Apple ----- An apple is an edible fruit produced by an apple tree. Apple trees are cultivated worldwide and are the most widely grown species in the genus Malus. The tree originated in Central Asia, where its wild ancestor, Malus sieversii, is still found today. ---- Eating fiber-rich foods helps control symptoms and lessens the effects of acid reflux. An apple's fiber can also help with diarrhea and constipation. Some studies show that plant chemicals and the fiber of an apple peel protect against blood vessel and heart damage. Apples are incredibly good for you, and eating them is linked to a lower risk of many major diseases, including diabetes and cancer. What's more, its soluble fiber content may promote weight loss and gut health. A medium apple equals 1.5 cups of fruit — which is 3/4 of the 2-cup daily recommendation for fruit.