by ROSALIND RYAN, femail.co.uk
Your mother’s advice that carrots can help you see in the dark may have been more than a ploy to get you to eat vegetables.Research has now proved that eating certain foods can improve your eyesight, reverse the signs of optical ageing and keep your eyes in good health.
One of the most common causes of poor sight is a condition called macular degeneration. This condition accounts for 50 per cent of all blindness and sight problems in the UK.
Imagine that your eye is like a camera. There is a lens and an opening at the front that focuses objects onto the retina at the back of your eye. The macula lies in the centre of the retina, which is sensitive to light.
Sometimes the cells of the macula become damaged and you lose the ability to appreciate colours or focus on detailed activities like reading. The condition rarely causes total blindness but can blur your central vision and sometimes make you sensitive to light.
It normally affects those over 60 years old, earning the name age related macular degeneration (ARMD), but a genetic form of the condition can also affect children and young people.
Doctors do not know exactly why the cells of the macular start to fail. One theory is that ARMD is triggered by free-radicals, harmful chemicals that your body picks up from sunlight, the atmosphere and cigarette smoke.
But there are some steps you can take to protect your eyes for the future. Follow our guide to eating your way to better eyesight.
Eat your greens
A recent study by the Florida International University found that eyes containing higher amounts of a nutrient called lutein were up to 80 per cent less likely to be suffering from ARMD.
Lutein protects the eye by forming pigments in the macula. The pigments help with vision by filtering out harmful blue light wavelengths that can damage the eye. The more pigments your eye contains, the less likely it is to fall prey to ARMD.
The Eyecare Trust, a national charity devoted to raising awareness of eye health, says, ‘There is increasing evidence to show that eating vegetables containing lutein is crucial to maintaining pigment density levels in the macula.’ Unfortunately lutein is not generated naturally by the body so you need to make sure you are getting enough from other sources.
These are mainly green leafy vegetables like spinach, broccoli and kale. A study in the American Journal of Clinical Nutrition found that eating a teaspoon of green leafy veggies with a small amount of fat raised blood lutein levels by nearly 90 per cent.
You need to eat lutein-rich vegetables for several months before seeing any benefits. But if you get bored of eating spinach, you can take a vitamin supplement to boost your lutein levels. These are available from all major health food stores.
A study published in Investigative Ophthalmology and Visual Science discovered that volunteers taking 10 mg of natural lutein supplements every day for 12 weeks significantly increased the amount of macular pigment in their eyes.
Start crunching on carrots
It is true – eating carrots can help you see in the dark. The essential nutrient responsible is carotene which is turned into vitamin A by the liver.
Vitamin A protects the eyes by helping to absorb the light energy that passes into the eye. Increased levels of vitamin A means
your eyes can absorb more energy and become more sensitive in dim light, helping you see more effectively.Karen Sparrow, spokeswoman for opticians Vision Express, says, ‘Children that are deficient in vitamin A often have dry eyes and in extreme cases can suffer from night ‘blindness’ where they have trouble seeing in the dark.’
Good sources of carotene are carrots, mangoes and cabbage. You can also find it in cod liver oil, milk and eggs.
Another fruit famed for its ability to boost night vision is blueberries. Anecdotal evidence from RAF pilots in World War Two shows they felt their night vision improved after eating blueberries.
The ‘magic’ ingredient in blueberries is a group of compounds called anthocyanosides. These attach to the area of the retina that is responsible for adjusting the eye to see in the dark.
You will need to eat blueberries for more than two months before starting to notice any effects. If they are difficult to get hold of, you can take them in capsule form or tablets, available from good health food shops. Aim to take up to 600 mg every day.
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Brain Boosters: Foods That Can Help Improve Your Intelligence, Alertness, Focus, And Memory
When it comes to your brain, there’s always room for improvement. One can never be too smart, too witty, nor full of too many useless facts. Still, all the effort needed to acquire such abilities is rather tiring. If only we could eat a food that would instantly transform us into geniuses. Well, until scientists develop this magic cuisine, here are a few foods that may help out a bit with your brain’s strength.
No one ever started their day wishing that they were less smart. Colleges make billions by promising hopeful 18-year-olds that four years at their institutions will make them more intelligent than the rest of the population. Little do they know that similar results could be achieved by simply consuming…dark chocolate? In a study conducted by Northumbria University in England, students performed better on simple math tests after drinking shakes chock full of cocoa, Fox News reported. It’s not that dark chocolate makes you “smarter” but it does help the knowledge you already have shine through a bit better. The flavonol in dark chocolate boosts the circulatory system, increasing the amount of blood that reaches your brain, according to Fox News. This ultimately increases brain functions which would explain why test scores can improve after a quick chocolaty snack.
When you’re feeling sluggish, you may be tempted to grab a coffee or candy bar for a quick pick me up. Although these foods will give you an instant energy boost, it’s often short lived and the later crash can leave you worse off. Vitamin E filled almonds may offer a more effective alternative. These are the most nutrient filled nuts, according to a 2010 study,Business Insider reported. The vitamin E and magnesium in almonds will keep your brain at top-working capacity without the aforementioned “crash” afterwards. If nuts aren’t your thing, there’s nothing quite like gold old fashioned protein to give your brain a much needed boost to get you through the day. Protein is able to stimulate orexin neurons, the cells in your brain responsible for keeping you awake. All animal by products such as fish, meats, dairy, and eggs are packed with protein.
It happens to the best of us. You get halfway through a perfectly fine work day when suddenly you find you can’t seem to focus on anything for longer than a few minutes. Maybe next time you should put down the coffee and try reaching for a berry snack instead. Studies have shown that blueberries in particular are able to increase “concentration and memory” for up to five hours. This is due to the large amount of antioxidants they contain. These powerful nutrients are able to stimulate the blood of blood and oxygen to your brain which results in sharper focus, no caffeine needed. The fact that they are able to fight cancer as well doesn’t hurt either.
Who doesn’t want better memory? Studies suggest that eating cold water fatty fish, such as salmon not only helps you to improve memory retention, but can also protect you for degenerative mental disease such as dementia. That is because they contain high levels of essential fatty acids called DHA. According to the BBC, tomatoes can help protect memory loss due to free radical damage to cells, you know just in case you needed a reason to have that second serving of pasta.