Orange
A US and Canadian study found that citrus fruit peels contain compounds called polymethoxylated flavones (PMF ) that are more effective in reducing cholesterol than prescription drugs. While most of us would shudder at the thought of munching on orange peels, adding their gratings to candy, tea, soup or salads is enough to derive their benefits.
Tomato
The tomato is one more fruit (botanically) that is loaded with nutrition -- being rich in carotenoids, vitamins A, C and E as well as potassium. The peel, with high concentrations of carotenoids, is difficult to leave out from this list.