NUTRITIONAL CONTENTS OF ORANGES 1. Oranges prevents arteriosclerosis - Arteriosclerosis is the hardening of the arteries. Regularly consuming vitamin C retards the development of hardening of the arteries. 2. Oranges prevents cancer - A compound in oranges called liminoid, has been found to help fight cancers of the mouth, skin, lung, breast, stomach and colon. The high vitamin C content also acts as a good anti-oxidant that protects cells from damages by free radicals. 3. Oranges lowers cholesterol - The alkaloid synephrine found under the orange peel can reduce the liver's production of cholesterol. Whereas the antioxidant fights oxidative stress which is the main culprit in oxidizing the LDLs in our blood.