Latest news with #UVrays
CNET
7 hours ago
- Health
- CNET
Improve Eye Health With These 6 Best Vitamins and Supplements
The bright summer sunshine can do wonders for your mental health, but the increase in allergens and harmful UV rays is not as kind to your eyes. Annoyances like watery eyes, dry eyes or blurry vision are common in this season, but it's possible to make your eyes more resilient to these issues. Having a balanced diet that incorporates dark green leafy vegetables and essential fatty acids is important for more than just your nutrition and gut health. Everything you eat can impact specific organs, like your eyes. Fortunately, that means you can incorporate specific vitamins, supplements and foods into your diet to support your eye health and vision. However, make sure you talk to your doctor before making any changes, even if it's just including more eye-boosting vitamins and supplements in your diet. They can help you figure out what a balanced diet looks like for you, especially if you want to focus on a specific aspect of your health. The best vitamins and supplements for eye health Getty Images In addition to a balanced diet, here are the best vitamins and supplements for your eyes. Luckily, you can get most of these added supplements for less than $10. VitaminVitamin A supports your vision, immune system, heart, lungs and overall growth and development. Specifically, vitamin A helps you see a full spectrum of light, as the vitamin produces pigments in the retina. It can also keep your eyes from drying out. You can find vitamin A in foods such as salmon, broccoli, eggs, carrots and fortified breakfast cereals. You have probably heard of the magic of carrots. Yes, it's true: Carrots are great for your eyes. Carrots (and other vividly colored fruits and vegetables) are high in beta-carotene, which is a compound that your body uses to make vitamin A. Beta-carotene is also available in a supplement form, although it isn't as common as vitamin A and is often more expensive. Vitamin C Vitamin C is found in foods like citrus fruit, bell peppers and tomatoes. Getty Images Vitamin C is like sunscreen for your eyes: It helps protect them from UV damage. The more time you spend outside and under the sun, the greater the risk for damage. According to the American Academy of Ophthalmology, too long in the sun can cause irreversible damage. Vitamin C can also lower your risk of cataracts, a disease that causes the lens of your eyes to become cloudy. While a recent study found that vitamin C supplementation was effective in patients who were already vitamin C deficient, more studies are needed to truly understand the relationship between vitamin C and a lower risk of cataracts. In addition to getting enough vitamin C, avoid tanning beds, and if you are outside, wear sunglasses and a hat to protect your eyes. Omega-Optometrists regularly recommend their patients consume omega-3s, and if a patient isn't getting enough of these fatty acids in their diet, try a supplement. Omega-3s are mainly found in fatty fish such as tuna, salmon, mackerel or herring and some nuts and seeds. The American Optometric Association points to omega-3s as a nutrient that can slow the progress of age-related macular degeneration. Studies have also found that they can help prevent dry eye disease. These nutrients are great for both conditions due to their anti-inflammatory effects. Vitamin E yulka3ice/iStock/Getty Images Another powerful antioxidant, vitamin E is vital to all our cells and cell functions. It helps to protect our bodies from cancer-causing free radicals and plays an important role in vision. Studies have shown that vitamin E can help protect the retinas from free radicals that can cause eye disease. Vitamin C, another antioxidant, has more properties that help regeneration. Vitamin E can only help to protect the cells already there. But vitamin E can slow the progression of age-related macular degeneration. The American Optometric Association recommends 400 IU of vitamin E a day. Zinc Zinc is found in almost all multivitamins because it is such an essential nutrient to the body. It is used to boost the immune system and help the body heal from wounds quickly. Zinc also aids in eye health. Zinc helps vitamin A create melanin (a pigment that protects the eyes) and may shield the eyes from age-related macular degeneration. The American Optometric Association recommends 40 to 80 mg a day to slow the progression. Read more: Best Zinc Supplements Lutein and zeaxanthin Lutein and zeaxanthin are known to be important to our eyes. Lutein and zeaxanthin are carotenoids found in red and yellowish fruits and vegetables, as these compounds give the produce their vibrant colors. Carotenoids, also powerful antioxidants, are vital to eye health. They protect the eyes from free radicals that can cause damage. Lutein and zeaxanthin, specifically, have been found to prevent damage to retinas. These carotenoids can also slow the progression of age-related macular degeneration. The American Optometric Association recommends a daily amount of 10 mg of lutein and 2 mg of zeaxanthin. While you can find lutein and zeaxanthin in supplement form, one bottle is on the pricier side. You may find it better, easier and more affordable to just eat more fruits and vegetables. Vitamins and supplements found in foods undefined Vitamin/supplement Foods Vitamin A Salmon, broccoli, eggs, carrots and fortified breakfast cereals Vitamin C Kale, broccoli, oranges, lemons, strawberries and Brussels sprouts Omega-3s Tuna, salmon, herring, mackerel, chia seeds, flaxseed and walnuts Vitamin E Sunflower seeds, almonds, peanuts, collared greens, red bell peppers, mangoes and avocados Zinc Meat, shellfish, chickpeas, lentils, pumpkin seeds, cashews, almonds, eggs, cheese and milk Lutein and zeaxanthin Kale, spinach, peas, broccoli, orange juice, red peppers, honeydew melons and grapes What to consider Most vitamins and supplements are generally considered safe for people to take, as they're nutrients your body naturally requires. You should always talk to your doctor before starting any supplements. Some vitamins and supplements can interact with various medications. Check with your doctor or pharmacist before taking any new vitamins or supplements in conjunction with certain medications. Especially if you are pregnant or breastfeeding, consult a medical provider first. Your doctor should be able to safely guide you to the best vitamins and supplements for eye health, as well as proper dosages. Eye health tips In addition to the best vitamins and supplements for eye health, there are other ways you can protect your eyes and preserve your vision health: Wear sunglasses: Sunglasses block harmful UV light, decreasing your risk of cataracts, eye cancer and sunburn. Sunglasses block harmful UV light, decreasing your risk of cataracts, eye cancer and sunburn. Screen breaks: The American Optometric Association recommends the 20-20-20 rule, which states that every 20 minutes, you look away from your screen at something 20 feet away for 20 seconds. The American Optometric Association recommends the 20-20-20 rule, which states that every 20 minutes, you look away from your screen at something 20 feet away for 20 seconds. Physical activity: The American Academy of Ophthalmology reported on a study that found a correlation between exercise and eye damage prevention, though more studies are needed. The American Academy of Ophthalmology reported on a study that found a correlation between exercise and eye damage prevention, though more studies are needed. Avoid smoking: Smoking cigarettes can lead to eye diseases that result in vision loss and blindness, according to the Food and Drug Administration. Smoking cigarettes can lead to eye diseases that result in vision loss and blindness, according to the Food and Drug Administration. Get regular eye exams: Even if you have perfect vision, it is important to regularly get an eye exam to catch potential issues early. How often you should get an eye exam depends on your age. For instance, people ages 20 to 39 should get an eye exam every five years, while those ages 65 and up should get an eye exam every one to two years. Even if you have perfect vision, it is important to regularly get an eye exam to catch potential issues early. How often you should get an eye exam depends on your age. For instance, people ages 20 to 39 should get an eye exam every five years, while those ages 65 and up should get an eye exam every one to two years. Remove your makeup: Before bed, always remove your makeup to prevent eye irritation and inflammation.
CNN
4 days ago
- Health
- CNN
Influencers are pushing false claims about SPF. Doctor explains why they are wrong
Dermatologists are expressing alarm over the "anti-sunscreen movement," fearing it could lead to widespread exposure to cancer-causing UV rays. Board-certified Cosmetic Dermatologist Dr. Shereene Idriss discusses these concerns with CNN's Danny Freeman.
CNN
4 days ago
- Health
- CNN
Influencers are pushing false claims about SPF. Doctor explains why they are wrong
Dermatologists are expressing alarm over the "anti-sunscreen movement," fearing it could lead to widespread exposure to cancer-causing UV rays. Board-certified Cosmetic Dermatologist Dr. Shereene Idriss discusses these concerns with CNN's Danny Freeman.
The Guardian
06-08-2025
- Health
- The Guardian
As influencers spread ‘toxic' claims, what is the truth about sunscreen?
It's summertime in the UK and social media is awash with influencers airing their concerns about sunscreen. Among them is reality TV star Sam Faiers from The Only Way Is Essex, who believes sunscreen is 'full of toxic ingredients'. None of her family wore sunscreen, she said, adding that her children had built up 'a really good tolerance' to the sun. Some of the claims appear to be fuelled by a US doctor who told his followers: 'Be careful what you smear on yourself and your children.' Here we look at the science behind sunscreen and sun exposure. It's all down to the high energy ultraviolet (UV) rays. These cause premature skin ageing and wrinkles by degrading collagen and elastin. Collagen gives skin its firmness and structure, while elastin makes it stretchy. UV rays can also damage the DNA in skin cells, leading to mutations that ultimately drive skin cancers. One in three cancers globally is a skin cancer, and the main driver is UV rays. 'Too much UV radiation from the sun is the main cause of melanoma, the most serious type of skin cancer,' said Dr Claire Knight at Cancer Research UK. 'That's why it's important to develop good sun safety habits from a young age and protect your skin when the sun is strong using shade, clothing and sunscreen together.' When the summer sunshine arrives, the skin responds to protect itself. The outermost layer, the epidermis, thickens and many people develop a tan, as cells in the skin called melanocytes produce more UV-absorbing melanin. Not everyone tans though, and acquiring a tan itself results in DNA damage. 'Most of that damage gets repaired, but some of it doesn't, it causes mutations and those can go on developing throughout life to give rise to skin cancer,' said Brian Diffey, emeritus professor of photobiology at Newcastle University. 'Sun exposure in childhood is a critical period for developing skin cancer, particularly melanoma, later in life.' He advises using sunscreen when the sun can harm your skin and not bothering when the UV index is less than three, which in the UK is generally from mid-October to mid-March. Sun creams contain filters that absorb UV rays. They protect by reducing the amount of UV that reaches the skin where it can cause burning and other damage. There are two main types of UV filters. The first are inorganic compounds, typically zinc oxide and titanium dioxide. The second are organic compounds, where organic simply means they contain carbon. Both types are manufactured and added to creams, sprays and lip salves. Many sunscreens contain inorganic and organic UV filters to improve sun protection. They trace back to a 2019 study conducted by the US Food and Drug Administration (FDA). Researchers found traces of organic UV filters, namely avobenzone, oxybenzone, octocrylene and ecamsule, in people's blood after applying sun cream. The concentrations exceeded the level at which the FDA recommends companies do specific tests for toxic effects. Dr Tro Kalayjian, who runs a US weight loss clinic, posted the paper on X, adding: 'Be careful what you smear on yourself and your children.' The study prompted the FDA to call for more work on the compounds, but the authors stressed that they were not warning people off the products. 'These results do not indicate that individuals should refrain from the use of sunscreen,' they wrote. The study looked at sunscreen under 'maximal use conditions', which meant really slathering the cream on. Under real conditions, people apply about one tenth of that used in the study, Diffey said. That alone would bring three of the four ingredients below the FDA's threshold, he added. The inorganic UV filters, zinc oxide and titanium dioxide, have raised few concerns because they are not easily absorbed into the bloodstream. They can still, however, have an environmental impact when they wash off sun cream-covered swimmers and accumulate in water and marine life. More questions surround organic UV filters such as oxybenzone. These are endocrine disruptors, meaning they mimic natural hormones. Whether they cause harm at the doses people get from wearing sun cream is unclear, but a number of studies have looked at levels of benzophenones (which include oxybenzone) in urine and linked higher levels to effects on sperm and poorer fertility, with affected couples taking longer to conceive. Regulatory bodies around the world are seeking more information from manufacturers on organic UV filters, but some countries are already taking action. The UK's Office for Product Safety and Standards plans to tighten limits on oxybenzone next year, bringing them more in line with Europe. Today, UK sunscreens can contain up to 6% oxybenzone, but in 2026 the maximum concentration will be reduced to 2.2% for products that are applied to the whole body. Creams and sprays for the face and hands, and lip salves, can still contain 6%, as they are applied to smaller patches of skin. In Australia, the Therapeutic Goods Administration (TGA) has recommended a reformulation of sunscreens and additional safeguards on three chemical compounds, including oxybenzone. In the US, an FDA review is ongoing. Some social media posts have spread claims that sunscreens cause cancer, but that is false. 'There's zero evidence for that,' said Antony Young, emeritus professor of experimental photobiology at King's College London. 'Skin cancers are caused by mutations, and almost all skin cancers have a mutation that is highly UV specific.' Others raise concerns over vitamin D deficiency. In the summer, most of our vitamin D is made through sun on our skin. But Young and his colleagues found that sunscreens have little impact on the vitamin D people make. The amount of sunlight needed to produce vitamin D is far below what it takes to cause sunburn. According to some doctors, concerns over skin cancer have eclipsed the broader health benefits of sunshine. Tentative research suggests that people who get more sun may have a lower risk of heart disease, high blood pressure, autoimmune diseases and even certain cancers. 'Sunburn is a risk factor for melanoma, but sunlight is good for you,' said Prof Richard Weller at the University of Edinburgh. 'You can use sunscreen, you can use a hat, or you can pop inside, whatever is good for you. Just don't get sunburned.' 'My general advice is to enjoy the sun, but don't get sunburned,' Young added. 'You can limit your time, or choose your time, or protect yourself, whether that's by shade, clothing or sunscreen. And sunscreens do work.'
The Guardian
06-08-2025
- Health
- The Guardian
As influencers spread ‘toxic' claims, what is the truth about sunscreen?
It's summertime in the UK and social media is awash with influencers airing their concerns about sunscreen. Among them is reality TV star Sam Faiers from The Only Way Is Essex, who believes sunscreen is 'full of toxic ingredients'. None of her family wore sunscreen, she said, adding that her children had built up 'a really good tolerance' to the sun. Some of the claims appear to be fuelled by a US doctor who told his followers: 'Be careful what you smear on yourself and your children.' Here we look at the science behind sunscreen and sun exposure. It's all down to the high energy ultraviolet (UV) rays. These cause premature skin ageing and wrinkles by degrading collagen and elastin. Collagen gives skin its firmness and structure, while elastin makes it stretchy. UV rays can also damage the DNA in skin cells, leading to mutations that ultimately drive skin cancers. One in three cancers globally is a skin cancer, and the main driver is UV rays. 'Too much UV radiation from the sun is the main cause of melanoma, the most serious type of skin cancer,' said Dr Claire Knight at Cancer Research UK. 'That's why it's important to develop good sun safety habits from a young age and protect your skin when the sun is strong using shade, clothing and sunscreen together.' When the summer sunshine arrives, the skin responds to protect itself. The outermost layer, the epidermis, thickens and many people develop a tan, as cells in the skin called melanocytes produce more UV-absorbing melanin. Not everyone tans though, and acquiring a tan itself results in DNA damage. 'Most of that damage gets repaired, but some of it doesn't, it causes mutations and those can go on developing throughout life to give rise to skin cancer,' said Brian Diffey, emeritus professor of photobiology at Newcastle University. 'Sun exposure in childhood is a critical period for developing skin cancer, particularly melanoma, later in life.' He advises using sunscreen when the sun can harm your skin and not bothering when the UV index is less than three, which in the UK is generally from mid-October to mid-March. Sun creams contain filters that absorb UV rays. They protect by reducing the amount of UV that reaches the skin where it can cause burning and other damage. There are two main types of UV filters. The first are inorganic compounds, typically zinc oxide and titanium dioxide. The second are organic compounds, where organic simply means they contain carbon. Both types are manufactured and added to creams, sprays and lip salves. Many sunscreens contain inorganic and organic UV filters to improve sun protection. They trace back to a 2019 study conducted by the US Food and Drug Administration (FDA). Researchers found traces of organic UV filters, namely avobenzone, oxybenzone, octocrylene and ecamsule, in people's blood after applying sun cream. The concentrations exceeded the level at which the FDA recommends companies do specific tests for toxic effects. Dr Tro Kalayjian, who runs a US weight loss clinic, posted the paper on X, adding: 'Be careful what you smear on yourself and your children.' The study prompted the FDA to call for more work on the compounds, but the authors stressed that they were not warning people off the products. 'These results do not indicate that individuals should refrain from the use of sunscreen,' they wrote. The study looked at sunscreen under 'maximal use conditions', which meant really slathering the cream on. Under real conditions, people apply about one tenth of that used in the study, Diffey said. That alone would bring three of the four ingredients below the FDA's threshold, he added. The inorganic UV filters, zinc oxide and titanium dioxide, have raised few concerns because they are not easily absorbed into the bloodstream. They can still, however, have an environmental impact when they wash off sun cream-covered swimmers and accumulate in water and marine life. More questions surround organic UV filters such as oxybenzone. These are endocrine disruptors, meaning they mimic natural hormones. Whether they cause harm at the doses people get from wearing sun cream is unclear, but a number of studies have looked at levels of benzophenones (which include oxybenzone) in urine and linked higher levels to effects on sperm and poorer fertility, with affected couples taking longer to conceive. Regulatory bodies around the world are seeking more information from manufacturers on organic UV filters, but some countries are already taking action. The UK's Office for Product Safety and Standards plans to tighten limits on oxybenzone next year, bringing them more in line with Europe. Today, UK sunscreens can contain up to 6% oxybenzone, but in 2026 the maximum concentration will be reduced to 2.2% for products that are applied to the whole body. Creams and sprays for the face and hands, and lip salves, can still contain 6%, as they are applied to smaller patches of skin. In Australia, the Therapeutic Goods Administration (TGA) has recommended a reformulation of sunscreens and additional safeguards on three chemical compounds, including oxybenzone. In the US, an FDA review is ongoing. Some social media posts have spread claims that sunscreens cause cancer, but that is false. 'There's zero evidence for that,' said Antony Young, emeritus professor of experimental photobiology at King's College London. 'Skin cancers are caused by mutations, and almost all skin cancers have a mutation that is highly UV specific.' Others raise concerns over vitamin D deficiency. In the summer, most of our vitamin D is made through sun on our skin. But Young and his colleagues found that sunscreens have little impact on the vitamin D people make. The amount of sunlight needed to produce vitamin D is far below what it takes to cause sunburn. According to some doctors, concerns over skin cancer have eclipsed the broader health benefits of sunshine. Tentative research suggests that people who get more sun may have a lower risk of heart disease, high blood pressure, autoimmune diseases and even certain cancers. 'Sunburn is a risk factor for melanoma, but sunlight is good for you,' said Prof Richard Weller at the University of Edinburgh. 'You can use sunscreen, you can use a hat, or you can pop inside, whatever is good for you. Just don't get sunburned.' 'My general advice is to enjoy the sun, but don't get sunburned,' Young added. 'You can limit your time, or choose your time, or protect yourself, whether that's by shade, clothing or sunscreen. And sunscreens do work.'
