Guava’s edible seeds provide soluble fiber that stabilizes blood sugar. Spikes can affect retinal blood flow. The American Journal of Clinical Nutrition highlights fiber’s role in vascular health. Sarah noticed steadier energy—and sharper morning vision. Curious about the colorful flesh next?

5. Beta-Carotene Boost from Pink Varieties

That vibrant hue comes from beta-carotene, converting to vitamin A in your body. Vitamin A deficiency affects night vision in millions. A World Health Organization report ties it to eye health globally. John savored the sweet-tart flavor, picturing stronger twilight drives. Still, one compound steals the show…

4. Lutein and Zeaxanthin: Nature’s Sunglasses

These carotenoids filter harmful blue light. Guava contains small but meaningful amounts. Ophthalmology research shows they accumulate in the macula, potentially preserving central vision. Bite into guava and taste protection. But the leaves hold an ancient secret too.

3. Polyphenols in Every Part of the FruitContinue reading…

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