Spend some time peeling oranges, grapefruits, lemons, or limes. According to Wiegand, "citrus rinds contain chemicals that might irritate the digestive system." Plus, they don't have any juice to begin with. Check out these healthier-than-you-thought fruit juices. Apples and applesauers are a common sight in grocery stores all over the country. They usually come in two varieties: red delicious and white apple. Both types of apples have a high water content and low fiber content. Eating too many apples can lead to diarrhea issues for some people. Apples contain malic acid, oxalic acid, and cyanide compounds that release slowly into your body if you eat enough apples to cause symptoms. Pears are in the pear family (Rosaceae) along with apples and quinces. They are also a type of berry. Like apples, pears contain organic acids such as citric acid that can irritate your stomach acid if you ingest a lot of them at once. Pears are very high in sugar (almost as much as apples) but also contain vitamins A and C and potassium. Quinces are a type of plum native to Asia but now grown in Europe and North America. They get their name from the Arabic word for gold because of their golden color. Quinces are often used in making jellies and jams but also can be eaten out of hand.