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Beta-carotene is a red-orange pigment found in plants and fruits, especially carrots and colourful vegetables. It is a potent antioxidant that may benefit brain, skin, lung, and eye health. Beta-carotene is converted into vitamin A, an essential vitamin. The body only converts as much as it needs, and excess vitamin A is toxic. Some studies have found that beta-carotene supplements may be harmful, especially for smokers. While beta-carotene is found in many fruits and vegetables, vegans may be at risk for vitamin A deficiency because they lack the enzymes necessary to convert beta-carotene into retinol, the bioactive form of vitamin A.
| Characteristics | Values |
|---|---|
| Beta-carotene | A carotenoid compound responsible for giving fruits and vegetables their orange pigment |
| Beta-carotene sources | Fruits and vegetables with a red, orange, or yellow color |
| Beta-carotene conversion | The body converts beta-carotene into vitamin A, an essential vitamin |
| Beta-carotene and vegans | Vegans may be at risk for vitamin A deficiency due to reduced ability to convert beta-carotene into retinol |
| Beta-carotene supplements | May increase the risk of lung cancer for smokers |
| Beta-carotene and health | Beta-carotene is an antioxidant that may benefit brain, skin, lung, and eye health |
| Beta-carotene RDA | There is no official RDA for beta-carotene, but a figure of 10,800mcg per day can be used as a general target |
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What You'll Learn
- Beta-carotene is a red-orange pigment found in plants and fruits, especially carrots and colourful vegetables
- Beta-carotene is converted into vitamin A, an essential vitamin
- Beta-carotene is a potent antioxidant that may benefit brain, skin, lung, and eye health
- Beta-carotene supplements may be harmful to smokers and those exposed to asbestos
- Beta-carotene is fat-soluble, so eating it with fatty foods like olive oil or nuts can improve absorption
Beta-carotene is a red-orange pigment found in plants and fruits, especially carrots and colourful vegetables
Beta-carotene is considered a provitamin A carotenoid, meaning that the body can convert it into vitamin A (retinol). The amount of vitamin A is measured in retinol activity equivalents (RAE). The current daily value for vitamin A is 900mcg of RAE. There is no official recommended daily allowance (RDA) for beta-carotene, but a figure of 10,800mcg per day can be used as a general target. This is based on the rate of conversion of beta-carotene into vitamin A. It takes 12mcg of beta-carotene to create 1mcg of RAE.
Beta-carotene is found in many fresh fruits and vegetables, including carrots, spinach, lettuce, tomatoes, sweet potatoes, broccoli, cantaloupe, winter squash, dark leafy greens, butternut squash, and peas. The more intense the colour of the fruit or vegetable, the more beta-carotene it contains. Beta-carotene has powerful antioxidant properties, which help to protect the body from free radicals that can cause cellular and tissue damage, known as oxidative stress. Diets rich in beta-carotene may help promote eye health and protect against age-related macular degeneration (AMD).
However, it is important to note that beta-carotene supplements may not be suitable for everyone. Some studies have found that smokers who take beta-carotene supplements may have an increased risk of lung cancer. Additionally, high doses of beta-carotene supplements may interfere with the absorption of other important nutrients and negatively affect the body's natural defence system. Therefore, it is generally recommended to obtain beta-carotene from a healthy and varied diet, rather than relying on supplements.
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Beta-carotene is converted into vitamin A, an essential vitamin
Beta-carotene is a red-orange pigment found in plants and fruits, especially carrots and colourful vegetables. Beta-carotene is converted into vitamin A, an essential vitamin. The name "beta carotene" comes from the Greek "beta" and Latin "carota" (carrot). Beta-carotene is a precursor for creating vitamin A in the body. The amount of vitamin A is measured in retinol activity equivalents (RAE). The current daily value for vitamin A is 900mcg of RAE. There is no official recommended daily allowance (RDA) for beta-carotene, but a figure of 10,800mcg per day can be used as a general target. This is based on the rate of conversion of beta-carotene into vitamin A. It takes 12mcg of beta-carotene to create 1mcg of RAE.
Beta-carotene is a fat-soluble vitamin, so eating it along with foods containing fat, such as olive oil or nuts, can help boost absorption. Beta-carotene is considered a provitamin A carotenoid, meaning that the body can convert it into vitamin A (retinol). Beta-carotene is a potent antioxidant that may benefit brain, skin, lung, and eye health. Food sources are likely a safer, more healthful choice than beta-carotene supplements.
Some studies have found that people who take beta-carotene supplements may have a higher risk for conditions such as cancer and heart disease. Researchers think this may be because the total of all the nutrients in a healthy, balanced diet gives more protection than just beta-carotene supplements alone. There is also some evidence that when smokers and people exposed to asbestos take beta-carotene supplements, their risk of lung cancer increases. For this reason, smokers should not take beta-carotene supplements.
Beta-carotene supplements may be helpful for people with scleroderma, although this has not yet been confirmed by research. It is best to get beta-carotene from food in your diet and avoid supplements until more studies are done. The richest sources of beta-carotene are yellow, orange, and green leafy fruits and vegetables.
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Beta-carotene is a potent antioxidant that may benefit brain, skin, lung, and eye health
Brain Health
Beta-carotene may improve cognitive function due to its antioxidant effects. A 2018 Cochrane review found small benefits associated with beta-carotene supplementation on cognitive function and memory. However, the benefits were only observed with long-term supplementation over an average of 18 years, and more research is needed. Eating fruits and vegetables rich in beta-carotene is generally recommended over taking supplements.
Skin Health
Beta-carotene gives the skin a golden, bronzed complexion and boosts tanning. It also has antioxidant properties that protect the skin from free radicals and help prevent skin ageing caused by UV rays.
Lung Health
There are mixed findings regarding the impact of beta-carotene on lung health. Some studies suggest that taking beta-carotene supplements may increase the risk of lung cancer for people who smoke, while others indicate that foods rich in beta-carotene may lower the risk of certain types of cancer and possibly heart disease.
Eye Health
Beta-carotene and vitamin A are important for eye health, as they help keep the cornea moist and healthy. Deficiencies in vitamin A can lead to dry eyes, corneal ulcers, clouding of the eye, and vision loss. Beta-carotene can also enhance night and peripheral vision and may reduce the risk of age-related macular degeneration.
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Beta-carotene supplements may be harmful to smokers and those exposed to asbestos
Beta-carotene is a plant pigment that gives red, orange, and yellow vegetables their vibrant colour. It is considered a provitamin A carotenoid, meaning that the body can convert it into vitamin A. Beta-carotene is also a potent antioxidant, which may benefit your brain, skin, lung, and eye health.
Beta-carotene can be sourced from food or supplements. The advantage of dietary beta-carotene is that the body only converts as much as it needs. Excess vitamin A is toxic, and toxic vitamin A levels can occur if you consume too many supplements. Beta-carotene supplements are generally safe, but they may present risks for people who smoke or are exposed to asbestos.
According to a study by the U.S. Preventive Services Task Force, beta-carotene supplementation may increase the risk of lung cancer or death from cardiovascular disease for anyone who is regularly exposed to asbestos. The study also concluded that the potential harms of beta-carotene supplements outweigh any benefits, particularly for those with occupational asbestos exposure.
Similarly, studies have shown that smokers with high beta-carotene levels had a higher risk of lung cancer and other smoking-related cancers than other smokers. The Beta-Carotene and Retinol Efficacy Trial (CARET) revealed that smokers who took dietary supplements containing beta-carotene had an increased risk of developing lung cancer. The National Institute of Health states that beta-carotene obtained through natural food sources, such as fruits and vegetables, is associated with a lower risk of lung cancer.
Therefore, it is recommended that people who smoke or are exposed to asbestos avoid beta-carotene supplements and instead focus on obtaining beta-carotene through a balanced and diverse diet rich in fruits and vegetables.
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Beta-carotene is fat-soluble, so eating it with fatty foods like olive oil or nuts can improve absorption
Beta-carotene is a red-orange pigment found in plants and fruits, especially carrots and colourful vegetables. It is a potent antioxidant that may benefit brain, skin, lung, and eye health. Beta-carotene is a precursor for vitamin A, an essential vitamin, and the body only converts as much as it needs. The name "beta carotene" comes from the Greek "beta" and Latin "carota" (carrot). Beta-carotene was discovered by the scientist Heinrich Wilhelm Ferdinand Wackenroder, who crystallised it from carrots in 1831.
It is always recommended to eat a diet rich in fruits and vegetables, which are full of vitamins, minerals, and plant compounds that support health. A healthy and varied diet can provide a person's beta-carotene requirements. Food sources are likely a safer, more healthful choice than beta-carotene supplements. This is especially true for smokers, as studies have shown that beta-carotene supplements may increase the risk of lung cancer for people who smoke.
However, it is important to note that some people, including vegans, may be at risk for Vitamin A deficiency because they lack the enzymes necessary to convert beta-carotene into retinol, the bioactive form of Vitamin A. This reduced enzyme activity is genetic. While a vegan diet is generally a healthy choice, those following it should be vigilant about getting adequate micronutrients, like B vitamins and omega 3 fats, as well as Vitamin A.
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Frequently asked questions
Beta carotene is a red-orange pigment found in plants and fruits, especially carrots and colourful vegetables. The body converts beta carotene into vitamin A, which is an essential vitamin.
Beta-carotene is abundant in fruits and vegetables, making it easily accessible to vegetarians. Beta-carotene is a plant pigment that gives red, orange, and yellow vegetables their vibrant colour. It is considered a provitamin A carotenoid, meaning that the body can convert it into vitamin A (retinol).
Beta carotene is a potent antioxidant that may benefit your brain, skin, lung, and eye health. Diets rich in carotenoids like beta carotene may help promote eye health and protect against age-related macular degeneration (AMD), a disease that causes vision loss. Research suggests that beta carotene may also help protect against the development of certain cancers and heart disease.
Beta-carotene supplements may be risky for people who smoke or have smoked. Studies have shown that smokers with high beta-carotene levels may have an increased risk of lung cancer and other smoking-related cancers. Additionally, high doses of beta-carotene supplements may interfere with the absorption of other important nutrients and negatively affect the body's natural defence system.
