It’s important to take care of your vision throughout life. But do you know which vitamins, one in particular, are essential for the health of your eyes?
Let’s start with vitamin B2 (also known as riboflavin), which plays a part in maintaining normal vision by helping to protect ocular cells against oxidative stress.
Our eyes are subject to high levels of oxidative stress from a range of external sources such as pollution, UV rays, dust, blue light from screens, tobacco smoke… What’s more, the eyes’ high metabolic activity itself generates large numbers of free radicals. The resulting oxidative stress can lead to premature aging of the eye as well as to the development of certain eye diseases.
In addition to its antioxidant action, vitamin B2 works by:
Vitamin B2 is found in dairy products, eggs, green vegetables, and nuts. You can ensure a good intake of the various B vitamins (including B2) by taking a B vitamin complex.
Next comes vitamin C, a champion in the fight against oxidative stress. Its powerful antioxidant effects are excellent for every aspect of health including vision (2).
But that’s not all: vitamin C also supports the immune system, which can help protect the eyes from infections and inflammation.
Which foods contain vitamin C? Good sources include citrus fruits (oranges, grapefruit…), as well as green peppers and tomatoes. In terms of supplements, you could opt for liposomal vitamin C for maximum efficacy.
Let’s not forget vitamin E, another important antioxidant that complements vitamins B2 and C in protecting the eyes against oxidative damage (3).
Dietary sources of vitamin E include wheat germ oil, sunflower seeds, Brazil nuts, and avocados, or for higher doses, there are vitamin E supplements.
Of course, all vitamins (and nutrients in general) have an important and complementary role to play in eye health.
But of all the different vitamins that help maintain healthy vision, vitamin A can be considered the absolute cornerstone.
In terms of eye health, current research suggests that vitamin A plays a role in:
Substantial amounts of vitamin A in the form of retinol are found in animal-source products: beef and chicken liver, oily fish, eggs, dairy products…
Certain plant-source foods also contain good levels of beta carotene, a vitamin A precursor. Carrots, sweet potatoes, spinach, mango, and melon are particularly good sources of beta carotene, though the conversion rate of beta-carotene to retinol can vary depending on individual metabolism and other factors.
To ensure an excellent intake of vitamin A, you could also take a dietary supplement that combines several natural carotenoids including beta carotene, (such as Carottol).
In some supplements, retinol is combined with other nutrients known to be good for vision, such as anthocyanosides from blueberries (one such product is the synergistic formulation OptiVision, specifically developed to support eye health).
As with any nutrient, overdosing on vitamin A can sometimes be harmful, especially for the eyes. Always follow the dose indicated on the supplement pack and be sure to consult a health professional for more information. Note that beta carotene has the advantage of being converted into vitamin A only when the body needs it, thus reducing the risks posed by excess vitamin A.
Of course, eye health does not just depend on a few vitamins but on eating a varied, balanced diet in general.
We should mention, for example, the key role played by the omega-3 fatty acid DHA in helping to maintain normal vision (try Super DHA to significantly boost your intake).
Studies are also investigating the potential of saffron in eye health (see Affron Eye).
Smart Eyes eye drops meanwhile, are very popular for preventing eye discomfort. They contain antioxidant, anti-glycation, and lubricating ingredients which are excellent for combatting dry eyes and eye irritation amongst others.
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