Guava is an obscure tropical fruit that’s subtly acidic, with sweetness that intensifies as you eat your way to the center.
Why it’s healthy: Guava has a higher concentration of lycopene — an antioxidant that fights prostate cancer — than any other plant food, including tomatoes and watermelon. In addition, 1 cup of the stuff provides 688 milligrams (mg) of potassium, which is 63 percent more than you’ll find in a medium banana. And guava may be the ultimate high-fiber food: There’s almost 9 grams (g) of fiber in every cup.

How to eat it: Down the entire fruit, from the rind to the seeds. It’s all edible — and nutritious. The rind alone has more vitamin C than you’d find in the flesh of an orange. You can score guava in the produce section of higher-end supermarkets or in Latin grocery stores

Source: menshealth.com