For instance, guava fruit is one of the top sources of vitamin C, often providing more than many citrus fruits. Studies, such as those referenced in eye health reviews, indicate that vitamin C acts as an antioxidant, helping shield the eyes from oxidative damage caused by factors like UV exposure. This nutrient may support lens health and contribute to reducing risks associated with age-related changes.
Guava also contains vitamin A, essential for maintaining healthy vision. Vitamin A supports the function of light-sensitive cells in the retina and helps keep eye surfaces moist and comfortable. Sources like health databases note that adequate vitamin A intake is linked to better eye maintenance and prevention of issues tied to deficiency
Additionally, guava provides antioxidants, including compounds like carotenoids. While not as high in lutein and zeaxanthin as leafy greens, some varieties contribute small amounts of these macular pigments, which help filter blue light and support retinal health according to nutritional studies.
But that’s not all – guava leaves bring their own benefits. Traditional uses and emerging research point to antioxidants like flavonoids (such as quercetin) and tannins in the leaves. These may help neutralize free radicals and support tissue protection, with some sources suggesting they aid in reducing dryness or soothing minor discomfort.
