May Protect Against Age-Related Eye Disorders

It's typical for eyesight to gradually deteriorate with age. Over time, factors like sunshine, a poor diet, and certain lifestyle decisions like smoking can deteriorate your eyes and raise your risk of eye-related conditions. Oxidative stress, a significant risk factor for age-related eye conditions such as macular degeneration, cataracts, and glaucoma, is combated by chemicals in guarana.

According to one study, persons who regularly ingested guarana had improved self-reported eyesight than those who did so infrequently or not at all. Researchers in the same study used test-tube tests to see if guarana might shield eye cells from substances that cause oxidative stress. Compared to a placebo, guarana dramatically decreased DNA damage and eye cell death.