The guava fruit is widely grown in tropical and sub-tropical regions of the world. It can be round to pear-shaped with a thin skin that is green and turns yellow as it ripens. The flesh can be white or even pink, and the seeds can be eaten. The guava fruit contains lots of beta-carotene (which forms vitamin A in the body) and vitamin C. The flesh can make a great snack or dessert chopped up, or scooped straight from the skin.