Citrus Fruit The citrus in oranges, clementines, grapefruits, tangerines, lemons and kumquats will cause your stomach to produce excessive amounts of acid that will make it very difficult for you to sleep.
For healthy adults, there's virtually no limit on the safe amount of fruit you can consume. The biggest concern for most fruits, including tangerines, is their high amount of naturally occurring sugar. Experts recommend eating five servings of fruit per day. Tangerines are a great way to reach this goal.