The Role of Lutein and Zeaxanthin

Lutein and zeaxanthin are two naturally occurring carotenoids found in high concentrations in the macula. These antioxidants are known for their ability to absorb harmful high-energy light waves, such as ultraviolet rays and blue light, before they can damage the macular cells. Additionally, lutein and zeaxanthin act as antioxidants, helping to neutralise free radicals in the eye.

The Clinical Evidence

Numerous clinical studies have demonstrated the benefits of lutein and zeaxanthin in reducing the risk of AMD:

1. AREDS2 Study: The Age-Related Eye Disease Study 2 (AREDS2) conducted by the National Eye Institute found that a combination of lutein and zeaxanthin, along with other essential vitamins and minerals, reduced the risk of developing advanced AMD by 18% in high-risk individuals.
2. Blue Mountains Eye Study: This long-term study discovered that people with the highest dietary intake of lutein and zeaxanthin had a significantly lower risk of developing AMD compared to those with lower intake levels.
3. Carotenoids in Age-Related Maculopathy Italian Study (CARMIS): This study concluded that a higher intake of lutein and zeaxanthin was associated with a reduced risk of developing both early and late-stage AMD.

The Protective Mechanism

Lutein and zeaxanthin protect the eyes from AMD through various mechanisms:

1. Filtering harmful light: By absorbing blue light and ultraviolet rays, these carotenoids shield the macula from the damage caused by these high-energy light waves.
2. Antioxidant properties: Lutein and zeaxanthin help combat oxidative stress in the eye, reducing the risk of cellular damage.
3. Reducing inflammation: These antioxidants may also have anti-inflammatory effects, which can be beneficial in preventing AMD progression.

Incorporating Lutein and Zeaxanthin into Your Diet

You can naturally increase your intake of lutein and zeaxanthin by including the following foods in your diet:

1. Leafy green vegetables: Spinach, kale, collard greens, and Swiss chard are rich sources of these carotenoids.
2. Corn: Yellow corn contains significant amounts of zeaxanthin.
3. Eggs: The yolks of eggs also contain lutein and zeaxanthin.
4. Supplements: Consider taking Vita LuTein Complex® supplements as recommended by eye care professionals.