important for healthy cell division and may reduce your risk of some types of cancer (20Trusted Source).
SUMMARY
Adequate vitamin A intake from whole plant foods may reduce your risk of certain cancers, including Hodgkin’s lymphoma, as well as cervical, lung and bladder cancer. However, the relationship between vitamin A and cancer is not fully understood.
3. Supports a Healthy Immune System
Vitamin A plays a vital role in maintaining your body’s natural defenses.
This includes the mucous barriers in your eyes, lungs, gut and genitals which help trap bacteria and other infectious agents.
It’s also involved in the production and function of white blood cells, which help capture and clear bacteria and other pathogens from your bloodstream.
This means that a deficiency in vitamin A can increase your susceptibility to infections and delay your recovery when you get sick (21Trusted Source, 22Trusted Source).
In fact, in countries where infections like measles and malaria are common, correcting vitamin A deficiency in children has been shown to decrease the risk of dying from these diseases (23Trusted Source).
SUMMARY
Having enough vitamin A in your diet helps keep your immune system healthy and function at its best.
4. Reduces Your Risk of Acne
Acne is a chronic, inflammatory skin disorder.
People with this condition develop painful spots and blackheads, most commonly on the face, back and chest.
These spots occur when the sebaceous glands get clogged up with dead skin and oils. These glands are found in the hair follicles on your skin and produce sebum, an oily, waxy substance that keeps your skin lubricated and waterproof.
Though the spots are physically harmless, acne may have a serious effect on people’s mental health and lead to low self-esteem, anxiety and depression (24Trusted Source).
The exact role that vitamin A plays in the development and treatment of acne remains unclear (25Trusted Source).
It has been suggested that vitamin A deficiency may increase your risk of developing acne, as it causes an overproduction of the protein keratin in your hair follicles (26, 27Trusted Source).
This would increase your risk of acne by making it more difficult for dead skin cells to be removed from hair follicles, leading to blockages.
Some vitamin-A-based medications for acne are now available with a prescription.
Isotretinoin is one example of an oral retinoid that is effective in treating severe acne. However, this medication can have serious side effects and must only be taken under medical supervision (28Trusted Source, 29Trusted Source).
SUMMARY
The exact role of vitamin A in the prevention and treatment of acne is unclear. Yet, vitamin-A-based medications are often used to treat severe acne.
5. Supports Bone Health
The key nutrients needed for maintaining healthy bones as you age are protein, calcium and vitamin D.
However, eating enough vitamin A is also necessary for proper bone growth and development, and a deficiency in this vitamin has been linked to poor bone health.
In fact, people with lower blood levels of vitamin A are at a higher risk of bone fractures than people with healthy levels (30Trusted Source).
Additionally, a recent meta-analysis of observational studies found that people with the highest amounts of total vitamin A in their diet had a 6% decreased risk of fractures (30Trusted Source).
Yet, low levels of vitamin A may not be the only problem when it comes to bone health. Some studies have found that people with high intakes of vitamin A have a higher risk of fractures as well (31Trusted Source).
Even so, these findings are all based on observational studies, which cannot determine cause and effect.
This means that currently, the link between vitamin A and bone health is not fully understood, and more controlled trials are needed to confirm what has been seen in observational studies.
Bear in mind that vitamin A status alone does not determine your risk of fractures, and the impact of the availability of other key nutrients, like vitamin D, also plays a role (32Trusted Source).
SUMMARY
Eating the recommended amount of vitamin A may help protect your bones and reduce your risk of fractures, though the connection between this vitamin and bone health is not fully understood.
6. Promotes Healthy Growth and Reproduction
Vitamin A is essential for maintaining a healthy reproductive system in both men and women, as well as ensuring the normal growth and development of embryos during pregnancy.
Rat studies examining the importance of vitamin A in male reproduction have shown that a deficiency blocks the development of sperm cells, causing infertility.
Likewise, animal studies have suggested that vitamin A deficiency in females can impact reproduction by reducing egg quality and affecting egg implantation in the womb (33Trusted Source).
In pregnant women, vitamin A is also involved in the growth and development of many major organs and structures of the unborn child, including the skeleton, nervous system, heart, kidneys, eyes, lungs and pancreas.
Yet, though much less common than vitamin A deficiency, too much vitamin A during pregnancy can be harmful to the growing baby as well and may lead to birth defects (35Trusted Source, 36Trusted Source).
Therefore, many health authorities recommended that women avoid foods that contain concentrated amounts of vitamin A, such as pâté and liver, as well as supplements containing vitamin A during pregnancy.
SUMMARY
Adequate amounts of vitamin A in the diet are essential for reproductive health and the healthy development of babies during pregnancy.
Taking Too Much Vitamin A Can Be Risky
Vitamin A is a fat-soluble vitamin, which is stored in your body. This means that excess consumption can lead to toxic levels.
Hypervitaminosis A is caused by consuming too much preformed vitamin A through your diet or supplements containing the vitamin.
Symptoms can include nausea, dizziness, headaches, pain and even death.
Though it can be caused by excessive intake from the diet, this is rare compared to overconsumption from supplements and medications.
Additionally, eating a lot of provitamin A in its plant form doesn’t carry the same risks, as its conversion to the active form in your body is regulated (37Trusted Source).
SUMMARY
Eating high amounts of the active form of vitamin A from animal foods, medications or supplements can be toxic. Excessive consumption of provitamin A from plant foods is unlikely.
The Bottom Line
Vitamin A is vital for many important processes in your body.
It’s used to maintain healthy vision, ensure the normal functioning of your organs and immune system, as well as establishing normal growth and development of babies in the womb.
Both too little and too much vitamin A could have negative effects on your health.
The best way to ensure you get the balance right is to consume vitamin-A-rich foods as part of your normal diet and avoid supplementing with excessive amounts.
Food Fix: Immune System Boost
Food Fix: Immune System Boost
A strong immune system helps to keep a person healthy. Can specific foods boost the immune system? Watch this video to find out.