Zeaxanthin: properties and benefits for eye health

Zeaxanthin is a natural carotenoid known for its key role in maintaining eye health. Due to its antioxidant properties, it is often cited as one of the key substances for preventing age-related eye diseases and improving quality of vision.

It is precisely because of these special properties that zeaxanthin represents an interesting opportunity in the pharmaceutical and nutraceutical markets. In a global context where an ageing population is a growing phenomenon, the demand for innovative products to support visual health is increasing significantly.

Age-related eye diseases such as macular degeneration and cataracts are affecting an increasing proportion of the population, creating a growing demand for general wellbeing supplements and effective treatments. So, let’s take a look at the beneficial properties of this molecule, how it works and where to find it.

What is zeaxanthin and what are its properties?

Zeaxanthin, also known as E161h in the European Food Additives Code, is a member of the carotenoid family, natural pigments that give colour to many foods of plant origin. It is found in high concentrations in the macula lutea, a small area of the retina responsible for central and detailed vision.

Properties of zeaxanthin

Zeaxanthin is known for an extraordinary natural property: its ability to absorb excess solar radiation. This process, which is essential for the survival of the plants in which it is found, prevents too much sunlight from causing damage such as burning or dehydration, which would interfere with photosynthesis. However, this protective capacity is not limited to the plant world, but also applies to the human organism, particularly at the level of the retina.

In ocular tissue, zeaxanthin works in synergy with lutein to provide a powerful natural shield. Numerous scientific studies show that these carotenoids protect retinal cells from oxidative stress and damage caused by blue light and UV radiation. Their action is crucial in preventing retinal degeneration, a major cause of blindness and vision loss, especially in the elderly. These properties make zeaxanthin an incredible ally for visual well-being, especially in old age.

Eye health benefits

Regular consumption of foods rich in zeaxanthin or specific supplements can have significant effects on eye health. Let’s take a look at the main benefits.

Improved visual quality

Zeaxanthin works in synergy with lutein to improve visual acuity, increase image clarity and reducing eye fatigue disorders.

Prevention of age-related macular degeneration (AMD)

AMD is one of the main causes of vision loss in the elderly. Zeaxanthin, along with other carotenoids, can slow the progress of this disease by protecting the macula from oxidative damage.

Cataract protection

Cataracts, or opacity of the lens, are mainly caused by protein precipitation due to oxidative damage. As oxidative stress is one of the main causes of this condition, antioxidants such as zeaxanthin can counteract the damage caused by free radicals (ROS).

Where zeaxanthin is found

Zeaxanthin is naturally present in a wide range of foods, particularly those of plant origin, but also in animal products. The main sources of this valuable carotenoid include

• Green leafy vegetables such as spinach, kale and Swiss chard;
• Coloured fruits and vegetables, such as corn, yellow peppers, squash and mango;
• Certain types of fish and eggs, especially the yolk.

For those seeking a more comprehensive approach to visual health, there are targeted food supplements that provide a blend of beneficial substances to keep the body healthy and balanced.

One example is Proview, Cor.Con International‘s supplement containing hyaluronic acid, astaxanthin, zinc and B vitamins. Designed to support eye health, its formulation helps protect eye structures from damage caused by oxidative stress. Available in convenient capsules, you only need to take one a day to ensure an effective and consistent supply.

Possible contraindications and side effects

Although zeaxanthin offers numerous visual health benefits, it is important to be aware of the potential contraindications associated with taking supplements containing it.

Excessive use may cause adverse effects such as carotenoderma, a yellowish discolouration of the skin, or interactions with specific medications, altering their effectiveness. Although these events are exceedingly rare, some people may experience hypersensitivity to one or more components of the supplement.

To avoid any risk, it is always advisable to consult a doctor before taking any supplement, especially if you have a pre-existing medical condition, are taking any medication or are pregnant. Professional advice will help to assess compatibility and optimise benefits.